texas south-eastern railroad company locomotive 10 builder ... · fire-door opening formed by...

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T H E

PHILADELPHIA, ,'7- HPH

11, 1 11 .

Clas:-. 1 SPECIFICATION NO. B- 002 I )rawing No.

Of ;1 . eel:> I,OCOlJlutivt' Engll1t' having thr .pairs n1

coupled wlwt'ls :lI1J ,1 four wheeled truck

fo r tile RAILno

This specification Jl]}I~' be Jesign:ded in cabling by (ode word

Type gent'r :lI lv illll,.;trat ed by

GENERAL DlMENSIONS ._-------,------_.- -----_._-----

Cyli"d <:T~

Dri ven.; , l)j c:H lI ~h:t 5 Hoih-r, Di:t11JeiPr

Fin' H"" J.

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111". 1'11,,1 So t G J. Whet,l 11«·;.',

Di". 1 '" 111~. 8trok~ ~ ~ 1m;,

In:"!. \Vork ing- Pn's:-,nrv ... V Jibs.

'. "1f . III". 'J'vpe

III". LOllg 1./ .. Ius, Wid"

,,~ Ilia. ,,), llls. ],eJlgtlt 1·' FI,

lIe"till~ Stlrf" l" · {H ppJ('~lllJ"k, I li;n: Hox ~<1.Fl.

Tn b,-,,_---=l='-""'.:..( ..:."..;.7 __

Total.

1 6 .Ft.

Fl.

F.

Total ElIg-illl 1 Lbs.

TNlIk, 11 J,bs.

'.557 , .. 1,1>". Rali" "I -\dhl"siOll

J.

Ill".

1,1:-1.

) 111 ( Work( ill <f

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;. nil :-0'1. I't. Rallo to lI ea tillg- B u rt'al"', I too 76 \Vater C"paCilY

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Headlight

Power Brake

C ouple r"

team Heat

Limiting r:ond itions

~t· 01

1 ,

.on

loctr l t. , i 'h 18' l' "1'..:- n

n nd t !Hl. i.'" .

S:lndt'r,

Scanned from an original at The History Center, Diboll, TX www.thehistorycenteronline.com 1993:022

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Boi ler

Dome

T ubes

F ire- Box

Stay-Bo lts

Crow n -Sta ying

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DETAILS OF CONSTRUCTION

Made of plates of homogen eous stee l for a pressu re of puunds per square inch,

and test ed with steam to at least 2 0 pounds per square inch above the boiler pressure, and with

hot water to one-third above the boile r pressure.

W aist 6 inches in diameter at smoke-box end, made ex nd

one elome placed ... fo of fir - bolt. : Waist pl:l.tes · 5/8& 11/1 .inch

A II longitudina l seams... utt .. joint d, i th . oubl o.ov~r1n strt . . ............... .

All bo iler and fire -box seams cau lked inside and outside where possib le. All holes reamed

perfect ly true afte r sheet s a re put together, ho les s lightly counte rsun k on inside and outside edges.

No hand riveting permitted except ~here it is impossible to use power riveters. All caulking edges

of plates planed where possible and caulked w ith round pointed cau ll<ing tool, insuring plat.es against

injury by chipping in cau lki ng with sha rp-edged tools. All boi ler brace jaws drop forged, with

holes drilled. All rivet and pin ho les in braces to be drilled. All jaw-pins to be turned to give

full body bearing on both sides of jaw, and to be held in position by nut, washer and cotter-pin

All T-irons fas tened to the interior of boil er- shell to be machined accurately to fit the radius of boiler.

Tube-sheets to be thorough ly annealed and tube-holes accurately rea med to gauges; sharp corners

carefully rounded to avoid cutting tubes in setting.

Throat-sheet of sufficient thickness to prevent undue tllinnin g where flanged. All parts well

and thoroughly stayed. Line rs on inside of side sh eets, providing double thickness of metal for

studs of expansion braces, if side sheets are less than nine-sixteenths of an inch thick.

Dome-ring to be of seamless open-hearth forged steel, turned and accurate ly fitted to the

in te rior of dome-sheet before being drilled and riveted. Dome-cap to be of forged steel. Dom e

base to be of seamless open-hearth forged steel, fl anged and radia lly planed to fit the outer she ll of

boiler. The interior bored to receive the body-sheet of dom e. All rivets connecting dome to boiler

to be driven by hydraulic pressure.

Of ... ....... . .. ....... It.on ............................. No . ...... 1 ............ wire ga uge , with

copper ferrul es and swaged at ends in fire-box tube sheeL.. .2B .... .in number ... .. inches

in d iameter, and. 1 .. ..... .feet..... s ......... ..i nches in length.

To burn of-t 0 1 107 /4 inches long and ... 3 .l/a .... .inches wide inside; of homogeneous steel, a ll flanged

plates th oroughly annealed after fla nging; side sheets .. S./l. .inch, back sheets ... 5/16 . .inch, crown

sheeL.3/S ... .inch thick, flue sheet l./.2. .... ..i nch thick . W ater space ... 3 . inches side and back,

....... ..inches fro nt. Outside and inside su rfaces of water space-frame, agai nst which the sheets

of the fi re-box and outer she ll a re riveted, to be mach in ed smooth and fitted to gauges . Wate r-

space fr ame.. i 10. ... __ .. . ....... riveted .

Stay-bolts of iron, screwed and riveted to inside and outside sheets. All side stay-bolts to

have three-six teenth-inch hole, one and one-quarter inches deep from outside to indicate when

broken in service. All stay-bolt threads turned off between sheets.

Fire-door opening formed by flanging and riveting together the inner and outer . heets,

except on small engines. TOOl-guard to be cast on lower part of fi re-door frame.

Fi re-brick arch .... ... 8U. .portod on ... s.twtS .• ...... ......... Crown-sheet supported

side sheets, and stayed by braces to outside of boiler. Crown-she rown-bar bolts w ith

h e3.d on under side of crown-sheet; or,

By .J. -bars a supported by braces from outside shell of boiler. The crown-sh eet

By radial stay-bolts screwed th rough crown-sheet and roof of boiler, and riveted over.

Centra l rows with heads below crown-sheet OJ) ,wjlers p in ches dia meter fwd lar~et: Provision to

be made fo r ve rtica l expansion of fi re-box tube-sheet, if diOll+l itil r of II r ", iit iii' 10 ipc h e 5 or over

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Cleaning Holes

Steam-Pipes Throttle- Valve

Grates

Ash-Pan

Smoke-Stack

Smoke-Box

Frames

Pedestals

Engine Truck

Wheels

Axles Springs

Cylinders

Pistons

Packing

Guides

Crossheads

Valve Motion

Driving Wheels

Tires

Axles

Driving-Boxes

Springs

Rods

Oil Cups

Wrist-Pins

Feed-Water

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Cleaning plugs located where necessa ry for proper cleaning of boi ler.

Of iron, in smoke-box . Dry pipe of wrough t iron or steel, inside of boi ler. Balance poppet throttle-valve of cast iron, in vertica l arm of dr y pipe.

.... ........ Oo.~t b .. and .. 4r

With

.......... tr ht (01 1 ... 3

t .

) . ...... I t , ru:l d,. lth n tUn I '1" '" . ap h p r ... ....

Of .... 0 t .. 1. securely braced and prov ided with front and back lugs for

cy linder connections. Pedestals in one piece with main frames, and protected from wear of boxes by cast-iron

gibs and wedges. Pedestal caps fitted and bolted to bottom of pedestals.

Centre-bearing swiveling ... four ...... wheeled truck .... t .front ............................. .... . Truck frame of wrought iron or cast steel, well braced; fitted with SllliQ~iQ~ holster

Qf IIIitM fixed centre bearing.

t ... iron.. okec ... 1r ... ... .wheels ....... 28 .......... inches diameter.

Of hammered steel, with journals ... 5 Of steel, tempered in oil.

. ..... .inches in diameter and ... 10 ....... ..inches long.

.... uppl. nt.

High pressure cy linders ...... 1 ... ..inches diameter and ... ... 26 ....... inches stroke.

Low pressure cylinders ...... ~ ....... inches diameter and .. _ .... .. ..inches stroke. Of close-grained iron as hard as can be wo rked. Each cylinder cast in one piece with half

saddle. When placed horizontally right and left hand cylinders to be reversible and interchangeable, accurately planed and fitted, and bolted togeth er in the most approved manner. Valve-face and steam-chest seat raised above face of cy linder to allow for wear except when piston-valves are used.

Cylinders oiled by ........ N t.h ... Tr.ipl. .. .Bulls.. y. ................. ........... automatic sight-feed lubricator placed in cab, and connected to steam-chest by suitable pipes.

HEADS of cast iron, fitted w ith approved form of stearn paCking. PISTON-RODS of stee l, ground and keyed or bolted to cross-heads, and securely fastened to pistons.

Metallic packing for piston rods and valve 'stems ......... lIT

Of steel , fitted to guide-y oke of wrought iron or cast steel. .

Cast .... t l. ..... ..... .with suitable bearings ............. .. p pt. ·

Shifting link motion, graduated to cut off equally at all points of stroke. Links, sliding-blocks, pins, lifting-links and eccentric rod jaws to be well case hardened, or provided with hardened bushings. Sliding blocks with long flanges to give ample wearing su r face. Rock-shafts and reverse-shaft of wrought iron or cast steel. l.lppt . Steam-chest valves....... CO , ... tth. .. '" OUU

1 ................ in number, .. .56 ·· .... .inches in diameter. Centres of cast 8 1 ....... .turned to

g .......... inch~ a~amete: ..... ........ : ................... . ....................... .

~! sfe ..................... ll1ches thICk when finished; .... ... .... ... ok . pairs fJanged ......... 5 .......... inches wide, ........... On t . . .................... pairs plain ...... & ......... ..inches w ide.

Of hammered steel; journals .................... ..inches diameter and.... ... ..inches long.

Of ..... 0 t .st . . ............... , w ith bronze bearings.......... Upp· .. ................................ .

Of steel, tempered in oil. EQUALIZING-BEAMS of wrought iron or cast steel. ppt . CONNECTING and PARALLEL RODS of hammered steel. Connecting rods forged solid, and

fu r nished with all necessary straps, keys and brasses. Para llel rods with straps, k eys a nct bra sses or wit h solid ends and heavy bronze bushings. Bushings put in by hydrau lic pressure, and we ll secured from turn i ng in rod ........ ...S\lp-pt .............. .................... ............................................. . .................. .

Lubrication of all bearings carefully prov ided for, and oil cups attached where required.

Wick, plPDger or adjustable needle oil-cups on rods aod guides.

WRIST-PINS of steel. S l.lppt. Supplied by... o . l tor., . L5V ..... Mmlr4v.~An . injectors

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Cab

Pilot

S'8118

Fixtures

Finish

J

Painting

Case- Hardening

Alloy

Threads

Gauges

Patents

Tank

Frame

Trucks

Wheels

Tool Boxes

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nt.1r 1 Substantially built"of... t 11... . well fini shed, and substantiall y

fitted together. To be provided with suitable w indows a nd doors, conveniently a rranged, and glazed

with first quality double American crystal glass. C ab seats, cab seat cus hions and an engineer's arm

rest to be provided.

Of wood , braced with iron ..

Engine furnished with o .. sand-box . ... .......... , .. .bell a nd cord, extra fusible pl ug ,

engineer's torch. Chi BOILER FITTINGS : Whistle, .On . ........ ........ blow-off cock, ..... to .. . ... C.ONSOLID m

to safety-valves, blower-valve, . On . . stea m-gauge and glass water-gauge with lamps, gauge cocks .

TOOLS: Two jack-screws and levers , one pinch-bar with steel point and heel, suitable wrenches

to fit a ll nuts and bolts on engine, including two monkey-wrenches, one set of driving-box packing

tools , one machinist ' s hammer, one soft hammer, and three cold chisels (two flat and one cape) .

C ANS : One long spout quart oil can, one two-gallon oil can, one tallow pot.

FIRING IRONS: To suit fuel.

Boiler . lagged with approved magnesia boiler covering, neatly jacketed

with .. .. .pl a.nish< iron ......................... and secured by iron bands.

Dome lagged with same material as boiler, with painted iron casing on body and cast iron top and

bottom rings. Cylinders lag2:ed with same material as boiler, neatly cased with iron, painted .

Cylinder-head covers of hydraulic forged steel, painted or ~8Iisl;u~.;j, Stea m-chest bodies cased with

pa inted iron, except when piston-va lves a re used.

Handrails of iron. Cab-boards and running-boards of~' S S pt . Engine and tender to be well pa inted and varnished. Lettering a nd numbering to be painted

as specified by purchaser. Suppt. All finished mova ble nuts made of steel, or iron case hardened.

All wearing brasses made of phosphor bronze, or ingot copper, lead and tin alloyed in pro

portion to give best mixture for wearing bearings.

All threads on bolts to be United States standard.

All principa l parts of engine accurately fitted to gauges and templets, a nd thoroughly inter

changeable.

Builders not responsible for patented appliances specified by purchaser.

If for use in United States, ash pans, couplers and hand-holds to be in accordance with

Interstate C ommerce requ irements.

TENDER

Tank of steel strongly put together with angle-iron corners a nd well braced. Top and

bottom plates .......... 5.j.l6 .. .... .. thick, inside plates .. l/4.t. ..... .thick, outs ide plates ............ 1/4~ .. .. thick,

riveted with ...... 1/ ... inch rivets, ...... l ... l/ ....... ..inches pitch.

Capacity .. 5.5.0 ....... gallons (of 231 cubic inches), Fuel ca pacity 1 t on Shape of tank ......... "-UIt... ., ... t r i gh .. t op . ...... . Tender frame substantia lly built of... ..... .1 . t 1 c ls .. .. , strongly braced.

Two four-wheeled centre bearing trucks , made with steel or iron side-bars and cross-beams

of steel channels .. ...... Ar-e-h .. · r · t rue, . " . Additional

bearings at sides of back truck liptic Springs , cast steel, tempered in oil .

...... .0 t .. l·ron·· pok . 0 nt r .. 1. t1r wheels ....... 33 ........... inches diameter .

Brakes on all wheels.

AXLES of hammered steel; outs ide journals ..... 5 .inches diameter and ................... .. ..i nches

long. Oil-tight boxes with bron ze bearings.

Tool-boxes of hard wood, fitted with locks and keys.

or of T n r tt ch d.

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HEADLI GHT

BIWa:S

THROTTLE

ASH PAll

GINE TRUCK

GUIDES

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SUPPLEMENT TO SPECIFICATION NO ....... B~.600a . .. .

CLASS ........... 10~30 ... D ........................... ....... .

FOR ............. . fEUS .1IORTHEAB.TIRN. ·RAILROAD .. .

.. .....

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lS· Pyl e electr ic headlight case, Ith' S e ' ol ectrical apparatus a furnished on Engine 9, 01 s 1 30 D 564. (R. R. repor ts th t as near os they can deto~ ine, Builders furni hed an oil-li ht c on formor ongln 8 .

Brakes to be hung i n front of drivers~ d not in back shown on Photograph 1611 (OlaGs 1 32 D 718) . R.R. pr fors air roorvoir looated s shown on P~otogr ph 1611 (Class 1 32 D 718) .

hrottl ' to be lac~d 0 as on locomotive pr viously built by The B. L. W. for this ro d.

Ash- pan to be of the sel f- cleaning type . On Ingine 9, Class 10-30 D 564, the ash- pan slld were not wId nough to Ivo suff 01 nt lap to close op ning in the pan, and R. R. Oo. had to iden these slides . They have had troubl ith the ,burning out of thre gr at bars which are ,i odiately ovor that part of . the ash- pan which'ie ovor the back axle . This space t necessarily contracted and R. R. 00 . think provision should be made for tho inlet of air around the top of the pan which now fits up ti ht aeainst the mud rin~ . Boiler to be r Ised .- to keep p n do m' hieh gtves 4- more under the throe grate b s entioned. The R. B. Oo . want more air i n th pan.

En ino truck entre c ting to be of cast steel. Apply extra lar 0 hub on enoino truck wheels with corresponding .1dth of box. En ine truck heel centre. 23' d1 eter , with tires of har4est grade at el~ 2- 1/2- x 5- 1/2', hold by shrinkage and should r.

o-bar type guides; s 10- 32 D 718) . '

typ 8 hown on Photo~raph 1611 (010. 8

VALVE )lOTION R. B. Co . pr efers shor t bl ades and long valve at me, as shown on Photograph 1611 (01 as 10- 32 D 71S).

DR ING BOXES 1 i n lubric tors in drivln boxes .

SPRING RIGGING R. R. Co . reports troubl ith pring g ar on Engine 9, Class 10-, 30 D 564. They desire xtra h avy springs ith ge r proportion d ac, cordingly. Particular ttention to be p 1d to having liboral clearances at ee sprin ge~r and boiler and firo- ox.

DRIVI NG RODS ain rods f l uted . Side rods fluted with 011d ends . Rod oil- cups to be plunger and forged on rods ; to be not loss than 4-1/2' hi&h, in. sid 2-1/21 • aka suro cupo are proper sile for pins . On En ine 9, Class 1 30 D 564, rod oil- cups 4-1/21 high ere too hi h a,j struck the r0servoir. The boil r to be raised 4- to give additional ol earance for spring rigging, and by so doing eliminate this trouble .

FLANGE OILER Chicago Flan e ,Oil r to lubricate front driving tires .

RAIL ASHER Provide w tor pipes to w h sand fro rails behind roar driver s .

WRI ST PI is R. R. Co . is not satisfied with tho method of holding collar on ,

RU NG BOARD

crank pins and want us to arrunee for the coll r stud and doubl stud nuts to insure a 8ecure fnstenin on loco otlve now building.

Runnin boards to oxt n full le~ th of boilor .

CHAFING CASTING Chafing c tins of steel between engine and tender.

PAINTING Lett r locomotive same as Engine 9, Olass 1 30 D 564. Locomotive to 'be number d -10. in same location as Engine 9,01 88 1 30 D 564, with numb r on back end oj tepder in addition.

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'fondor to bo as ' long as is ··in good practice in ord~r thAt ii will not bo too high. 'he add I tional tank capac! ty 11 desired' In the length and not in· tho ·height. .

Tender frame body bol.t8~ of cast .steel. . ,". Tender truck wheei centre. ~. dlaaeter, ith 'tire. · of 'harde.t '

grade steel, 2-1/2- x 5-1/2-, held by boltod type fastening • . Tender o11-boxes and 11ds to be lame style ,as furnished on R.R.

00' •• Engino 7, Class 10-24 D 51.


"I/';t",.;y

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Boiler and Fire-Box St eel

Fire- Box Copper

Stay-Bolt Iron

Copper Stay-Bo lts

Boiler-Tubes

Cha rc oal Iron

Seamless Steel

Boiler-Tubes of Brass or Copper

Brass and Copper Pipes

Bar I ron

Steel Tank- Plat es

Steel for Forgings

Chilled Wheels

Spring Steel

Phosphor- Bronze

PHYSICAL TEST OF MATERIALS

All materials used in the construction of the locomotive shall be of the best quality of their respeC' ve kinds, carefully inspected, and subjected to the fonowing tests. Notwithstanding these tests, should any defects be developed in working, the corresponding part will be rejected.

All plates must be rolled from steel manufactured by the open-hearth process, and must conform to the following chemical analysis:

Boiler Steel Fire-Box Steel Carbon, between.. . . ....... 0. T5 and 0.25 per cent. 0.15 and 0.25 per cent. Phosphorus, not over.... 0.05 " 0.03 " Manganese, 0·45 0·45 Silicon, 0.03 0.03 Sulphur, ................. 0.05 0.035

No sheets will be used that show mechanical defec'l:s. A test strip taken lengthwise from each sheet rolled should without annealing have a tensile strength of 60,000 pounds per square inch, and an elongation of 25 per cent. in a section originally S inches long. Sheets will not be used if the test shows a tensile strength of less than 55,000 pounds, or more than 65,000 pounds, pel' square inch, nor if the elongation falls below 20 per cent.

Copper plates for fire-boxes"must be rolled from best quality Lake Superior ingots; they must contain at least 99.75 per cent. pure copper, and should have a tensile strength of 30,000 pounds per square inch, and an elongation of at least 35 per cent. in a section originally 2 inches long. P lates showing a tensile strength of less than 29,500 pounds per square inch will not be used~

Iron for stay-bolts must be double refined, and must show an ultimate tensile strength of at least 4S,000 pounds per square inch, with a minimum elongation of 25 per cent. in a test section S inches long. Pieces 24 incl.les long must stand bending double both ways, without showing fracture or flaw. The iron must be rolled true to gauges furnished by The Baldwin Locomotive Works , and must permit of cutting a clean, sharp thread.

Copper stay-bolts must be manufactured from the best Lake Superior ingots; they must contain a minimum of 99.75 per cent. pure copper, and when annealed should have an ultimate tensile strength of 30,000 pounds per square inch, and an elongation of at least 35 per cent. iu a section originally 2 inches long. Copper with a tensile strength of less than 29,500 pounds per square inch will not be used.

All boiler-tubes will be carefully inspected and must be free from pit-holes or other imperfection. Each tube must be subjected by the manufacturers, before delivery, to an internal hydraulic pressure of not less than 500 pounds per square inch. They m ust be rolled accurately to the gauge furnished by The Baldwin Locomotive \Vorks, filling the gauge to a plump fit. They must be expanded in the boiler without crack or flaw, and must conform to the following test requirements.

A test section Ii inches long, cut from any tube, must permit of vertical h ammering without showing transverse cracks when flattened down.

All tubes must be draw; from steel manufactured by the open-hearth process and must conform to the following analysis:

Carbon... . ... 0. IS to 0.24 per cent. Phosphorus not over ............ 0.04 per, ~ent. Manganese .......... 0.40 to 0.65" Sulphur" ............ 0.05

A length of Ii inches, cut from any tube. must stand collapsing by vertical hammering without showing any cracks.

A length of 4 inches. cut from any tube, must stalld horiwntal collapsing until the sides meet without cracking. I

Tubes of brass or copper to be of uniform circumferential thickness and solid drawn ; to be perfectly round, and to resist an internal hydraulic pressure of 500 pounds per square inch. After annealing they must stand the following bending and flanging tests:

A length of 4 inches. cut from any tube, must stand being sawn lengthwise and doubled iuside out without showing signs of cracks. Any tube must stand h aving one end flanged without cracking. The tube will be held in a die with the end to be flanged projecting. For tubes of diameters between It and 2~ inches this projecting end is to be five-eights of an inch long. For other diameters a proportinate length is to be flanged.

Bar iron should have a tensile strength of 50,000 pounds per square inch. and an elongation of 20 per cent. in a section originally 2 inches long. Iron wi11 not be used if tensile strength falls below 48,000 pounds nor if elongation is less than 15 per cent., nor if it shows a granular fracture.

Tank-plates to be rolled from homogeneous steel billets. and must be of good finish and free from surface defects. such as spalling or bad buckling. The steel to be of such quality that pieces taken lengthwise of any plate shall show no signs of fracture when bent double while cold. over a mandrel whose diameter is one and a half times the thickness of plate so tested.

All blooms for use in axles, pins. rods. guides. and similar forgings. must be made by the open-hearth process and be free from seams. slivers. and other surface defects.

Drillings will be taken from a point midway between the centre and the surface of the bloom. and must conform to the following specification when analyzed by The Baldwin Locomotive Works standard method:

Carbon, about.. .. 0.40 per cent. Phosphorus. not over ............ 0.05 per cent. Manganese, not over ......... 0.60" Sulphur," ............ 0.05 "

These blooms should be of such quality that a test piece. machined cold from a full-sized bloom of each heat used. has. when tested. an ultimate tensile strength of So.ooo pounds per square inch. and an elongation of 20 per cent. in a test sect ion originally 2 inches long.

Blooms will not be used that show an ultimate tensile strength of less than 75,000 or more than 90.000 pounds per square inch. or an elongation of less than 15 per cent.

All forgings which develop seams or pipes upon machining will be rejected. Of approved make and of following guaranteed mileage:

For 2S-inch wheels .... 40.000 miles. For 33-inch wheels .... 50,000 miles For 3o-inch wheels ............ · ...... 45.000 miles. Other sizes in proportion (Adopted by Joint Committee Master Car Builders' Association, American Railway Master Me

chanics Association. and Association of Manufacturers of Chilled Car 'Wheels, November 21. ISS9.) Deficient mileage will be adjusted upon the return of defective wheel. or that part of same containing

t he defect causing withdrawal from service. Or, if preferred. wheels will be furnished subject to approved specification and drop test without mileage guarantee.

All spring steel must be manufactured by the open-hearth or by the crucible process. and mnst be free from allY physical defects. The m etal desired has the following composition:

Carbon. .. .. ... 1.00 per cent. Silicon. not over .. .. ........ o. IS per cent. Manganese ........ 0.25 ·" Sulphur," ........ 0.02 " Phosphorus. not over.. ... 0.03

Steel will not be used which shows on analysis less than o.go or over 1.10 per cent. of carbon. or over 0.50 per cent. of manganese. 0.05 per cent. of phosphorus. 0.25 per cent. of silicon. or 0.05 per cent. of snlphur. A tempered bar resting upon supports 24 inches between centres must not take a permanent set of more than 0.05 inch after the first application of a load corresponding to a fibre stress of 135,000 pounds per square inch. nor more than 7.5 per cent. of the total deflection under 160.000 pounds fibre stress. nor any further set after five additional applications of a load giving a fibre stress of 150.000 pounds per square iuch.

All bronze to be m ade from new metals and should show the following analysis: Copper.... .. .. 79.70 per cent. Lead. .. ........... 9.50 per cent, 'fin,.... ................. .. .. ...... 10.00 " Phosphorus . .............. ... o.So "

Bronze will not be used should analysis show results outside the following limits: Tin... . below 9.00 per cent. or over II.OO per cent. Lead. " 8.00" " 11.00 " Phosphorus......... , "0.70 1.00

Bronze will also be rejected in case it contains 0.50 per cent. of any substances other tha n the fOll r elements mentioned in this specification . •

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THE BAl;riWIN

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HILADELPHIA, PA.

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Specification Nd.B-6002 . "'-~\\'

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.. 'i'EN .. 'iHEELID . ,, "

LOCOMOTIVE ENGINE

Class .... 10-30» ..

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texas south-eastern railroad company locomotive 10 builder ... · fire-door opening formed by...

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