Open Collections

The Chung Collection

Chung Logo

The Chung Collection

Princess Joan and Elizabeth specification of machinery and bails Canadian Pacific Railway. British Columbia Coast Steamship Service 1928

Item Metadata


JSON: chungtext-1.0363171.json
JSON-LD: chungtext-1.0363171-ld.json
RDF/XML (Pretty): chungtext-1.0363171-rdf.xml
RDF/JSON: chungtext-1.0363171-rdf.json
Turtle: chungtext-1.0363171-turtle.txt
N-Triples: chungtext-1.0363171-rdf-ntriples.txt
Original Record: chungtext-1.0363171-source.json
Full Text

Full Text

Auxiliary Condenser
Page   #.
Oil Fuel Pipes,          *.**
Page      12.
Air Pumps.
©iX ^uel Install at ion. *•
Auxiliary Steam
Oil Fuel Spare Gear,***.
Bilge & Ballast Pumps,
Propeller,                    «•••
Pumps, Sanitary,          *«••
Beds for Auxiliaries.
• **0
Pun_ps, Hot later,        «»••
Circ uiating,                 • ♦ * .
Boiler huntings.
• •• *
Platfoim,                        *«•«
Boiler Boom .floors,
• *••
Painting, Engine Boom
and Stokehold*             *••«
Condenser (Main).
• •• •
Plans.                             •*••
Circulating Pumps*
• •••   '
|j              Clock,
Bators.                           *..«
e 1 • •
Receiver Pipes,            •*.*
Regulating Valves,      •••*
_& seharge VsItob,
Refrigerating Machine...*
Beck Steam & Exhaust,
• ••*
I             Distiller,
• *•*
Steam Strainers,          ••••
Shafting,                       ••••
JJxpausIor- Joint a,
Stern Tubes,                   ••*•
Exhaust & Wast9 Stasia Pipes*.
Sea Suction & Discharge**
-Sngins Boom & Tunnel
Speaking Tubes,            ..*•
Steam Pipes,                  ••••
Engine Boom Furnishings
Skylights,                      *.*.
and fools,
20- 23.
Storerooms,                    _•••
Blectrie Fans,
Sand Boxes,                    *•**
Stesm %se,                    .•*.
friction Straps,
• »**
Spare Gear,                   ***»
Forced Lubrication,
Springs,                         ••••
Feed Pumps,
Feed .Filters,
Stesm Heating*             ••••
• •••
FeeS Heater,
Turbines,                         ....
Feed Pipes,.
• » • •
fttrbines, Glands.        ••••
Fresh %ter Pump,
* *•*
Turbines, Intrust Blocks.*
fan Engines,
• *• •
Turbine Bearings,        •••»
Flooring Plates,
* •• *
Turbine Drainage*       *.*•
Funnels & Uptakes,
• •••
Thrust Block,               •*••
Forced Draught*
• **•
Tunnel Bearings*         ••••
• *• •
Telegrapshp                    • •*.
Firs Protection,
*•• *
Tanks,                            ••»*
Tools,                             «...
General Description,
• •• •
Templates,                      .«*»
* •••
Turning Gear*                ....
• ••«
Gearing Bearings,
Valves, Regulating,    ...»
General S©rri<so Pump,
Gauges, Pressure*
Gauges h Templates,
• •• »
Valves, Main Injection.**
• *••
Valves,                           ....
* •* •
Ventilation, Sagine
loom & Tunnel,             *•••
Bot Water Circulating
Ventilation, Stokehold...
• ••*
Water Service,             ....
Injection Valves,
• ••*
Waste Stesm Pipes,      ....
Whistle*                        ••••
• •• •
lifting Gear,
• •• •
Main Steam Pipes,
• •••
l_ano©uvririg Valves,
The vessel to be fitted with steam turbines
of suitable power, and the whole of the machiaery and boilers to be made to
Lloyds1 requirements and in conformity with the Specification.
The propelling machinery to be Parson!s type, with single reduction
gear* To consist of two independent sets of compound turbines, each set
driving one propeller shaft and to be surface condensing.
The boilers to consist of two Yarrow boilers with a working pressure
of 350 lbs. per square inch above atmosphere, and superheated 200 degrees
Fahrenheit. Also one Scotch Marine boiler 12»G diam. and 12'0 long at a
pressure of 200 lbs.  The Yarrow boilers are to develop a shaft horse power
under a plenum of 2" at the fan, capable of driving the vessel at I7_f knots
as per hull specification, and are to be used in the main for the turbines
only.  The Scotch Marine Boiler will only be connected up to the auxiliaries
requiring steam, but the Yarrow boilers will have a connection from each boiler
to the auxiliary line with suitable reducing valves so that when the Scotch
boiler is blown down for cleaning the auxiliaries can still be operated. All
the boilers are to be designed for the use of oil fuel.
Three Diesel driven generators are to be provided, each generator
capable of supplying electric energy equal to T5 kilowatts without overload,
so that any two will be capable of supplying power and light with the full load
on.  Se© Electrical Specification.
All boilers are to have Howden Forced Draught System with no more plenum
than 2 inches at the fan.
The starting and reversing gears are to be brought together so that the
turbines can be conveniently started and reversed by one engineer standing at
the starting platfoim.
The material for the whole of the machinery and boilers must be of the
best procurable for the different requirements and the woi-aaanship must be
thorough and beyond criticism.
The casings are to be annealed steel castings where subjected to super-
hiat otherwise to be of close grained cast iron.  All to be cleaned out
thoroughly, all grit removed and specially examined. Casings will receive two
 coats inside of No. 1 Apexion.   All casing! Silflect to boiler pressure to
be tested hydraulically to 700 lbs. after st-^lvla'SBy and L.P. ahead and
astern casings to be thoroughly sound and strongly ribbed and to have heavy
.flanges.  Casings are to be constructed to the best modern practice both as
to material and method of fitting.
The propelling machinery to consist of two independent sets of Parsons
type of single reduction reaction turbines, each set comprising one H*P* ahead,
one L9P*  ahsad turbine, 0x10 astern turbine combined reaction and impulse, and
one set of gearing, each set driving one shaft and one propeller with revolutions no more than 200.   Astern turbine to be fitted of staple size and to be
capable of producing seventy par cent, of the power required for ahead service
Speed.  The turbines must be designed to develop the power necessary to produce
Vfk knots on trial and 17 knots in servico.  The casings are to be annealed
steel castings of ample strength, well ribbed and stiffened throughout.
Turbine casings, on completion, to b© thoroughly cleaned and painted.
The feet for supporting the turbines on their seats are to be of strong rigid
design, machined on the underside and arranged to piovide for the expansion of
the casing when heated, without affecting the alignment of the turbines and
gearing.  Casings to be fitted with all spring loaded relief valves required
for turbines and receivers?to conform to the best modern practice.
The turbine rotor shafts are to be of forged Siemens-Martin Steel, H.P.
rotor to be in one piece, the L.P. to be of the disc type, each wheel ea_fl£ully
fitted to the shaft and secured with keys and nut*  The blades and packing
pisses are to be in accordance with Parsons latest practice and standards, and
to be seeurely fastened into the wheels.  All rotors to be provided with ring
water throwers.
Blades on H.P. rotor to be Mbnel Metal.
After blading, the xoters are to be carefully balanced and when the
turbines are run by steam in the shop they are to be free from vibration at all
speeds up to 20 per cent, in excess of the designed 3?evolutions fbr full power.
All bridge gauges and adjusting gear, with relative fore and aft gauges,
to latest practice, to be supplied*
 - 3
The glands to be of the labyrinth type with external hooks and ar©
each to be provided with a pockst for removing steam leakage, or for supplying
steam to seal the gland*  A pressure gauge is to be provided for the pocket
at each end of each turbine, those for the L.F. glands to be graded to read
l/4 lb* Pipe connections to be fitted for steam sapply or leak off*  A reducing valve and relief valve are to be fitted. Regulating valves avft.ts t»S
fitted in a convenient position at each gland, and th© connections between the
glands are to be so arranged that the leakage from th© high pressure gland on
the H*P* turbine may be used to pack th© L*P* and astern glands. The glands
are to be specially designed to facilitate examination and adjustment, and so
fitted that external glands may be placed outside them for water testing
Baffle plates of gunmetal to be fitted to prevent leakage from the
glands impinging on the turbines.
A thrust block of the Mlchell type is to be fitted to each tuibine to
counteract the end steam thrust on the rotor and the pads are to be adjustable
on both sides.  Th© pad pieces for taking the thrust and the bushes are to be
lined with whit© metal, and the blocks are to be connected with the turbine
forced lubrication system.  The oil outlet is to be at th© top of th© casings
in order to keep the blocks flooded.
The bearing blocks are to be cast solid with the easing ends, and are
to b© fitted with gunmetal bushes lined with white metal for supporting the
rotor spindle. The exterior suffac© of the bushes is to be cylindrical so as to
facilitate the removal of the lower half bush without distuibing the rotor. Test
cocks for bearings, and provision for taking temperature of oil outlet from
bearings are to be provided. Glass oil sights are to be provided with an electric light behind on the oil drainage system.
Tli© turbine casings and connections are to be lagged with 2* thick
magnesia mattresses* An air space is to be provided and an outer lagging fitted
with 2M magnesia mattresses for H.P. turbine and!" thick for L.P. turbine.
This outer lagging to be suitably carried and covered with planished steel
sheets held in place with polished steel bands and brass screws.
Portable sections to be fitted for access to the bolting of the longitudinal joint and a plate will be fitted to prevent foreign matter lodging in
the air space of lower half of casing.
Tforory steam pipe and exhaust pipe, all cylinders of auxiliaries, heaters,
valves, capable of giving off heat, all piping likewise to be lagged with 85 per
Seat* magnesia of maximum thickness available, seetionslesverlng for piping of
thickness equal to half the pipe covered*    Wire woven asbestos cloth covers to
be fitted wherever planished steel is not applied.
The Scotch Boiler to be lagged all sound and on ends where exposed as
far as possible of 85 per cent* fflagnesia 4n thick of blocks with plastic magnesia
finisft and covered with galvanised sheet iron 16 L.W.G. carried right round and
secured with bands 14 L.W.G. pitched 24* apart.      Water tube boilers to be lagged
according to Messrs. Yarrow's latest practice for high temperature boilers.
A trip emergency governor of the Aspinall type is to be fitted to each
L.P. turbine shaft and arranged to actuate the emergency valves uhen th© revolutions exceed 15$ of full power conditions.
REdiyJSR PIPES; /    s
The receiver pipes between tuibines will be^oTmed by copper bellows
pieces to provide for expansion of the turbines.
Th© regulating valves for the steam supply to the turbines/to b© of th©
best and latest type geared if necessary to enable control possible from starting
Suitable strainers are to be provided on steam pipes, suitably arranged
for examination with an area through strainer diaphragm ©qual to 2J- times the
steam pipe.
_6_gpansion joints with gunmetal glands, sl©eves and neck rings to be
provided wherever necessary on main steam pipes.
 - 6 *
Turbines are to be drained to best modern practice with suitable
valves or cocks workable  from starting platform.    The pipes from the drain
Valves or cocks to be led to the condensers.    The bs*-PSls of th© turbines to
be so arranged as to be ssJUMraining.
Each set of turbines is to drive a propeller through single reduction
mechanical gearing, having machine cut double helical teeth, and pinions to be
fitted with flexible couplings* All gearing to be suitably encased for support
and protection and lubrication, which will be forced lubrication* All doors in
gear casing necessary for observation and ventilation to be provided. Gearing
to be carefully cut to latest practice and load on testa not to exceed 500 lbs*
per lineal inch and bearing of b©eth after trial to be at least 2/3 face width*
Pinions to be nickel steel*
Pinion bearings to be fitted circular for easy removal and to have gunmetal strips fitted to prevent pinions getting out of alignment should whit©
metal become damaged* Main gear wheel spindle bearings to be of cast-iron lined
with white metal* Bearings are to be provided with forced lubrication*
A thrust block of the Michell type is to be fitted on each line of
shafting in the usual manner and of the best construction*
The th_?ust, tunnel and propeller shafting are to be of slemensHUsrtJa
mild ingot steel, hydraulic forged by first-class makers.    Thrust, tunnel and
propeller shafting to be increased i" above Lloyds* requiriBjiiatS *M *° D@ turned
bright all over.
Tunnel shafting will be l/8" larger in diameter at all bearings and all
couplings will be protected with suitable guards made portable and having convenient sight hol©s fitted.
Trailing coHaaps are to be fitted in the shafting.
The propeller shafts ar© to be brass lined in the brackets and the taper
for propeller to b@ ln per foot of diameter; in the stern tubas they ar© to bs
 • 6 «.
brassed lined from end to end.
All liners on all shafts to be shrunk on and fitted solid without pins.
Travellers with all g@ar for lifting shafts to be fitted in tunnel as
required and approved.
Straps to b© arranged on aach lin© of shafting sufficient to hold the
shafting in fwsition if required to disconnect at sea.
To be of cast iron, lined with white metal of selected alloy.    Covers
to be lined with white metal strips at ends and bearings fitted with forced
Stern tubes are to be of east Iron and to b© of length to suit hull
construction and bossing.    Each tub© is to b© carefully fitted into the frame
at after and of bossing and also into th© bulkhead at forward end.    The tub©
will be fitted with a stuffing box, gunmetal bushed, a lantern ring, and bushes
both aft and forward.    The bronze gland studs should have two left long enough
to enable gland to be packed while the vessel is afloat*
A valve for \mt©r supply to gland to be fitted to approval* This will
be in addition to the water service pip© carried to th© bearings in tunnel and
extending to the stern gland*
Propellers to be of the built type with cast steel boss and blades of
manganese bronze and to be fitted so that the blades at top mov© outwards when
going ah©ad. Propellers to be a suitable design for th© conditions both as to
diameter and pitch* The boss is to b@ fitted to shaft In th© usual best practice
and th© blades ar© to be fitted with a range of two feet in the oval holes of th©
blades. The propeller nut£$» to b© hexagon and an approved method of locking
the nut is to be fitted. Jt eoaeSto approval will be fitted over th© nut!as agreed.
Zinc protectors are to be fitted to the -bos* as necessary.
The nA" fraites ar© to have protection' appe©v©&~in the i»y sf the-metsl
 7 -
St ©am turning gear to b© fitted.
Forced lubrication will be fitt©d for turbines gearing, thrust and
bunnel blocks in the best manner and practice, pumps to b© fair's of aiqpl©
size and to b© three in number {2 working and 1 standby) so that continuous
lubrication can be assured.    Oil coolers of ample size to be fitted in duplicate
sad approved.    A duplex water service pump to be supplied fsa? circulating through
the coolers.    Th© pump to be of gunmetal throughout in the utter end.    Oil strainers to be fitted as approved and to be twin.    All tanks, supply and all drain
and float tanks to be fitted of approved size and construction for their various
uses.    Th© Bui3_fers to supply and instal aH the above to approval.
X.   ffxA <" }
The main condensers ar© to be $_ri_K___^£9ra^1_ype, of anpl© capacity, in
two sections interconnected so as to facilitate replacing of any tub© through
failure, th© coaling surface must not be reduced to the minimum and notless than
on© and on© quarter square feet per H.P.      These condensers to be arranged under
L.P. turbines with all manholes in th    shell and doors suitably fitted.        The
tubes and ferrules are to be of cupro-nickel, 70 percent,  cu.  30 per cent, nickel,
tubes to b© 3/4* external diameter.      Th© tube plates are to be of ampl© thickness*    Th© ferrules ar© to be checked inside and of approved make*    All tubes
are to be packed with cord*    The condenser to be tested to a pressure of Jfife lbs*
to the square inch by water pressure after th© tubes are packed*    Condenser door,
main injection and pipe leading to condenser, to bsye two coats of No. 3 Ap©xior*
TT-i     .'ilillimi Tii'TrtT hm tirmtrr? trv^lT.x^e""iittt£d^©dPjpou^so;b©fore being ffttsil
ij-uplaee* Afi/£tS.  £>eir ty/M "Y*        7fes//tp¥
The condensers ar© to b© arranged to give 12rt head of water over th© top
row of tubes when testing without water ©ntering th© turbines*    Valves for watsr
testing to b© fitted to condenser sheila and connected up to fresh water pump
discharge lias*    Fresh water mak© up feed connection is to be fitted at each main
condenser and connected to feed tanks through a strainer.
A ln gunmetal cock to be fitted in the top of th© condenser water end to
p_essent accumulation of air*
The condensers are to be capable of maintaining a vacuum of 28f inches
 - 8 -
at full power required with a 5$ loss in cooling surface, the s@a temperature
being reckoned at 60 d©gre©s F. and the barometer at 30.
An auxiliary condenser of the Weir Uniflux type to be fitted in -Sngine
Room, of sufficient square f©et of tube suiface to condense th© exhaust steam
from all auxiliaries used in port and also, when at sea, to take any surplus
auxiliary exhaust steam not required for feed heating* Tubes and ferrulit*-
similar in ©very respect to main cond©ns©r,
POooling water to be eirculated through condenser by general service
Th© auxiliary condenser to be/complete unit in every respect with
separate air pump.        / A / //•'
ff// gR /,/*  or>*c*tf*fj{/'*/ aii <W#ffi«* ft *- **#''" *»*/
Ois centrifugal pump of ample capacity and by an approved maker to b©
fitted to each main condenser and to be driven by an independent engine.    Each
pump to be capable of maintaining, without overload, the »aximum cooling water
in both condensers at a speed of eighteen knots.
Eaeh pump is to b© arranged to draw from the s©a and engine room bilges.
Th© bilg© valr© to be non-return*    Th© pump impellers are to b© gunmetal and
th© shafts of rolled bronze.
A V* cock for discharging sir is to be placed on the highest part of
each pump chamber, having copper pipe led to bilge where the end can be seen,
and also a 4*1 drain cock at lowest part.
The engine for driving the pumps to be of the enclosed type by an approved maker and fitted with all necessary drain cocks,  lubricators, guard plates,
etc.    Provision to be made that either pump may supply both condensers with water.
T/v*/* +f?jfyyt bu-mh e&$r»f£ &7& ^  i&e-ehf-g  t&& emS   a/ A® i ^5^«*/*v &/A^  _£*/.
AIR PUMPSS        !       '   /
To be Weir's Paragon typ© with air ejectors, one set being fitted for
each main condenser and of sufficient capacity to maintain a vacuum of 28§ inches
in tho condensers with sea water at 60 degrees Fahr*, the barometer at 30 inches
and the turbines developing full power. These air pumps to be designed to work
at not mor© than fifty double strokes per minute when the turbines ar© developing
full power.
 - 9 -
3&© pump to discharge through gravitation filters to the feed float
The pump, liners,  buckets, valve seats, guards, and nuts to be of gm_~
metal and the valves of Kinghorn's patent metal thre© to each valve*    Pump rods
and studs to b© of rolled bronze.
To be of cast iron of approved make and fitted with a steam connection
below the valve so that th© growth accumulating can be steamed out.    These valves
to be the best procurable in ®tqtj respect for the purpose*    Suitable gratings to
be fitted to ship's side*      Inside of valves and all piping to and from circulating water to have two coats of No 3 Apexior*
All discharge pipes through the ship's side to b© fitted with strong cast
iron valves arranged to open to internal pressure and close to external pressure.
Valves,   seats, spindles and glmds to b© of brass*    These valves to b© fitted to
discharge abov© th© mean water water line.    All these valves to be fitted with
lifting gear*
A complete water service to be fitted to tunnel blocks and stern glands
with all neesssary copper pipes and connections, and arranged to b© s©rved by
th© oil cooler water circulating pump. Water pipes to the tunnels to b© of strong
copper of larg© size and arranged so that besides th© connections to the bearings
the service pump can force water through stern tubes if required.
Th© tunnel service to b© connected to th© general service pumps as well,
as an (emergency.
To have four of Weir latest improved double acting pumps, two for water tube
boilers and two for Scotch Marine, in each case the capacity to be such that one
pump will feed its respective boiler at maximum pressure at its maximum exaporation
at eleven double strokes per minute.  To have U.S. packing in piston rods and so
that bucket can be removed without interfering with packing* Group valves to be
Monel Metal.   To draw from/feed tanks and from fresh water tanks and discharge
to main boilers through both main and donkey check valves. Pumps to tak© steam
m '■
 - 10 -
from the auxiliary staam line and to ©xhaust to the auxiliary line and to have
screw down valves on both steam and ©xhaust. Pump rods to b© of bronze. Punsp
chambers to have gunmetal withdrawable liner, the water buckets to be fitted
with the latest improved rings and springs and to have all necessary oil cups,
lubricators, spanners, etc. Air vessel to be fitted on pump discharges.
Note:  The pistons of these pumps must be made noiseless, which is at present
don© in steamers of the B.0*Coast Service or other approved rank© feed pumps will
be selected.
To be Weir's or other approved make, surface type. To have two arranged
in series on the Main Feed line to W,T. boilers. The primary heater to b© designed to absorb the whole of the ©xhaust from th© steam auxiliaries, the secondary to be capable of heating the total feed to a temperature of 290 degrees Fahr.
when supplied with steam tapped from main turbines* Primary heater drain to be
led through filter to auxiliary holwell tank, secondary heater to be designed and
fitted for utilizing heating steam direct from Scotch boiler.
Improved gravitation filters to be fitted up for W.T. boilers and Scotch
boilers, _^_%_^_^ite^_i9^£r$^^^3!sk9 the filtering taking place befor© water enters the
feed tank. Filters to be fitted with all necessary stop valves, including by©-pass
by means of which the filtering material may b© renewed,- etc., without interfering
with pumps, etc*, and to b© so arranged that one section of th© filter can be overhauled while the other is at work. Filters to be fitted with air pipes on filtsrs
and drain cock to bilge.
To be two in number, duplex, brass mounted throughout water end of Drysdal©
or other approved maker and to be of sufficient capacity to throw a stream of water
from the nozzles of fifteen lengths of 2" hose distributed throughout the ship.
The stream from the farthest nozzle to throw 50 feet.
These pumps to b© arranged to draw from the sea, fresh Water tanks, ballast
teaks and bilges, and to discharge overboard, to sanitary service tank, firs service,
fresh water system and auxiliary condenser.
 - 11
To be two in number, duplex,    brass mounted throughout the water end,
of Drysdal© or other approved make.      Those pumps to draw from the  sea, the bilges
and ballast tanks and to diaeharg© overboard, and to wash deck service.
A fresh water pump, duplex type, brass mounted throughout,  to pump from
the fresh water tanks or any ballast tank and to discharge to the freSh water
tank on top of Boat Deck.    To be of sufficient capacity to keep fresh water tank
full, which tank will be th© supply for the hot fresh water tank, and also the
entire fresh, water supply of the vessel*    This pump will have an overflow arranged
from fresh water tank on top of Boat Deck bo return to the tank being pumped from
and the overflow to have a sight arranged in engine room,  so that the engineer on
watch can b© assured that th© tank on top deck is full.    This pump will run continuously.
A duplex brass mounted pump of Drysdal© or other approved make to be installed to pump to tli© sanitary tank on Boat Beds and capable of keeping the tank
fuH for all sanitary purposes and salt water bath supply, the pump to run continuously and th© overflow to flush through th© crew's soil pips even though the
pans are fitted with flushing valves.
A small duplex pump, brass mounted, to be fitted to draw from all dead
ends of all hot water circuits and discharge to hot water tank.    All relief check
and air valves necessary to b© installed.   All to approval.
Note:    Metallic packing (preferably U.S.) in all steam piston rods of all pumps.
Fan engines of approved make to be supplied for Howden's draught.    The
Scotch marine boiler to be on an entirely separate fan and trunk system from th©
W.T. boilers*    All this arrangement to be approved.
To be of solid drawn steel with flanges forged solid with pipes, with
large bends and w asbestos packed cocks for drains led to Hotwell,
 - 12 -
To be solid drawn steel above 2H, below 2" pipes to b© copper.
Above 2W bore, straight lengths lapweldsd steel, bends solid drawn steel,
2*1 bore and below to b@ of copper*
Main and auxiliary feed pipes to boilers to bo solid drawn steel - feed
suction pipes copper or solid drawn steel*
To be copper.
Galvanized iron with malleable cast fittings, galvanized.
Galvanized iron with malleable cast fittings, galvanized.
The straight lengths to be solid drawn steel with copper bends and copper
where exposed to ?;©athsr*
Black pip© with cast iron fittings, as may b© arranged*
Where necessary to have efficient expansion bonds or stuffing boxes.
The whole of th© st©am pipes in connection with the boiler and engines to b©
carefully covered, as herein before specified.
All st©am pipes throughout th© Engine Boom, ©xcept as previously mentioned,
to be inspected and tested in th© presence of th© Owners' representative to 600
lbs. for-steel and 400 lbs. for copper, before being placed in position.  All
flanges must be strong and reliable and truly faced, and have the maximum number
of bolts.
Special expansion joints of brass to b© fitted with any necessary safety
bolts. All steam pipes to have efficient drains.
All cocks and stop valves below 2" bor© to b© of best brass throughout
with bronz© spindles.
 - 33 «*
Valves for auxiliary steam to b© fitted on boilers as specified, valves
for whistle to b© fitted on all boilers and drain fitted so that whistle will
be clear at all times. The piping for auxiliary and ©xhaust to be ring system
with all control valves and shut off valves, arranged so as to enable overhauling
to b© carried out while vessel is on service having th© auxiliary machinery required for operation of main engines working.  All auxiliaries to b© on reduced
steam with approved reducing valves of such as Auld type fitted wher© required.
All valves for steam exhaust, water,  sea connections, oil, relief eheck,
reducing and air, etc., to be of tho best pro curable and to best pract/for their
various locations and uses.    The Dynamos to have separate reducing valve, steering
gear to have separate reducing valve, and heating system to have separat© reducing
valves in addition to the other reducing valves required.
On© gauge for each boiler in stokehold. All gauges from boiler steam down
fitted in th© best turbine practice to be supplied and fitted in engine room.
Gauges for Main Steam from W.T. Boilers to register 550 lbs. Gauges
generally to have 7n dials mounted as required with all cocks and connecting pipes
complete. Gauges similarly supplied for ©11 pumps in ©ngln© room and stokehold,
reducing valves, etc*, and these ar© to b© fitted with look-up safety valves* All
gauges to be of approved make*
A pyrometer and electric thermometer ar© to be fitted in th© superheated
steam pip© of each boiler, complete with flexible connections led to dials, placed
in approved position in boiler and engine rooms, Th© electric thermometers are
also to b© fitted to main steam pipes in engine room, and to steam pipe leading to
H*P* Turbines.  Two indicators ar© to b© fitted in engine room at starting platform*
An automatic steam recorder of the Budenberg drum type suitable for seven-
day periods is to be fitted in the Chief Engineer's room with connections to H.P*
turbin© receiver port and starboard*  A single steam pressure recorder is also to
be fitted with connection to auxiliary st©am range,  Four full year charts ar© to
b© supplied to Chief Engineer*
A CO. Machine of Hall's make to bs fitted in Engine room as directed with
all piping to the various chambers supplied to keep the different compartments at
 - 14.
th© deslrad temperature.
Th© manoeuvring valves ar© to b© of th© best make of double beet valve
and are to be arranged in a group system with a separate valve or control for
ahead and astern movements.
To have two reply telegraphs of Robinson's or other approved make, fitted
from the Engine Room to two on the Bridge and on© in Wheel House,    All stands
and dials ar© to be brass throughout and having electric lamps fitted*    All wire,
chain, pulleys, turnbuckles necessary to ensure a complete job to be fitted and
in such a manner as to avoid all bends possible, and where bends must b© these to
be as easy as possible*    All th© casing enclosing th© telegraphs leads to be
made readily accessible.
3&_gine Room clock to be electrically controlled and to b© fitted as and
whero directed, possibly on th© group gauge board at starting platform*
Counters wherever required for main engines, pumps, ©te*, ar© to b© all
of the latest approved type for their various locations*
Speaking tubes to be arranged from Engine Room to Chief Engineer's Room,
from Engine Room to stokehold with ball calls and replies fitted throughout*
Also Graham Navy phone to be fitted in Engine Room to Bridge as stated in Hull
sp© cification.
All ladders in Engine Room to b© of easy rise and of a neat design, thes©
ladders to land on suitable platforms and to have handrail fitted throughout, with
rail and stanchions polished*
Platforms to b© fitted round engines wherever required to give access to
all machinery parts, valves, pumps, etc., as roquir©d, these glatfoims aid gratings
to hav© rungs of triangular section and foot guards with polishsU stanchions
and hand rail. Gratings in Boiler Rooms to hav© round rungs.
To be chequered steel plates 5/16'* thick.
Skylights to be fitted with screw gear controlling all engine room §Jpf
lights from th© Engine Room platform.
Engine Room and tunnel over shafts to b© fitted with suitable travellers
and lifting gear for turbines and condenser doors, with all necessary screws,
eyebolts, shackles, etc.  All this must be particularly done, both as to strength
and ©as© of handling*
All beds for auxiliaries to b© strongly constructed. Th© beds for ©loc-
trie engines and dynamos to b© fitted as mentioned in Hull specification to reduce
vibration and ©iectrie machinery arranged in aft end of Engine Room*
All ship's running supply tanks for cylinder, engine and paraffin, of
sufficient capacity to hold 120 imperial gallons and tank for turbines lubricating
oil to be of capacity sufficient to replenish th© whole system, with all filling,
etc., arranged to fill from deck with all deck plates, caps, and shut off cocks,
required.    Also to hav© all drain cocks of suitable make*    There will also b© tw©
sets of three compartment tanks for watches of the usual type and construction.
A tank for wast© of sufficient capacity to hold two bales of waste.
Z T**k A A*** *!/ % U'" ***** *"M **•/ to*f*"w **&
Engine Room store rooms to be as noted in Hull specification and to hav©
a special store for electric supplies and electric spar© gear, fitted up la ©r@ry
respect to modern requirements, with all vices, shelves, benches, and tools in
first class practice.
The whol© of th© Engine Room, Boiler Room, bulkhead and casings therein
 <* Jflp- #
to have three good coats of paint of approved color in addition to th© priming
coat,  this includes the skylight trunk in Engine Room, overhead decks, etc*,
and to have enamelled finish where directed.    All varnishing required to be sx-
ecuted in first class manner.    All pigments and oils used in the paint must b©
th© best procurable.
Th© Engine Room will have four 2 feet square ventilators, or as may be
arranged, fitted as required and  the ventilators geared to allow of ©ngin© room
Th© tunnel will be ventilated by goose neck vents at ship's side and
there must be sufficient to give good ventilation.    The tunnel ©scape can also
be fitted as a ventilator.
There will be one Scotch marine boiler and two Yarrow typ© water-tube
boilers*  Th© Scotch boiler to b© 12*© diameter and twelve f©@t long.  Thr©@
Furnaces, Deighton withdrawable typ©. Th© water tub® boilers capable of producing 2800 S» H.P, each with a two inch plenum. Th© boilers must hav© Lloyds'
and th© Board of Trad© certificates and stamps on plates, etc., as required by
law and must satisfy the Canadian Government Inspection requirements for 350 and
200 lbs. pr©ssure. Th© boilers to be tested hydraulically to 650 and 350 lbs.
in the presence of Lloyds' and Board of Trad© Surveyors and th© Owners' Representative, and affidavits to be filled as required by Owners for Canadian Inspection
Boilers will be fitted with all pads for valves, facings for valv©s,
draining plugs, manholes, as required to giv© access to th© boilers in the usual
manner and so placed to be of easy access in all eases. Boilers will be cradled
in stools of ample strength, suitably placed and s©cur©d.
Boil©r tubes of Scotch Marin© boiler to be of B.B.B. iron and sufficient
spar© tubes to complete boiler supplied, and an ample supply stored of each size
of tub© fitted in Yarrow Boilers to supply on© boiler.
Boilers will b© covered as previously specified. All manhole doors to be
of pressed steel pattern such as M'Nsil* patent manhole.
Boilers to be fitted with all cages and hangers for zinc plates, to the
 - 17 -
extent of twenty-five for each boiler and to b© placed as required by Engineer*
Th© voter tube boilers must be eonstruct@d up to the latest standard in
ov©ry particular, baffled in the latest manner and tested throughout to the
pressure adopted for the various parts in the presence of Lloyds' and Board of
Trad© Surveyors and to Owners' Representat lv©*
Water tube boilers to receive two coats of No* 1 Ap©xior in all tubes
after being thoroughly cleaned, and also to receive two coats of No. 1 Apexior
six inches up on smoke box side where tubes enter lower drums. The Scotch Marin©
boiler to receive two coats of No* 1 Apexior over all heating surfaces, after
being thoroughly cleaned.
Not©:  Apexior is not to be applied until surfaces are cleaned thoroughly.
Boilers will be fisted with main stop, auxiliary stop, and whistle valves
as stated, safety valves, main and donk©y check valves, with combined shut off
» valve, scum valves, blow off5 valves, ship's side cocks and locking guards with
spanners, gauge glass columns, having two glasses fitted to each boiler, on© on
port and on© on starboard aid© of ©ach boiler in stokeholds, test cocks, and
guage glass fittings with double shut off cocks on boiler.  Salinometer cocks,
pressure gauges and cocks for gauges on boilers as well as on gauges*
There will b© throe funnels, two for boilers and on© dummy, for galley
funnel and ventilation, funnels for boilers to b© made of i" plat© for lower
courses to a height of 12 feat above Main Deck and well stiffened with angles,
lighter plat© will b© allowed above, suitable arrangement of expansion to be
provided* Funnels to b© double and all funnels to be th© same siz© outsid©*
T© be Howden's forced draught system with separate fans and trunk system
to th© Scotch marine boilers, Th© Scotch marine boiler must not be forced to
produce evaporation and consequently power by an excessive plenum, it is desired
that the extreme output required from this boiler be accomplished with a plenum
St the furnaces of not more than ^s*P* The water tube boilers fitted with an
independent forced draught system ar© required to produce th© evaporation sufficient
to giv© th© required power with a 2" plenum* All trunks must be suitably designed
 - 18 -
with all air control valves complete and size of trunk
so regulated that
and ©very boiler will be properly supplied with heated
Iraporator one of Quinnins typ© capable or eva]
porating 30 tons Of ireSh
water per 24 hours. Steam supply from auxiliary rang©
and vapor led to
To be fitted with all necessary mountings, including feed connections
from General service pump and from all tanks.
To be lagged and finished with plenished sh©@t steel*
A distiller of Weir's or other approved mak© capabl© of producing 6000
gals* of fr©sh water per twenty-four hours at 65 degrees Fahr* with circulating
later at 60 degrees Fahr* to be fitted in engine room with all necessary pipes,
valves and connections.      Aerating apparatus as required by B.O.T. Arranged to
tak© steam supply from evaporator. #WtiA 77*^
Filter to be fitted in engine room on line of discharge, with cock ot
hand hole of sufficient    size for trial of output*    Drain to be l©d to reverse
and distilled feed tanks*
Th© oil fuel to be carried in double bottom and deep tanks at sides of
stokehold*    There will be two spaces left between the oil fuel tanks at sides
of stokeholds, on© on tho port side sad on© on the starboard sid©*
A set of oil fuel pumps, heaters, suction and delivery strainers, thermometers, relief and regulating valves, and all piping necessary for a complete
installation to be fitted in <m®&» stokehold as agr@©d, and to be mad© interchangeable so that boilers can b© fed from either pump*    Th© system of oil fsftl
installation to b© approved for both Scotch and water tube boilers and must be
complete in srery respect for 0?m©rs' requirements.   A #" connection will be
fitted to discharge at ship's sid© both port and starboard with American fittings
and cap to supply any other ship with oil if r©quir©d.      These pipes to b© placed
where directed on Main Deck,
Note;      It is intended that the spae© left between oil fuel tanks will be used
for all discharges from soil pip©, wast© pip©s, ©tc.
To have large bell st©am whistle, to b© of such size and volume as to
require a thro© inch supply pip© and the sound to be such as to giv© a good
distinct echo.
Th© wiistl© to b© fitted on forward funnel at agreed height sith access
ladder having all guards, valves, platform for whistle, spring whistle valvs
with lever, ©tc. Th© whistle must b© arranged to drain efficiently so that
whistle will sound truly when required. This is most essential as ship is constantly in narrow waters.
Floor plating to be chequered steel plates 5/16" thick, fitted with the usual
t bars, angles, and bearers n@c©ssary to giv© acc©ss to boiler tops or connections
and must have all gratings as required.
AH necessary guards, stanchions, and hand rails must be fitted as required.
It must be understood that floor plat©s, platforms and ladders must be arranged to
giv© ©asy access to any valves or connections in th© vicinity of such platforms.
AH necessary sand boxes to b© fitted permanently as and wh©r© required
in each stokehold*
Connection in ©ngin© room and in ©ach stokehold to be fitted for 1" steam
hos© with 50 ft. length of flexible steal steam hos© for ©ach connection with all
fittings and nozzles complete.
Fir© protection of th© Lux system or other approved system to b© installed
in stokehold, also throughout the whol© Main deck wh©r© oars ar© handled, and must
be complete in ©very respect*
Fire extinguisher*, 2J- gallon capacity, to be supplied as and where
directed throughout the ship, also on© quart Pyrenes, Qms"  six 2j§- gallon extinguishers and one dozen Pyr©n©*
Steam heating throughout the ship will b© supplied from the auxiHary
stoam line through an Auld's reducing valv©. Th® piping will be copper pips
 - 2$ -
throughout with brass fittings throughout.   Each room will have individual
heatstfc wherever located, and returns from heating system to be arranged as
far as possible to avoid traps.    To return to hotwell with connections to main
and auxiliary condensers*
Note:      All workmanship must be th© best throughout and must conform to th©
latest practice of the highest standard*    Th© whole of the machinery to b© completed to the satisfaction of th© Company's r©presentativ* irrespective of any
omissions herein contained.
Two sets of Plans on linen to be supplied of the machinery and boiler
drawings, including th© main details and arrangements*
1 teakwood lock up desk.
12 oil cans quart size.
12 oil feeders*
2 oil funnels,
1 gallon oil measure*
1 i gallon oil measure.
2 brass cocks for oil barrels.
6 glass Salinometers*
1 Standard Salinometer.
It copper pans for Salinometers*
4 thermometers in copper case.
12 oil lamps for engine room*
1 oil lamp at one gauge glass on ©ach boiler*
4 oil larqps in tunnel*
4 safety lamps*
2 dozen electric hand torches, with batteries complete, and one dozen
spar® sots of batt©ri©s*
2 brass syringes.
6 log slates.
1 Bulkhead plumb bob for indicating list.
6 galvanized water buckets.
12 scrubbing brushes.
 -21 #
2 dozen assorted paint brushes.
12 swabbing brushes.
200 assorted bolts aid nuts.
2 sheets of Kinghom metal,
2 ratchet braces.
2 crank braces.
2 br©ast drills.
1 drill post.
36 drills assorted (twist).
1 pair of outside calipers to take 24"
1 pair of inside calipers to take 18".
2 st©el straight edges one 2*0" and on© 4'0" long.
1 cross cut saw*
2 axes*
1 jack plan©*
0 screw drivars*
1 gouge chisel*
3 wood chisels.
1 set of wood brace and bits with extension bits complete*
2 trowels*
1 box of taps and dies from i" to lit4' Whitworth.
1 set of pipe taps, adjustable dies, and all stocks from i" to 2"
American standard*
2 pairs of eyebolts,  if*, 5/8", |«, 7/8", 1", l-l/8", li« diameter*
2 tail, vices, each about 90 lbs*
2 vice benches with drawers.
2 hand vices*
2 pairs of  copp©r vice grips*
1 pair of l@ad vice grips.
6 steel wedges assorted*
18 files assorted with handles.
4 Raised file handles.
1 dozen hand hammers*
I copper hammers, 6 lbs.
 - 22*
2 lead hammers, 6 lbs.
2 dozen assorted chisels.
6 beam grabs*
1 face plate 12" by 24".
2 pairs of iron blocks with brass sheaves to lift 2 tons, 3 and 2 sheaves
2 pairs of iron blocks with brass sheaves to lift 1 ton, 3 and 2 sheaves.
2 pairs of iron blocks with brass sheaves to lift i ton, 3 and 2 sheaves.
2 snatch blocks with sheaves, brass bushes.
2 sets of differential blocks, each set to lift 2 tons three feet.
2 sets of differential blocks* each set to lift 1 ton three feet.
2 acts Of differential blocks,  ©ach set to lift i ton two feet.
4 wire rope slings assorted.
12 shackles assorted.
2 stretching screws 15"
4 screw jacks to lift 5 tons.
2 scr©?/ jacks of small size.
4 crow bars.
1 set of di© nuts all sizes up to l|"".
1 complete set of blading tools complete for all sizes of blading.
12 file scrapers with handles.
6 scrapers for brass with handles.
1 bow saw with dozen blades.
1 pair of tinsmith's shears.
1 pair of lamp scissors.
1 pair of ordinary scissors.
4 complete sets of condenser tools ccmplete.
1 oil stone in case*
4 pairs of pliers.
1 portable forge, fair size with fan.    '$$$$$$
1 complete set of Blacksmith's tools.
3 copper drifts.
12 shifting srpannoro,  3-8", 3-12", 3-16", 3*20".
6 Stilison wrench©s, 2-10", 2-_»6", 2-24".
Spanners in duplicate for ©very nut in th© ship.
2 tub© expanders for Scotch boilers.
2 tube expanders for each size of tub® of W.T. boilers.
6 steel drifts*
6 tub© caulkers*
6 caulking tools.
2 rivetting hammers.
1 holding-on hammer.
Die aut and tap for all sizes of stays.
6 tube scrapers.
40 tube brushes*
10 tube brush handles.
20 tub© stoppers complete*
10 patent tub© stopp©rs.
4 sets of tools for opening and cleaning burners.
Th© following gauges and templates to b© supplied:
fwo duplicate h®avy forged bridge gauges with clearance noted for each
turbine bearing.
Rod gauges for diameters of ©ach turbine bearing.
One Bridge Gauge; and those gauges are to b® fitted in- a t©akwood box.
Bridge and diameter gauges as above for gear case bearings.
Rod gauges for distances between shafts in gear ease.
Taper template of sheet steel for propeller boss.
Feather template for propeller boss.
On© gauge, steel plat©, to show wear down of ©ach propeller shaft.
On® shaft coupling bolt hole template.
Gauges as may be accessary for thrust blocks.
Bridge gauges for bearings of circulating engines.
1 spar© tail shaft for Port shaft,
1 spar© tail shaft for Starboard shaft*
1 full set of coupling bolts of each size fitted.
2 sets of pads for thrust block.
Full set of propeller blades for each propeller.
2 spar© propeller boss with nuts and studs eomplet©.
 - 24-
1 set of springs for safety valves of Scotch marine boiler.
2 sets of springs for safety valves of Yarrow boilers.
Tubes to complete on© Scotch boiler also on© W.T. boil©r.
Tubes to complete one next of air tubes*
1 complete set of boiler door joints for all boilers.
48 gauge glasses, and approved washers.
1 spar© combined check valve.
All bunker doors, etc.,  complete.
2 oversize shuttles and valves for ©very Weir's pump.
1 spare crosshead and 1 bottom end for all pumps.
1 spare set of valves for all pumps, both suction and delivery.
Turbin© blading - on© fortieth of ©ach size fitted (complete),
1 set of brasses for rotor bearings.
1 complete set of gland rings and springs*
1 complete set of packing screws*
2 bolts and nuts for ©ach size of rotor bearing.
12 spar© bolts and nuts for turbine casing joints*
1 complete set of hardwood packing sticks.
1 spare air pump bucket and valves complete*
1 spar© head valv© with valves complete.
1 spar© foot valve with valves complete.
1 set of bearing bushes for gear shaft.
1 H.P. and 1 L.P. pinion for turbin© gearing complete.
One half set of condenser tubes for on© condenser.
500 condenser ferrules for main condenser.
50 per cent,  spar© tubes for oil coolers.
25 per cent, ferrules for tubes of oil coolers.
1 set of cages for gravity filters*
1 dozen sets of filter cloths for same.
1 circulating pump impeller and spindle.
1 set of main bearing brasses for circulating pump,
The fans to hav© one spar© piston, with rings complete, on© spar© cross-
h©ad and one bottom end for each typ® of fan.
1 spare spring for each size of spring loaded valve inthe ship.
1 arm&tur©, 1 set of brushes and gear, 1 set of field coils for each
size of motor.
1 compl©t© set of heat©r coils and covers, or as required to suit
2 complet© sets of strainers for suction, delivery and burners.
1 complete set of thermometars.
13 spar© burners with tips complete.
100 spar© tips of smallest size in addition to six spares of ©ach other
Note:  All spar© gear must b© suitably placed arid securely bolted as and where
directed and well lubricated, as required*
All spanners must b© in suitable racks.
Th® whole of the machinery and boilers to be to best practice of the
highest type fhroughout and all fittlags, valves, etc, corresponding.
   _~r-  «s
6th DECEMBER 1928.
 November 30th, 1928,
The whole of the installation is to be in accordance with
Lloyd's Requirements, Class 100. A. 1.., and the Canadian and American
Government Regulations for a vessel engaged in this Service.
The vessel is to be propelled by twin screws, each actuated
by a quadruple expansion engine designed for a working pressure of
250 lbs. gauge; the revolutions, corresponding to 16^- knots on the
Measured Mile Trial, not to exceed 155 per minute.   Engines 15f",
23", 33" and 48" diameter, 33" stroke (or equivalent), balanced on
the Yarrow, Schlick & Tweedy system, and designed to run smoothly
over the range of working revolutions.  To have ample bearing surfaces, and to be of substantial construction throughout to ensure a
high order of durability of the working parts being obtained.   In
the design of details, special consideration to be given to accessibility and ease of adjustment.  Engines arranged for outward turning
when running in the ahead direction.  Valve gear designed to give an
H.P. cut-off of 67^ per cent "line In line", gear being overhung to
72 per cent, on which the maximum contract power is to be developed.
For extended periods engines will be worked at an aggregate I.H.P. of
1500.  Clearances to be specially considered with a view to obtaining
high efficiency.
Engines to be fitted with Brown's, or other approved type,
of direct acting reversing gear and independent air pumps to ensure
rapid and easy manoeuvring.  Starting and reversing gear controls
grouped to permit of both engines being conveniently handled by one
Engineer at the Starting Platform.
Steam for Main and auxiliary purposes to be supplied by four
single-ended Scotch Boilers constructed for a working pressure of 250
lbs., arranged to burn oil fuel only under Howden's system of forced
draught.   Boilers fitted with Air Heaters and Steam Driers,
For an appreciable period of the year, the vessel will be
employed on continuous service, necessitating one of the four boilers
being idle for cleaning purposes.  The boilers, and oil fuel and
- 2 -
forced draught installations, are to be designed to permit of the
maximum power being developed with three boilers.  During the last
hour of the eight hours' endurance trial, full steam is to be maintained in this manner.
Boilers, main and auxiliary engines, and steam and exhaust
piping, to be lagged in accordance with the best modern practice, as
specified hereafter,
A general arrangement plan of the engines, showing in
section the features of the design, with estimated loads and pressures
on the principal bearings, steam speeds through ports and passages,
details of clearance volumes, and valve diagrams, to be forwarded for
approval before details of the engine parts are submitted.
Both main condensers are to be arranged for condensing the
auxiliary exhaust in port, shut-off valves being fitted on each main
engine eduction pipe, and the auxiliary exhaust range piped to exhaust
into either condenser.
Three - 75 K.W. steam driven generators are to be provided,
arranged at the After end of the Engine Room, as described hereafter.
In addition to the trials specified in the Hull Specification,
a Basin trial of sufficient duration to demonstrate the satisfactory
functioning of all machinery is to be run.
All auxiliary machinery is to be constructed to withstand
full boiler pressure, but capable of full output with steam of 180 lbs.
par square inch pressure.
Extreme simplicity is to be aimed at in the arrangement of
machinery and piping, and the installation generally is to be in accordance with the highest mercantile practice, and the workmanship and
material employed the best of their respective kinds.   Photoprints, in
duplicate, of all details of machinery and boilers, with such exceptions
as may be agreed, are to be submitted to the Owners' Chief Superintendent
Engineer for approval.  Work done without obtaining this is liable to
be condemned.
The Contractors are to guarantee the efficiency of the
machinery in all particulars of design, materials, or workmanship, and
to make good., or pay for the repair of, any defects which may be
 - 3 -
observed within twelve months after the vessel is delivered, the cost
of such repair being limited to what same would cost if done or
supplied in the United Kingdom.
CYLINDERS.  To be of hard close grained cast iron - H.P. 15#" 1st
M.P. 23", 2nd M.P. 33", L.P. 48" stroke 33" (or equivalent).  All
cast separately, the 2nd M.P. and L.P. bolted together and secured by
forged tie rods to the H.P, and 1st M.P. cylinders.  H.P. and 1st
M.P. cylinders to be fitted with liners of special extra hard close
grained cast Iron 1-|" thick, the 2nd M.P. and L.P. cylinders being
made with extra thick walls to permit of reboring.  H.P. and both
M.P. engines to have piston valves; L.P. to have double ported slide
valve with approved type of balance cylinder.  Ports of approved
dimensions to be made as direct and as short a3 possible to reduce
the clearance volume to a minimum, all cylinder bottoms and underside
of covers being machined, and particular care taken in the design of
L.P. exhaust ports to ensure that the back pressure corresponds as
closely as possible to the condenser vacuum.   Subject to such modifications as may be found desirable in the development of the design, the
following steam speeds should not be exceeded -
H.P. Cylinder•- Port opening  =  100 feet/second.
1st M.P.    "       "    "     =  130    do.
2nd M.P.    "    -   "    "     =   150    do.
L.P.    "    -  "     "     n       190    do.
H.P. Cylinder - Exhaust = 85 feet-second.
1st M.P.  '  ii   „ n = 95    d0.
2nd M.P.    "    - " = 120    do.
L.P.    ii   .. ii = 140    do.
Cylinder bottoms and covers to be heavy and well ribbed, with inspection
doors in the 2nd M.P. and L.P. bottoms and covers.  Stuffing boxes on
all cylinders arranged for United States metallic packing.  Drain cocks,
operated from Starting Platform, with drains to condenser from the
lowest points of all cylinders; valve chests of all cylinders fitted
with "Macauto", or other approved make, automatic traps - all led to
condensers.  Relief valves of polished cast iron with, gunmetal fittings
on top and bottom of all cylinders and casings, with escape pipes led
to bilge.  Starting valves fitted to 1st M.P. and/or 2nd M.P. cylinders,
as may be approved following development of crank sequence diagram.
 - 4 -
Indicator gear to be fitted to all cylinders.  All cylinders to be
lagged with 85$ Magnesia composition 3" thick, covered with planished
steel plates secured on iron grounds by round headed brass screws,
and bottom of cylinders similarly lagged but covered by i" iron plates
painted white.  Cylinder and casing covers lagged similarly between
ribbing, and asbestos mattresses 2" thick to. cover the whole of
cylinder and casing covers.
PISTONS.  To be of the best mild cast steel of conical form, unless
for the purpose of balance it is considered desirable to make the H.P.
and 1st M.P, pistons of cast iron block form.  All pistons fitted
with an approved design of Ramsbottom ring of special quality cast iron..
Each piston to have not less than four rings, mounted in carriers well
fitted and secured to piston.  Lockwood & Carlisle or Restricted rings
of approved type, fitted to piston valves.
PISTON RODS.  All rods interchangeable, shouldered under coned piston
end, with brass nuts for piston and malleable iron nuts for crosshead
connection.  Diameter of rods 4-g-", of Siemens- Martin forged 3teel,
turned and ground perfectly parallel.
CONNECTING RODS.  Of Siemens-Martin mild steel, all interchangeable.
Length not less than 5'-6" between centres, with forked top end, having
double gunmetal bearing lined with white metal and caps of forced steel.
Crank pin bearings of gunmetal lined with white metal and caps of forged
CROSSHEADS & GUIDES.  Crossheads of Siemens-Martin forged steel secured
to piston rod by coned connection and nut; pins relieved on sides.
Shoes of cast steel of the single guide pattern, faced with white metal
on Ahead and Astern surfaces.   Recesses in shoes machined and tinned.
Ahead and Astern guide plates of cast iron bolted to inboard column,
proportioned so that the maximum pressure does not exceed 60 lbs. and
85 lbs. respectively; designed to facilitate withdrawal and lining-up.
VALVE SPINDLES.  Of Siemens-Martin forged steel, guided by brackets
bolted to the cylinder bottom, and fitted with adjustable gunmetal bearings.  The bottom ends fitted with adjustable gunmetal bearings to
take the link blocks.  Link blocks to be of forged steel fitted with
gunmetal slippers to 3uit the radius of the links.  United States
metallic packing to be fitted to all spindles.
 - 5 -
VALVE GEAR.  To be of the Stephenson type, with  eccentric rods and
links of forged steel polished all over.  Rods to be secured to
eccentric straps by studs left long to allow of rods being lifted;
each rod to have a forked top with two adjustable bearings to take
the pins of the reversing links.  The pins on the reversing links
taking the eccentric rods and the drag rods to be forged solid with
the link bars.   Drag links of circular section forged steel fitted
at each end with adjustable gunmetal bearings.   The ahead eccentric
rods to be in line with valve spindles.  The reversing levers to
be of forged steel with adjustable crosshead of the same material,
and marked for the various cut-off positions.  The reversing shaft
to be mounted on adjustable bearings fitted on columns and made in
two lengths.  The eccentric sheaves to have top halves of cast iron
and bottom halves of forged steel.  Eccentric straps to be of
forged steel lined with white metal.  Oil tight troughs of galvanised
iron to be fitted under eccentrics and provided with drains.  Suitable oil boxes to be arranged on eccentric and drag rods.
REVERSING ENGINE.  A Brown's direct acting reversing engine of
approved size to be fitted, with gear extra large, to ensure rapid
reversal.  Steam connection taken from the main steam pipes and
exhaust to condenser.
COLUMNS.  Each cylinder to be supported by two cast iron columns
of box section, secured to the cylinders and sole plate by turned
bolts, including an approved number of fitted bolts.   The columns
carrying guide plates to be arranged for water circulation behind the
ahead guides.   The outboard 2nd M.P. and L.P. columns to be made
strong enough to support main condensers on brackets.
BED PLATE.  Of cast Iron of heavy box section, with bearings of
approved length for crank shaft.   Underside of bed plate machined
and with well ribbed flanges all round outside and in crank pits,
bedded on cast iron chocks with an approved number and size of holding down bolts.  Spaces betv/een chocks to be filled with teak wedges.
Landing for Engine Room lower platform to be provided on sole plate.
Crank shaft bearings to be of cast iron lined with white metal, the
lower halves being made circular and slightly eccentric to facilitate
removal.  The covers to be of forged steel, with a hand-hole in each.
 - 6 -
CRANK SHAFT.  Built crank shafts of Siemens-Martin forged steel in
two interchangeable parts.   Crank pins not less than 10" diameter,
and journal not less than 9-jjf" diameter. Webs shrunk on each and
secured with two dowels at shaft and one dowel at pin.  Bridge gauge
to be supplied for all crank shaft bearings.
TURNING GEAR.  A single cylinder steam engine to be fitted of approved
size, with reversing gear.  Worm geared to cast iron machine cut
turning wheel made in halves, mounted at Aft end of crank shaft.
GOVERNORS.  Aspinall's patent governor to bo fitted to each engine.
LUBRICATING SYSTEM.  To be generally as follows -
Main Bearings   -  Syphon oil lubrication, with oil cups on bearing
caps .
Crank Pin bearings - Centrifugal lubrication supplied from syphon
cups on Main Bearing caps.
Crossheads, Guides & Valve Gear -  Syphon drip lubrication from oil
boxes mounted on sides of cylinder.
Eccentric Sheaves - Syphon lubrication from cups on Eccentric Rods.
Reversing Shaft   - Grease Cups.
All lubricating oil piping to be of brass, well secured.   Oil boxes
of cast brass, heavy pattern, provided with covers.
WATER SERVICE.      Provided from sea and General Service Pumps to
continually circulate guides.  Brass telescopic swivelling connections
to be fitted to crank pins and main bearings.  1/2" water cooling
connection to each tunnel bearing, and 1" connection to each stern
tube.  Water service piping of copper.
RECEIVER AND EDUCTION PIPES.  Of cast iron or lap welded steel as
may be approved, with adequate expansion arrangements.
MANOEUVRING GEAR. Reversing engine, starting valve and drain valve
control levers to be brought to a convenient position adjacent to main
engine stop valve control.
MAIN ENGINE STOP VALVES.     Cockburn's positively controlled
regulating, throttle and emergency valve or other approved type to be
fitted to each engine.
THRUST BLOCK.   Of cast iron, and of Michell pivoted type adjustable
in both directions.  Each designed to take a total ahead thrust of
about 30,000 lbs.  Thrust block housing to be bolted direct to facing
on after end of bed-plate and securely bolted to tank top on cast iron
 - 7 -
chocks at each holding down bolt, with teak wedges between chocks.
Bearing pads to be of cast iron faced with white metal, the pressure
on each not to exceed 200 lbs. per square inch and a rubbing speed of
16 feet per second.  Bearings at each end of block to have round
bottomed removable bushes lined with white metal   Lubricating
arrangement self-contained with cooling coil fitted.
SHAFTING.  Thrust, tunnel and propeller shafts of Siemens-Martin
mild ingot steel made by Darlington Forge, or other approved maker.
THRUST SHAFT.  To be a3 short as convenient.   9-J" in journals and
at bottom of collar.
TUNNEL SHAFTING.  9§" diameter, increased i" in way of bearings, and
finished bright all over.   Each coupling to have six wrought iron
bolts of 2-g-" diameter, having a taper of 1/32" in the length of bolt.
Friction strap to be fitted to one coupling on each line of shafting.
Galvanised sheet steel guards over all tunnel couplings.  Trailing
collar on aftermost length 1" clear of bearing, the latter having suitable facing.
PROPELLER SHAFT.  To be 5 per cent in excess of the diameter required
by Lloyd'3, fitted with a continuous gunmetal liner projecting at the
after end into the propeller boss, and at the forward end 6" through
the gland when just entered into the stuffing box.  Liner to bo |-"
thick in way of the forward bearing, |-" thick in way of the after bearing, and 11/16" thick between bearings.   Liners to be hydraulically
tested to 30 lbs. pressure after being finished bored and machined
externally.  Taper of cone 1" in diameter per foot of length.  Shaft
nut of wrought iron with approved type of stop.
TUNNEL BEARINGS.  Tunnel bearing blocks of cast iron of Michell patent
STERN TUBE.  Cast iron, with lignum vitae bearing not less than five
diameters long, with brass stern bush •^•"/thick under wood, machihed
all over with good flange and fillet at after end; wood f" in thickness.
' / "       X"
End grain wood in bottom half.of bush, each strip in separate recess.
Stuffing box to take 1^"- packing, with deep brass neck bush, and brass
lined gland, secured with brass nuts and studs.   Water service cocks
and pipes to,approval. . Tubes secured to frame by wrought iron nut
a' .
covered at after end with •§•" brass plate in halves, screw pinned with
 - 8 -
putty joints to prevent corrosion.   Close fitting rope guard of
cast steel fitted on after end of stern tube.   Tubes to be tested
to 50 lbs. by hydraulic pressure, and to receive two coats of
graphite paint before fitting.   Careful consideration to be given
to all points likely to facilitate withdrawal and replacing of
propeller shafts.
PROPELLERS.   To be of the built type, with cast steel boss, and four
blades of Manganese Bronze, arranged for adjustable pitch, made by
Messrs. J. Stone & Co., or other approved maker, having a yield point
of not less than 17 tons per square inch.   Tensile strength not
less than 34 tons and bending test angle 90 .   The blades and boss
to be finished all over in accordance with the best mercantile
practice, the quality of finish and the accuracy of pitch and balance
to be to the satisfaction of Owners' representative.   Position of eye
plates for handling propellers to approval.
CONDENSERS.  Two, of the two-flow Weir's wedge shape regenerative
design, each having a surface of not less than 10$ in excess of Weirs
design, and capable of maintaining a Vacuum of 27" with sea water at
60 F., when engines are developing a power corresponding to 16-g- knots.
Hotwell temperature to be guaranteed not lower than 2°P. below the
temperature corresponding to Vacixum.   Shell to be built of steel
plates ■§" thick and tubes of Admiralty mixture brass f" diameter, 18
L.S.G. thick, with ferrules of the same material slotted and not
screwed in way of slot to Owners' pattern.   Tube plates of Rolled
Naval bronze If" thick and packed with metallic ring and cotton cord,
the latter soaked  in boiled linseed oil.   Tube clearance in tube
plates not to exceed .005".   Centre tube supporting plate of brass
5/8" thick.   Deep cast iron water boxes with large observation panels
in each section proportioned and arranged to facilitate rapid access
to the tube plates.   An air cock to be fitted on the return end of
condenser.  All bolts and nuts of gunmetal where exposed to sea water
action.  Extra feed cocks fitted to both condensers from ballast
tank.   Steel protecting plates fitted on collar studs in each water
box.   Suitable valves on  each main engine eduction pipe to condensers
to permit of using them for auxiliary purposes in port.   Facings to
be provided on both condensers for silent Plow-off.   Three coats of
 - 9 -
approved paint to be applied internally to condenser shells and
vtrater boxe3.
AIR PUMPS.  Two Weir's Paragon Air Pumps.  Size 16" x 9" x 12".
To have cast iron pump chambers, with gunmetal liners, buckets, head
and foot valves, bucket valves and high tension brass pump rods.
Piston rods to have United States metallic packing.  Both air pumps
to be cross-connected.
CIRCULATING PUMPS.  Two centrifugal circulating pumps, one for each
condenser, by Messrs. Drysdale, Mathew Paul, or other approved maker.
Diameter of impeller 12".  Driven by an enclosed type compound engine,
having cylinders 5" x 8-|", and 5" stroke.  Each pump capable of
delivering 2300 gallons of water per minute against a total head of
25 feet at 300 r.p.m.  Engine designed for full boiler pressure, but
capable of performing maximum duty at steam pressure of 180 lbs. at
the stop valve.   Impellers and pump casing of gunmetal.  Impeller
spindles of bronze.  Emergency bilge connections fitted toPDOth pumps
and a full size cross connection fitted between pumps,
FILTER.  One combined gravitation filter and hotwell tank, of Carruthers'
or other approved make, arranged between Air pump discharge and feed
pump suction, and Hocking filter arranged with bye-pass fitted on the
discharge of auxiliary feed pump for use when the main filter is being
cleaned in port.
FEED PUMPS AND FEED SYSTEM.  Two Weir's, Worthington Simpson, or other
approved make of direct acting steam driven feed pumps.  Size ll|-" x 15-|"
x 24".  To have brass water ends fitted with separate gunmetal liners
and valves, seats and spindles of gunmetal.   Piston rods to have
United States metallic packing.  Each pump to draw from the hotwell,
sea, condenser^ reserve feed tanks and boilers, and to discharge to
boilers through main and auxiliary feed ranges via feed heater and
One auxiliary feed pump of Weir's, Worthington Simpson, or
other approved make.  Size 6" x 8fj" x 18".   Specification similar
to main feed pumps.  Arranged to draw from sea, hotwell and both
condensers direct, and to discharge through Hocking filter to main and
auxiliary feed lines to all boilers.
All pumps to be fitted with Direct Steam and Float Control.
 - 10 -
Feed piping to be of copper with gunmetal branch pieces
and valves.   Diameter 3f", and thickness two gauges in excess of
Lloyds requirements.  Feed lines between hotwell and feed pumps
and between feed pumps and heater3 to be covered with hair felt and
canvas, and between heaters and boilers with 85$ Magnesia 1" thick,
covered with wire v/oven asbestos cloth and mattresses over flanges.
FEED HEATER.  One surface heater, of Weir's, Holden & Brooke's, or
other approved make, fitted in the main feed line to boilers v/ith
bye-pass, capable of raising the total feed to a temperature of
230°F. when supplied with auxiliary steam from propelling auxiliaries
and generators.   Auxiliary exhaust connections so arranged that they
may be diverted from heater to main condensers.  Heater to drain to
gravitation filter.   To have steel shell, copper tubes and floating
cast iron header, and to be complete with all mountings and gauges.
Lagged with 85$ Magnesia and finished with planished steel covering.
service pumps of Lamont, Carruthers', or other approved make; to be
identical in material and design.   Size S" x 7" x 7", capacity 70
tons per hour.   The pumping arrangements are to be such that all
ship's services are adequately provided for, with cross connections
a3 may be found necessary, but in general they are to be arranged so
that one pump is mainly occupied on bilge and ballast duty, one pump
on the ship's clean services, i.e. Sanitary, Fire, Wash Deck Services,
etc., the third pump being arranged as a stand-by for the other two
pumps.   To have brass water ends, gunmetal liners and bronze pump
FRESH WATER PUMP.  Two vertical duplex pumps of Lamont, Carruthers',
or other approved make.   Size 6" x 4" x 6", having cast iron water
ends, gunmetal liners, bronze pump rods.  To pump from the fresh
water tanks or any ballast tank, and to discharge to the fresh water
tank on the Boat Deck.
HOT WATER CIRCULATING PUMP.  A vertical duplex pump of Lamont,
Carruthers', or other approved make.  Size A"  x 3-|" x 6".  With
cast iron water ends, gunmetal liners and bronze pump rods.   To be
 - 11 -
fitted to all dead ends of hot water circuits, and to discharge to
hot water tank,
REFRIGERATING MACHINE.   A C.O.g machine of Hall's make No. 7 or less
as may be arranged to be fitted In Engine Room as shown on guidance
plan.   All in accordance with requirements of Hull Specification.
GENERATORS.  Three generators, having two cylinder two crank compound steam driven engines of enclosed forced lubrication type.  Size
10" x 14" x Si".   Capacity 75 K.W. at 110 volts D.C., revolutions not
exceeding 500 per minute.  By W.H. Allen, Drysdale, Matthew Paul or
other approved maker.   To be placed at After end of Engine Room as
shown on guidance plan, and constructed to withstand full boiler
pressure of 250 lbs. per square inch, but capable of the maximum output with saturated steam of 180 lbs. per square inch.   Arranged to
exhaust either direct to condensers or Auxiliary exhaust range.  A
3team separator fitted at each engine, and engines to be complete in
all respects with tachometer and necessary fittings, including a
governor which will automatically maintain the speed within the
following percentage variations - 10 per cent momentary and 5 per
cent, permanent when the whole load is suddenly thrown on or off, no
adjustment being made by hand.
For specification of Dynamos see Electrical Section of Hull
MAIN STEAM SYSTEM.  A 4" main steam line from each boiler to connect
to two 5-f" lines leading to two bulkhead valves at Engine Room Bulk-
head, cross-connected on Boiloii- Room side of valves.  Piping to be of
3olid drawn steel, with flanges of forged steel, screwed and welded
on face to pipes.  Thickness of 4" piping - 11 L.S.G., and 5i" piping-
8 L.S.G.  All velves to be of cast steel.  Liberal expansion bends
fitted and adequate drain arrangements.   Pipes to be well supported
and covered with 85$ Sectional Magnesia, 2-|" thick for 4" pipes and 3"
thick for 5-|" pipes, and covered with wire woven asbestos cloth secured
by galvanised steel bands.  Flanges and valve covers covered with
asbestos mattresses 2" thick, and valve bodies by plastic Magnesia 2-|"
- 12 -
AUXILIARY STEAM SYSTEM.  Auxiliary steam connections fitted on all
boilers, with connection from the main steam range.   Control valves
to be fitted, permitting, the shutting-down of either Port or Starboard
side of Engine Room.   Steering engine to have a direct steam supply
from Port Forward and After Starboard boilers in addition to a connection from the auxiliary range.   Piping to be of solid drawn steel
for sizes of 4" and above, solid drawn copper for sizes below 4";
thickness two gauges in excess of Lloyd's requirements.   Valves and
fittings 3i|" and below to be of gunmetal; above this size of cast
iron, with the exception of the boiler stop valves which are to be of
cast steel.  All valves to have gunmetal fittings.
AUXILIARY EXHAUST SYSTEM.   The whole of the auxiliary exhaust is to
be arranged so that it can be led to feed heater, either main condenser or to waste steam, the necessary control valves on each condenser, heater and waste steam being fitted.   Piping above 4" to be
lap welded steel, below 4" of solid drawn copper.   All auxiliaries
to be fitted with an independent exhaust valve.   Steering engine to
exhaust direct to main condensers.
exhaust piping to be lagged with 85$ Magnesia equal in thickness to
half the diameter of the piping and covered with wire woven asbestos
cloth, and asbestos mattresses provided for flanges.
SEA SUCTIONS AND DISCHARGE VALVES.  All sea suction valves and cocks
on ship's side of 3" and under to be of gunmetal, and to be as few as
possible, consistent with good working arrangements.  Injection
chests of cast iron, fitted with gunmetal valves, seats, spindles and
glands.  V/alves and cocks to have spigot through shell plating, and
to be fitted with brass grids secured by pins of rolled Naval brass.
Main inlet valve chests to be kept as high up on turn of bilge as
possible and interiors coated with No. 3 Apexior, and steam weed
clearing connection fitted.
All waste water discharge pipes through ship's side are to
have valves arranged to open to internal pressure.   The chests are to
have spigots passing through the ship's plating, and gunmetal valve
seats, valves and spindles, and are to be arranged above the load
line, where practicable, except the main circulating discharge, which
 - 13 -
is to be below the minimum service draft.   Ballast pump discharge to
be about level of minimum service draft.   Discharge valves to be
easily accessible from the Engine Room.  Main discharge valves to be
sluice valves.   Other discharge valves to have bridges, and cottars
for holding them open.   Boiler and evaporator blow-down cocks on ship's
side to have white metal flange outside over spigot.   Cocks and valves
with R.N.B. or Muntz metal bolts screwed through the plate.   Arrangements for flexibility, either expansion boxes or bellows joints, to
be fitted between circulating pump inlets and sea chests, circulating
pump discharge and condenser, and overboard discharge from condensers.
Main inlet and discharge piping to condensers to be of copper,
SANITARY AND BILGE PIPING.  Of galvanised iron with galvanised malleable cast fittings.
DECK STEAM AND EXHAUST SERVICES. Straight lengths to be of solid
drawn steel with copper bends. All piping to be of copper where
exposed to weather.
BOILERS.  Four similar single-ended cylindrical boilers made of
Siemens-Martins steel for a v/orking pressure of 250 lbs. per square
inch;  the heating surface of each boiler to be not less than 2750
square feet (oil basis), arranged to burn oil under Kowden's system
of forced draught, with air heaters having tubes 7' 0" long, and surface not less than 1000 for each boiler.  Each boiler to be
15'-0" external diameter, 12'-3" long, with three Deighton furnaces
45" inside diameter, single riveted to three separate combustion
chambers v/ith -§•" dia. rivets.  Tubes to be of best wrought iron 2-|"
external diameter, with retarders in all tubes.   Plain tubes 8. W.G.
thick.  Combustion chamber wrapper plate rolled in one piece
thickened at bottom.   Shell to be in two plates with longitudinal
butt straps arranged in steam space clear of combustion chamber stays.
All interior surfaces to be coated v/ith one coat of Apexior during
construction and one coat after hydraulic test.   Air heater tubes
2f" outside diameter 13 L.S.G. thick.   Seatings to be constructed of
steel plates and angles •§•" thick, fitting clear of all boiler seams.
Athwartship girders to be built up continuous v/ith ship's floors.
 - 14 -
Athwartship angles for each pair of cradles to be continuous in way of
tank top landings and joggled over same.   Girder plates to be fitted
to the heel of the bearer angles, and afterwards chipped flush.  Fore
and aft brackets to be fitted to the cross girders as may be required,
Portable wrought iron fore and aft chocks are to be fitted at the
boiler ends, consisting of vertical double angle bars riveted to a
plate bracket, and double foundation bars riveted to tank top, but
bolted to bracket plate for facility of access to boiler and seams.
Vertical angle bars of chocks to be made a fit on radius on boiler end
plate.  Smokeboxes and uptakes, to be of No. 5 W.G. thick v/ith air
casing plates ■§" thick.  Smokebox doors to be fitted v/ith inside and
outside baffle plates, carried on thimble studs, hinge pins of brass
1" diameter.   Each door to be hinged in the usual way, and in
addition the centre doors to be hinged 2 feet from the bottom.  All
doors fitted v/ith Silley's or other approved fasteners.   Small door
to be provided on each wing smokebox door for clearing soot.   Ring
bolts to be fitted as required to each door for lifting, and chain
and pulley gear for suspending doors v/hen required.   Sliding joints
fitted for expansion of uptakes.   Outer (air) casing plates f" thick
with 3" air space throughout and uptakes generally to be screened from
weather v/here exposed in fidleys.   Cleaning doors to be fitted one
forv/ard and one aft in each uptake; hinged doors on inner plates.
Division plates to be fitted in uptakes i" thick, suitably stiffened
with tee bars, one for each boiler front and to be carried up to the
base of the funnels.  Air trunks to have riveting close enough to
prevent plates buckling between rivet holes through rust;  top and
bottom plating 3/16" thick, sides i" thick.   Dampers to be fitted
in air trunks to approval.   Access plates to forced draught trunks
to be fitted at top of same and bolted on.
INSULATION.  Boilers to be covered round the whole of their circumference and as far as possible on the exposed portions of the end
plates with 85$ Magnesia to a minimum depth of 3§" applied in the
shape of blocks or slabs fitted closely to the plating; an outer layer
of plastic magnesia of a minimum thickness of •§•" applied as a finishing
 - 15 -
coat and the surface levelled off.   The whole of the magnesia
covered v/ith galvanised sheet iron, 16 L.W.G. thick, carried right
round and secured with galvanised bands 2-g-" v/ide, 14 L.W.G. thick
and pitched 24" apart.
MOUNTINGS.  Safety valves of Cockburn's high lift type with Admiralty
gunmetal valves and seats, drains led to auxiliary hotv/ell tank.
Easing gear to be operated from stokehold floor.   Stop valves to be
of cast steel of the screw lift type with gunmetal valves and seats,
and forged naval brass spindles.  Alexander's "Supreme Vortex" Steam
driers to be fitted.  A main and auxiliary feed check valve v/ith
independent shut-off valve to be fitted to each boiler.  Chests,
valves and seats of Admiralty gunmetal, spindles of rolled naval
brass, springs of phosphor bronze.  Valves to have external screws,
operated from stokehold floor.  Each boiler to be fitted with two
gunmetal v/ater gauge pillars, mounted with Dev/rance ' s or Hopkinson's
asbestos packed cocks, suitable for f" glass, and having ball
automatic shut-off in upper and lower arms.   Suitable gear for
operating cocks from stokehold floor to be fitted.   Gunmetal  shut-
off steam and water gauge cocks asbestos packed, to be fitted on
shell.   One surface and one bottom blow-down valve of the non-return
type fitted to each boiler; chests of gunmetal, valves and seats of
Admiralty Gunmetal spindles of rolled naval brass.  Valves to project a sufficient distance from shell to permit of easy operation.
Pumping out and circulating connections to be arranged in conjunction
with bottom blow-down valves.  A salinometer cock flanged to shell,
pressure gauge cock and air cock, all of Dewrance's make, asbestos
packed, fitted to each boiler, also 2" drain plug, of Monel metal.
Pressure gauges for steam, oil and feed lines fitted as required.
Filling pipe from Deck, 2^" bore, with hose connections in suitable
position.  An approved number of zinc plates to be fitted in each
FORCED DRAUGHT FAN.  One, of Howden's or other approved make, capable
of delivering 22,500 cu, ft. of air per minute to the burners at l|r"
W.G. pressure.   Fan of the double inlet type, driven by tv/o enclosed
type compound engines.   One working and one standby.  Cylinders
 - 16 -
5" x 8-f", by 5" stroke.  Engines to be interchangeable In all details
with the main circulating pump engines.   A complete system of
trunking to air heaters, with dampers, so that any one boiler can be
completely shut off.   Engines and fans complete in all respects v/ith
pressure and air gauges.
OIL FUEL INSTALLATION.  By Wallsend-Howden, Todd, or other approved
make, to be thoroughly up-to-date in all particulars of construction
and design, embodying the latest features of oil burning practice.
Burners and air distributors to be designed to secure high efficiency
and smokeless combustion under stable conditions of steaming.   To be
made as a self-contained unit, comprising two heaters, duplex suction
and discharge strainers, and three Weir's latest type steam driven
rumps, with oil pressure control and all requisite mountings.  The
capacity of each pump to be 25 tons per day, and the capacity of each
heater to be 50 tons per day.  An approved make of lighting-up heater
with hand pump to be supplied.   All necessary thermometers and pressure
gauges to be supplied.
OIL BUNKERS AND SETTLING TANKS.  All to be of special construction
as per Hull Specification.    Cofferdams to be arranged, if possible,
at ends of side bunkers and wells for oil bilge drain situated in
cofferdams.   Ventilation and overflow pipes on lines of approved
latest practice, and manholes arranged for ready access to bunkers for
inspection.  No gauge glasses to be fitted on oil bunkers.   Oil
level indicators of the "Pneumercator" type, or other approved, to be
fitted to all tanks.
Thermometer to be fitted on all bunkers.   Arrangements to
be made for draining water from bottom of tanks by syphon valves
opening against the pressure and fitted with locking gear.   Drip pans
fitted below valves.   Heating coils of solid drav/n steel, 2" bore,
to be fitted in all bunkers and tanks in way of suctions.   Heating
pipes in tanks to have heavy flanges screv/ed on and welded at face
and tested to 500 lbs, per square inch.
Suitable connections for attachment of portable metallic
hoses to be provided for steaming out all oil fuel tanks.   Hoses to
be two in number and of suitable length to enable the operation to be
readily performed.  Locked valves with hose caps to be fitted in
- 17 -
approved position on tanks, also similar valves on the auxiliary range.
All valve3 to be of gunmetal and tested to 1-| times boiler pressure.
Suitable stowage to be provided for metallic hoses.   Stokehold flooring plates to be left 12" clear in way of oil bunkers, for observation,
and to see that suctions are clear.  A 9" coaming to be fitted on
tank top, parallel to and in way of oil bunkers, to be led to cofferdam or bilge wells for leading any oil which may accumulate to pump
suction and to prevent oil spreading over stokehold.   No steam pipes,
water pipes, or scuppers, to be led through oil bunkers.   Position
of oil wells to approval.
OIL SUCTIONS, and FILLING PIPES.  Sluice valves of the quick shut-off
type of Turnbull's, Blakeborough's, or Cockburn's make, for suction
and filling purposes, to be fitted on bunkers, with suitable emergency
operating gear led outside boiler compartments.   Suction and filling
pipes to be of lap v/elded steel with approved type of jointing.   Small
3uction pipes of solid drav/n steel.   All suction pipes to have easy
bends.   A 2" connect: on will be fitted to discharge at ship Ps side
both Port and Starboard, with American fittings and cap to supply any
other ship with oil if required.   These pipes to be placed where
directed on Main Deck..
FUNNELS.  Three funnels; position, height and rake of outer funnels
to be as shown on Shipbuilders' Contract plan.  Circular inner funnels
of 7'-0" diameter for the working funnels over boilers, divided into
two up to the top, making an independent funnel for each boiler.
Thickness of inner funnels |-".   Outer funnel -J" for the lower course
to a height of 12'-0" above main deck, and 3/lC" plate above.   All
flush riveted with mouldings to approval.   Bracket stiffeners of
suitable design to be fitted between inner and outer funnels.   All
necessary shackles, blocks, stages and cleats to be supplied for
cleaning and painting.   Strong eye bolts to be riveted to funnels for
WHISTLE.   A large bell steam whistle fitted to forward funnel of such
size and volume as to require a 3" supply pipe, and of a type giving a
sharp powerful blast.   Whistle platform and ladder fitted as required,
and an Alexander Vortex Drier or trap fitted at the base of the v/histle
 - 18 -
pipe to keep whistle v/ell drained.   Steam supply from Auxiliary range
and direct from two boilers.
OBSERVATION TANK.  To be provided in Boiler Room to receive drains
from heating coils in bunkers, with an approved type of filter fitted
in tank.  Switch cock to be fitted with discharges to auxiliary hot-
well tank or bilge.
SLUDGE TANK.  To be fitted in Boiler Room, of 30 gallons capacity,
with filling funnel, oil strainers, gauge glass and draw-off cock.
STEAM HOSE.   Connection in Engine Room and in each Stokehold to be
fitted for 1" steam hose, with 50 feet length of flexible steel steam
hose for each connection, with all fittings and nozzles complete.
FIRE PROTECTION.  Fire protection of the Lux system, or other approved
type, to be installed in stokehold, also throughout the whole Main
Deck where cars are handled.   To be complete in every respect.  Fire
extinguishers, 2-g- gallon capacity, to be supplied as and where directed
throughout ship, also one quart Pyrenes .  Say six 2-g- gallon extinguishers, and one dozen Pyrene.
SAND BOXES.  A 2 cwt. Sand Box to be provided in Boiler Room, and
the necessary trays at each boiler front.
STEAM HEATING.  Steam heating throughout ship to be supplied from the
auxiliary steam line through an Auld reducing valve.  Piping to be
of copper with brass fittings.  Each room to have heaters, v/herever
located.  Returns from heating system to be arranged as far as possible
to avoid traps, and to drain to hotv/ell and condensers.
VENTILATION.  Four 3'-0" diameter (or equivalent) ventilators to be
led down to an approved height in Stokehold.  Four 2'6" diameter
(or equivalent) ventilators to be led down to Engine Room to approved
height and position.  All ventilators fitted with cowl heads, v/ith
turning gear operated from a convenient level.   Cowls supported by
pivots with rollers to secure easy working.   The tunnel to be ventilated by an approved number of goose neck vents at ship's side.   The
tunnel escape hatch is also to be regarded as a ventilator.
TELEGRAPHS.  To have two reply telegraphs of Robinson's, or other
approved make, fitted from the Engine Room to tv/o on the Bridge and
one in Wheel House.   All stands and dials are to be brass throughout
and having electric lamps fitted.  All wire, chain, pulleys and
 - 19 -
turn-buckles necessary to ensure a complete job to be fitted and in
such a manner as to avoid all bends possible, and where bends are
necessary, these to be as easy as possible.   All the casing enclosing
the telegraph leads to be made readily accessible.
SPEAKING TUBES.  Speaking tubes to be arranged from Engine Room to
Chief Engineer's Room, from Engine Room to Stokehold with bell calls
and replies fitted throughout.  Also Graham Navy Phone to be  fitted
in Engine Room to Bridge as stated in Hull Specification.
OVERHAULING GEAR.  Substantial overhead beam over engine with two
travellers, two long shackles and rollers, necessary 3crev/s and gear
for lifting cylinder and casing covers, valves, pistons, etc., and
all necessary brackets, beams and tackle for general overhauling and
hanging up of machinery for survey supplied and fitted to Owners'
satisfaction.  Racks for all spanners, eyebolts, firing tools, etc.
Boards and staging for cleaning tubes of main boilers,  funnels, etc.
LADDERS AND GRATINGS.  Carefully arranged to give convenient access
to all parts of boilers, air heaters, all main and auxiliary machinery,
pipe joints, valves, etc.   Platform to be open in front of boilers,
giving easy view of space below boilers, gutterways, etc.   Platforms
to be of portable chequered steel plates, thickness 5/16" under the
chequer.  Foot guards and hand-rails round all auxiliaries and gangways.  Ladders, with spar gratings, to be fitted in Boiler Room.
Engine Room ladders to have steps of cast iron polished on the edges,
SUPPLY TANKS.   2 Oil Tanks of 200 gallons capacity, and 3 of 100, 60
and 50 gallons capacity respectively, to be supplied and fitted in
approved positions.   Also, two sets of three-compartment tanks of the
usual type and construction, arranged in Engine Room.   A v/aste tank
of sufficient capacity to hold two bales of v/aste.
ENGINEERS' STORES.  To be fitted up in tunnel as described in Hull
Specification.   To be complete with shelves, lockers, drawers, etc.,
for Engineers' tools and small stores.  The upper half sides to be
of expanded metal for light and ventilation.   To be of steel throughout and to include a bench covered with sheet lead for lamp trimming.
Bars and hooks to be provided for hanging up articles much In demand.
Locks or padlocks to be fitted to lockers intended for stowage of
v/aste and brass.
GAUGES AND MOUNTINGS.  Chadburn's type of five-figure counters to
be fitted on main engines in approved positions near starting platform.
Teak gauge board arranged at starting platform to approval, v/ith 7"
gauges for Boiler main steam, Engine Room main steam, all receivers,
Vacuum and feed pressures.  A 10" clock of approved make to be
mounted on this board.
SKY LIGHTS.  Skylights to be fitted with screw gear controlling them
from the Engine Room platform.
PAINTING OF ENGINE ROOM AND STOKEHOLD.   The whole of the Engine Room,
Boiler Room, bulkhead and casings therein, to have three good coats of
paint of approved colour in addition to the priming coat; this includes
the skylight trunk in Engine Room, overhead decks, etc., and to have
enamelled finish where directed.  All varnishing required to be
executed in first class manner.  All pigments and oils used in the
paint must be the best procurable.
PACKINGS AND JOINTINGS.  All steam and water packings and jointings
used throughout the ship are to be of quality selected by Owners.
Cast Iron for cylinder liners to conform to the following analysis -
Carbon between 2.75$ and 3.15$
Silicon " 0.85$ and 1.25$
Phosphorus  "  0.65$ and 1.05$
Sulphur and Manganese to be present in such quantities and proportions
as will produce a non-porous tight grained metal to pass the following
tests -      Tensile strength 11 tons per square inch minimum; bending
test 2000 lbs. on a bar 1" square and 14" long, between supports 12"
apart.  Castings to be v/ithin •§-" of approved thickness.
Steel Castings to be made by an approved maker and thoroughly annealed.
Forgings  to be made by an approved maker and thoroughly annealed.
Gunmetal.   All gunmetal parts subject to wear or pressure to be made
of 88$ Copper, 10$ Tin and 2$ Zinc.
White Metal to approximate closely to the following analysis -
Copper 7 to 2$.  Antimony 8 to 9$.  Remainder Tin.   If patent metal
is used, maker to be approved.
Copper pipes.  Copper used in the manufacture of pipes is to be new
and to assay not less than 99.3$.   Pipes made by the electro-depositing
 - 21 -
process are not to be used.
Flange standard.  All flanges to be to the appropriate British
Engineering Standards Committee table for Marine work.
PLANS.   Two sets of "As fitted" plans on linen of the Main and
Auxiliary Machinery and Boilers, including all details and piping
arrangements, to be supplied.
Spare Gear as required by Lloyd's, to be supplied if not
listed below -
1 Cast Steel Propeller boss complete with 3tuds and nuts for each
1 Full set of Bronze Propeller blades for each propeller.
2 Tail Shafts complete.
1 Complete set of coupling bolts.
1    "    "   " Tunnel Block pads for one bearing,
1 set of Main Thrust Block pads.
1 Piston Rod complete.
1 Valve Rod of each size complete.
1 set of Top and Bottom Connecting Rod Brasses.
2 sets of Eccentric rod bushes.
1 set of valve spindle guide bushes.
2 complete sets of Metallic packing spares for Piston and Valve Rods.
2 Eccentric Rods and straps complete (1 Ahead and 1 Astern).
2 Bolt3 and Nuts for Connecting Rods (Top)
2  "   "    "   "      "     "   (Bottom).
2 Bolts and Nuts for Main Bearings.
1 Reamer for coupling bolts.
2 set of Piston rings for each size of piston and piston valve fitted,
1 spare spring for each size of cylinder Relief Valve.
1  " '.    "   "  "  Boiler Safety Valve.
1  "     "   "  "   size and kind of other escape valve.
24 studs (comprising each size) for Junk Ring.
100 Miscellaneous Bolts and nuts of brass (turned and assorted).
100      "        "   "   "  " iron (   "   "     "-■)..
 - 22 -
1 spare valve and spindle for Main Engine Stop Valve.
50 Condenser tubes.
100   "    ferrules.
1 Pump rod with nut.
1 Delivery valve seat with guards.
1 Bucket with guards.
1  set  of  valves   (metallic)   for one pump.
1 Piston and rod with slipper, etc. complete, of each size.
1 pair of bushes for connecting rod.
2 Bolts and nuts for   "       "
2 pairs of bushes for crank shaft.
1 Valve spindle of each size.
1 Eccentric strap and rod of each size.
1 Impeller with bronze spindle.
1 Set of suction and delivery valves and seats, of gunmetal for one
pump of each size.
1 piston rod and pump rod complete of each size.
1 set of steam piston packing rings for one pump of each size.
1 set of Pump piston    "     "   "  "   "  "  "   "
1 shuttle Valve and chest for Weir's feed pumps of each size.
1 set of metallic packing spares of each size.
1 set of suction and delivery valves and seats for one pump.
1 piston rod and pump rod, complete.
3 sets of steam piston packing rings for steam piston.
3 sets of Plunger Packing rings.
1 set of suction and delivery valves and seats of gunmetal for each
1 set of Piston and Plunger Rings.
1 complete set of cages and filtering medium.
 - 23 -
1 stay tap for each size of screwed stays.
6 feed check valves for boilers.
50 plain tubes for boilers*
10 stay tubes for boilers.
6 bolts for manhole doors.
1 set of joints for the manhole doors of one boiler.
1 sheet steel template for each size of boiler manhole -door.
50 gauge glass tubes for boilers.
50 Woodite rings for boilers.
1 complete set of Heater coils.
1    "    "   " Strainer parts.
1    "    "  " thermometers.
12 spare burners.
100 spare tips of smallest size, in addition to six spares of each
other size comprising a set.
1 Piston and Rod of each size.
1 Connecting Rod complete of each size, with top and bottom brasses
1 Pair Main Bearing brasses of each size fitted.
1 Valve spindle of each size.
1 set of Eccentric straps complete.
2 sets of Piston rings of each size.
12 spare heater tubes.
All spare gear to be suitably stowed and secured to approval, and
well protected against deterioration.
One Bridge Gauge for Main Bearings.
Steel Plate cone and Feather template for Propeller.
Blade Flange template.
Shaft Coupling Bolt template.
 - 24 -
1 teakv/ood lock up desk.
12 oil cans quart size.
12 oil feeders .
2 oil funnels.
1 gallon oil measure.
1 g- gallon oil measure.
2 brass cocks for oil barrels.
6 glass salinometers.
1 Standard Salinometer.
2 copper pans for Salinometers.
4 thermometers in copper case.
12 oil lamps for engine room.
1 oil lamp at one gauge glass on each boiler.
4 oil lamps in tunnel.
4 safety lamps.
2 dozen electric hand torches, v/ith batteries complete, and.
one dozen spare sets of batteries.
2 brass syringes.
6 log slates.
1 Bulkhead plumb bob for indicating list.
6 galvanised water buckets.
12 scrubbing brushes.
2 dozen assorted paint brushes.
12 swabbing brushes.
200 assorted bolts and nuts.
2 sheets of Kinghorn metal.
2 ratchet braces.
2 crank braces.
2 breast drills.
1 drill post.
36 drills assorted (twist).
1 pair of outside calipers to take 24".
 - 25 -
1 pair of inside calipers to take 18".
2 steel straight edges, one 2'-0" and one 4'-0" long,
1 cross cut saw.
2 axe s.
1 jack plane.
6 screw drivers.
1 gouge chisel.
3 wood chisels.
1 set of wood brace and bits with extension bits complete.
2 trowels.
1 box of taps and dies from ■£" to 1^-" Whitworth.
1 set of pipe taps, adjustable dies, and all stocks from •
i" to 2", American standard.
2 pairs of eyebolts, £", f", f", £", 1", li", li" diameter.
2 tail vices, each about 90 lbs.
2 vice benches with drawers.
2 hand vices.
9.  pair of lead vice grips.
6 steel wedges assorted.
18 files assorted with handles.
4 raised file handles.
1 dozen hand hammers.
2 copper hammers, 6 lbs.
2 lead hammers, 6 lbs.
2 dozen assorted chisels.
6 beam grabs.
1 face plate 12" by 24".
2 pairs of iron blocks with brass sheaves to lift 2 tons, 3 and
2 sheaves.
2 pairs of iron blocks v/ith brass sheaves to lift 1 ton, 3 and 2
2 pairs of iron blocks v/ith brass 3heaves to lift § ton, 3 and 2
2 snatch blocks with sheaves, brass bushes.
2 sets of differential blocks, each set to lift 2 tons three feet.
2 3ets of differential blocks, each set to lift 1 ton three feet.
 - 26 -
2 sets of differential blocks, each set to lift -g ton two feet.
4 wire rope slings assorted.
12   shackles  assorted.
2  stretching  screws  15".
4  screw  jacks  to lift    5 tons.
2 screw  jacks of  small size.
4 crow bars,
1  set of die nuts  all sizes up  to 1^".
1 oom]ini1_p»foii«iBieAi'i of  blading  tjao-o   oomploto   for' oil "e-i»&^a^^
blading. SW_^
12 file  scrapers v/ith handles.
6 scrapers for brass with handles,
1 bow saw with dozen blades.
1 pair of tinsmith's shears.
1 pair of lamp scissors.
1 pair of ordinary scissors.
4 complete sets of condenser tools complete.
1 oil stone in case.
4 pairs of pliers.
1 portable forge, fair size with fan.
1 complete set of Blacksmith's tools.
3 copper drifts.
12 shifting spanners, 3-8", 3-12", 3-16", 3-20".
6 Stillson wrenches, 2-10", 2-16", 2-24".
Spanners -  A complete set of single-ended spanners, special
and skeleton v/here required, for all parts of machinery, and
four sets for bolts under 1^-" diameter are to be supplied.
One large spanner to be supplied for the propeller shaft nuts,
and one for the stern tube nuts; also two sets of the necessary
spanners for the boiler manhole doors.   Steel racks for the
spanners to be supplied.   All special spanners to have the
part of the engines they suit stamped thereon.
2 tube expanders for Scotch Boilers.
6 steel drifts.
6 tube caulkers.
6 caulking tools.
2 riveting hammers.
1 holding-on hammer.
 - 27 -
Die nut and tap for all sizes of stays.
6 tube scrapers.
40 tube brushes.
10 tube brush handles.
20 tube stoppers complete.
10 patent tube stoppers.
4 set3 of tools for opening and cleaning burners


Citation Scheme:


Citations by CSL (citeproc-js)

Usage Statistics



Customize your widget with the following options, then copy and paste the code below into the HTML of your page to embed this item in your website.
                            <div id="ubcOpenCollectionsWidgetDisplay">
                            <script id="ubcOpenCollectionsWidget"
                            async >
IIIF logo Our image viewer uses the IIIF 2.0 standard. To load this item in other compatible viewers, use this url:


Related Items