US1536036A - Locomotive - Google Patents

Description

W. F... WUODARD LOCOMOTIVE 3 Sheets-Shea IN VENTOR Ma's, A TTORNE Y5 Filed July 2.2, 1ga2z April 28, was

w. E. WOODARD Lucomo nv'm Filed July 2 2, ,1922

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.4 TTORNE Apmii was. 536,036

W. E. WQQDARD LOGOMOTIVE Filed July 22 1922 5 Sheets -Ski ec WITNESS INVENT R Willi.

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Applieetlon tiled July 22, fieriel We. llltijflitl.

Forest Hills, in the county of Queens anti apparent in the construction juet (loom-.1

State of New York, have inventeii certain new end useful Improvements in Looomo tives, ()fWlllCll the following is 23 specilico tion.

i This invention relates to improvements in looomo'tives anal its nature and objects ant: advantages will he, perilous best 'UDClQISiZOOii from e brief statement oi present practice.

In the constmiction, :zln'ioet universally useli with locomotiiiee having the lire hos placed; back of the driving Wheels and ham-- mg a trailer truck, the main frame extends through from the lost th'ivi'og Wheels to the hack cool of the locomotive. The frame usually consists of two Hat slabs of forged steel, or {L steel casting in which foot pletee encl boiler supports, both front and rear are cast together with. the sitle members. The trailer truck, usually of the two-Wheel type, is pivotelly connected to the main frame just back of the rear drivers :mcl i-ecl'etes uncli-zi'neeth the res].- extcnsion oi the frame or frame cradle, the sizperimposecl Weight being transmitted to the truck through means oit'slicling plates, rockers, or swing links. In this construction tmctive force exerted by the locomotive eng'ne is carried through the frame anti toot plotsettoched thereto, end transmitteii to the tender Whch follows the locon'iotive 'io z moons of a drewben it will he noted that in this construction the frame structure the locomotive carries all at the trective effort exertetl. by the locomotive engine anti the trailing truck is purely e cei'rying ttucit. By reason of the mpitl increase in size of locomotives and the Weight tltiereoi, oertilll'l well-defined limitations have hccome hell, and these limitations present a serious handicap upon iurtlicr development of the locomotive es :1 whole, as Well as presenting d'l'llcultics in the iiesign aucl operation of present types of locomotives. f .A.1nongtl1ese (liliicnlties the following may be noted: The connectionlromthe locomotive to the tender is necessarily at the ere tremor end of the frame extension nhove mentioned and it is eviclei'it that on curves the extreme back end of the engine on count of its overhang, has :1 very large littoral motion relative to the center line of the track, necessitating epeeiiil construction of buffers and (lino/hers between the engine anti the tender to allow for the excessive svine; at, the back of the engine. The swing often amounts to es inuco 12 03:14" each side of the center line out the truck and it is et once upperent that there one tlilliciiities encountei'ecl when it is necessary to provide and moin'tetin o ceupiing between engine and tenuiei' suitable for transmitting the very heavy locomotive tiective power now used through a connection which is capable of a side motion greet this.

it will oiso lJG noted that it is untlesii'able to transmit the heavy trective power (leveloped by the ioconiotive eng ne throu connection at the heel; of the engine w may have, at times.,es.much as 12" or 14" offset from the center line of the track.

Again the size of the locomotives has igi'own to such e point that the trailer Wheel ecis eie excessive, and one oi the greatest dificultice the locomotive designer" encounters'is to keep these trailer truck ,Weighte Within reasonable l'niits, this being particularly true since the iiiu'i'oiiuctiou the locomotive lJOOSiEl" as an adjunct to the main loco motive engine, such hooste? being ceii'iecl on the trailer truck frame. 7

In addition the ery construction otthc ironic itself and the necess'ty of providing rear frame extensions heavy enough to carry the tracti've force of the locomotive and the provision of it truck suliicient strength to carry the load, reduces the space available fol the ash pen under the box. 'lil'ifi capacity of the ush poo and the size of the openingthrough the ash. pan. for the atlmiseion 01%; oil" beneath the grate are important n-nil vital elements in the ope ition oi? the locomotive boileix end the iimi'tiiltion imposeii by the element above mentioned con stitute o serious handicap and limit upon further etlvencein locomotive design and upon, proper opei iit on of many Qlf thc'locomotives as at present cmisti'ucteti.

The introduction. of the hiconiotive booster hate zidtleil fut'thei? problems in that the booster must else he accommodated in the liiniteti splice et the heck end of the -locomotive undecneeth the lite lion; and 'lltll'le extensions we at present iilcsigz'ietl 'ltis high to secure till}? his purpose and thus the size of such an auxiliary power unit is limited.

In such locomotives as are equipped with Stoker mechanism, it will be seen that the conditions above noted are rendered still more marked.

It is one of the primary objects of my invention to provide an improved form of locomotive of simple construction which meets the dilliculties above mentioned; and in which, also, a maximum space is made available underneath the fire box for the ash pan, the booster motor, stoking mechanism and other parts.

Another object of my invention is to provide an improved form of articulated frame construction in which the frame portions, in edect, operate as a unitary structure, vertically considered, while there is freedom for swinging or lateral movement of that portion of the frame which is beneath the fire box. tages will appear hereinafter in the descrip tion of the invention.

I accomplish the foregoing, together with such other objects and advantages as may be incident to my invention by means of a construction which I have illustrated in pre ferred form in the aocompanaying drawings, wherein:

Fig. 1 is a fragmentary side elevation of the rear portion of a locomotive illustrating the application of my improvements thereto; Fig. 2 is an end elevation of Fig. 1; Pi 8 is a section taken on the line 33 of Fig. 1; Fig. i is a plan view of Fig. 1 with the tire box and boiler removed; and Fig. 5 is a diagrammatic view illustrating a modification of my invention. 4

Referring now to Fig. 1, it will be seen that I have shown only a portion of the boiler 7 and the fire box 8, both being of standard construction. The frame, however, is of divided construction and comprises a main portion A extending from a point approximately beneath the front end of the fire box forwardly underneath the boiler, and a supplemental frame B, the forward end .of which is articulated with the rear end of the main frame, as by means of the pivotal or hinge pin connection-9 which permits the supplemental "frame to swing laterally with respect to the main frame during curving. I

The main frame may be of standard con struction comprising two side plates 10, connected together at front and rear by means of the cross ties 11. This frame has pedestals 19 to receive the boxes (not shown) for the drivers 13.

The articulated supplemental frame 1B comprises the side members 1.4:, the forward cross member and the foot plate 16 at the rear, all of the parts being preferably made More specific objects and. advanwidth can be employed.

plemental frame have pedestals 17 for the journal boxes (not shown) in which the pair of axles 18, with which the frame is preferably provided, are journalcd. 'lhc supplementabframe is outside the plane of its wheels, and. the side members are in the plane of the axle journals. The foot plate 16 is provided with a drawbar pocket 19 which, it will be. seen on inspection of Fig. l, is located at the upper, rear end of the frame; and it is also pro vided at its lower rear portion with a removable cradle-like cross member 20, serving as a support for the booster motor, indicated as a whole by the reference letter C. The booster motor. if used, is also in part supported on suitable hearings on the rear axle of the supplemental frame in a manner well understood in this art, and extends rearwardly "from such axle and through the space between the cradle 20 and the foot plate. It will be noted that the construction in so far as thus described, is one by virtue of which maximum clearance spaces are made available. both trai'xsversely and longitudinally of the supplemental frame, i. e., of the lire box. Transversely considercd, the distance between the side members 14 of the articulated frame may be much greater than would be the case if the main frame 10 were carried through to the back end of the locomotive as is the customary practice, and thus an ash pan of maximum Longitudinally considered. the pair of axles 18 of the supplemental frame can be widely spaced apart, irrespective of whether a booster is used or not, and thus maximum clearance between the axles is made possible tor'tbe ash pan. li in'ther ash pan ciea rance may be made possible by having one pair of the. wheels supporting the supydemental frame of smaller diameter than the other, as shown in Fig. if a booster is applied. it is preferable to, make the leading wheels smaller in diameter "than the rear wheels of the supplemental frame.

The main frame A is connected to the boiler, in front and rear, in the usual manner, an ex ansion bearer 21 being shown at the rear, )etwecn the mud ring 22 of the fire box and the cross tie ll of the main frame-the imposed weight is transmitted through the usual springs 23 and spring bangers 2 The imposed weight may be transmitted to the articulated frame in any desired man.- ner, but I prefer the arrangement shown, in which I provide fulcrunis 24- on the cross tie at the rear oi the main frame A for the equalizing beams 25 connected by hangers 26 to the forward end of the springs 27, the other ends of said springs being! wonnected by the hangers 28 to an end of the beams 29 illt) integral. The side members 14 of the sup-fulcrumed on the side members 14: of the supplemental frame. The rearward encls of the beams 29 are connected by hangers 30 to the forward enil of the springs 31.

34 of the beams 29 nearer oneenrlthaii the other, as Wlll be seen on inspection of Fig, l...

In order to provide suiteblc support for the cab (lock, cob Stoker mechanism anrl other parts at the back one of the locoiiiotire (heretofore carried. on the rear erten sioroc of the frame), I provide a supporting meaiispreferably carried on the mud of the fire box. In the embodiment shown, this supporting means comprises a pair of members l) which extend along the cities of the rout-l ring 252 for a subst: i-biel olistc ice with their reef curls projecting; beyond the back ii a plural y of points to extension 252" of the mutl ring by the bolts or rivets 35.. The members D Wherethey extcncl along the mucl ring, here on cowardly: projecting, inclined Henge as at their bottom, serving a support for the ashpah 37' cool they are also provided with an outwardly attend ing, curved. fiaiigerl portion 38 which lends strength and rigidity and makes it possible to provide openings 39 in the vertical poof tion 40 of such members of a size such as will admit sullicient air into the lIOK for proper coii'ibustiosm Those portions of tie mein c' bee and. of thefire box are of channel chaps and. are connected. by means of the cross tie or angle ll, curl serve as a support for the cab deck l2 and ash (l3. The bearer mombere 32 previously mentioned, may form a part of a cross member 32 and are riveted to the respective members D. The worm ber 32 constitutes a support forrthe SiZOktZI" mechanism diagrammatically imiicatecl at all in Fig, l. Thus ell of the partp of the locomotive which are connected. to and go with the boiler and lire box are supported by the members l) and are thereby kept in fixed relation to the back encl. of the boiler.

The rear or tail portiooof the main fraine provided with tongue-like projections e5,

preferably two in number, such projections being; adopted to extend into recesses #16 formed in the cross tie 15 of the supplemental frame. The recesses 46 have greater Width than the projections 45 so that the supplei'ociital frame will have fiectlooifor radial movement about the pin Q as center, but the projections 45 are adapted to seat on the bottom or seat portions i l of the re ii of the box, They are sccoreol' at .rs D extending rearwariily of the pain frame, Wheels supporting the from cesses 4.6 and they thus perform two fume? tions; namely, they assist and cooperate with" the HlEIDbEI'S in maintaining the supplemental frame in horizontal. alignment with the main freme (it e, as against vertical dis? Tl! placement) and they -servc to transmit, Weight from the main frame to the supple-A mental frame in such cases as Where the; main drivers pass over a 10W portion in the]: rails, such as at a joint. Thus, vertically '15 considered, the two frames act as a unitary structure with freedom, however, of the sup- H plcmeiital frame to swing laterally with re--. H spect to the meio frame cluringcurving";-

Cllhis is of great practical utility because the.

equaliser Work of the main frame'is coupled; .1 to the equalizer Work of the supplemental i frame aid the functioning ofthe equalizing: 1 means considered as 21 whole would be materiolly impaired if the two frames were not in effect unitary, vertically considered. The j horns or projections l5 also prevent the front cool of the supplemental frame from kicking up.

I claim: Y 1 9o 1, lo a steam locomotive the combination? of a main frame primarily sup citing" the superstructure, Wheels supporting said frame, a supplemental frame artloulatecl to the main frame for the transmission of pea ing stresses, a pair of axles journalled in said supplemental frame and provided with" Wheels, and e booster motor carried on the supplemental frame for driving the wheels of an axle of such frame, f W0 2. In a locomotive the combination of main frame, Whcelssupporting said. frame, a supplemental frame articulated to the main frame, a pair of axles journalled i soicl supplemental frameanol provided Wit 1 Wheels, and a booster motor carried on the supplemental frame for driving the Wheelsv of the rear axle of such frame, said motor being also supported on such rear axle and j extending rearwardly'therefrom. {1 3. In a locomotive the combination of main frame, Wheels supporting said frame? a supplemental, frame articulatecl'to the supplemental frame for driving the Wheels 1 i of an axle of such frame, together with 1 means for effecting distribution of imposed Weight arraiigetl so as to transmit moref Weight on saicl mile than on the other axlcof the supplemental frame.

4. In a locomotive the combination of o a supplemental frame articulated to and c tending rcarwardly of the main frame, L. boiler on the main frame having a fire box extending rearwartlly over the supplementalfl'ame, a pair of spaced axles having "Wheels for supporting the supplemental frame,.and an ash pan for the bottom of the tire box extending downwardly between the axles on the supplemental frame.

In a locomotive the combination of a main frame, Wheels supporting the frame, a supplemental frame articulated to the main frame, a. boiler on the main frame having a fire box extending 'rearwardly over the supplemental frame, av pair of spaced axles having wheels for supporting the supplemental frame, and'an ash pan for the bottom of the fire box extending downwardly between the axles on the supplemental frame. together with a booster motor for driving the rear axle of ti: supplemental frame extending rearwardly therefrom.

6. In a locomotive the combination of amain frame, wheels supporting the frame, a supplemental frame articulated to the main frame, a boiler on the main framehaving a fire box extending rearwardly over-the supplemental frame, a pair of spaced axles extending rearwardly over the supplemental frame, a pair of spaced axles having wheels for supporting the supplemental frame, and smash pan for the bottom of the tire box extending downwardly between the axles on the supplemental frame, one set of wheels of the supplemental frame being of smaller diameter than the other wheels.

8. In a steam locomotive'the combination of a main frame rimarily supporting the superstructure an its supporting wheels, a supplemental frame extending rearwardly of and articulated to the main frame, a pair of axles in said supplemental frame provided with wheels, and means whereby a greater portion of the imposed weight on said supplemental frame is transmittedto one pair of its wheels.

9. In a steam locomotive the combination of a main framedprimarily supporting the superstructure an its supporting wheels, a supplemental frame extending rearwardly of and articulated to the main frame, a pair of axles in said supplemental frame provided with wheels, andv means whereby a. greater portion of the imposed weight on said frame is transmitted to one pair of its wheels, together with a boosmr' motor for driving said pair of wheels.

1O. In a locomotive the combination of a main frame and its supporting Wheels, a supplemental frame, articulated to the main frame, a pair of axles in said supplemental frame provided with wheels, and means whereby a greater portion of the imposed weight on said supplemental frame is transmitted to one pair of its wheels, to ether with a booster motor for driving sai pair of wheels in part supported on the supplemental frame and in part on the axle of said pair of wheels. I 11. In a locomotive the combination of a main frame andv its supporting wheels, a supplementalframe articulated to the main frame, provided with draft means at its upper rear portion and with a booster motor support on its lowerrear portion, an axle in said sup lemental frame provided with wheels, and a booster motor in part supported on said axle and in part on said support and extending between the support and the draft means.

12. In a locomotive the combination of a main frame and its supporting wheel s, a supplemental frame articuated to the main frame'and provided with pedestals, an axle and wheels for the supplemental frame, a

cradle-like booster motor support on the lower ortion of the supplemental frame to the si e of the pedestals, and a booster motor carried on said axle and resting in the cradle.

13. In a locomotive thecombination of a main frame andjts supporting wheels, a supplemental frame articulate-d to and extending rearwardly of the main frame, and an axle and wheels for the supplemental frame adapted to be driven, said supplemental frame being provided with a booster motor support.

14:. In a locomotive the combination of a main frame primarily supporting the superstructure and its supporting wheels, a suplemental frame articulated to and extendmg rearwardly of the main frame and provided with wheels and pedestals, said supplemental frame hinged to the main frame for radial movement with respect thereto, and interengaging means between the two frames substantially maintaining horizontal alignment thercbetween but permitting radial movement 15. In a locomotive. the combination of a mainframe primarily supporting the superstructure and itssupporting wheels a supplemental frame articulated to and extending rearwardly of the main frame and pro vided with wheels and pedestals, said supplemental frame hinged to the main frame tor radial movement with respect thereto, and interengaging means between the two frames suhmantialiy maintaining vertical ali ment therebetween but permitting radial. movement, said means including a 1,530,0se B ton ac and a recess in which the tongue extends.

16. In a locomotive the combination of a main frame primarily supporting the superstructure and its supporting wheel's, a sup plemental frame articulated to and extending rearwardly of the main frame and provided with wheels and pedestals, said supplemental frame hinged to the main frame for radial movement with respect thereto, and means at the forward and also at the rear portion of the supplemental frame affording support against horizontal disalignment but permitting radial movement.

17. In a locomotive the combination of a main frame primarily supporting the superstructure and its supporting wheels, a supplemental frame extending rearwardly of and articulated to the main frame, supporting wheels therefor, and means whereby more of the imposed weight may be transmitted on certain .of the whee s than on others.

18. In a locomotive, the combination of a main frame primarily supporting the superstructure and its supporting wheels, a supplemental frame and its supporting wheels, said frame extending rearwardly of and articulated to the main frame and having lateral movement with respect to ,the main frame, and means whereby weight may be transmitted by the main to the supplemental frame.

19. In a locomotive, the combination of a main frame primarily supporting the superstructure and its supporting wheels, at supplemental frame and its supporting Wheels, said frame extending rearwardly of and articulated to the main frame and having lateral movement with respect to the main frame, equalizing means for distributing imposed weight, and means whereby weight may,be transmitted by the main to the supplemental frame.

20. In a locomotive. the combination of a main frame primarily supporting the superstructure and its supporting wheels. a supplemental frame and its supporting wheels, said frame extending rearwardly of and articulatedt?i the main frame and having lateral movement with respect to the main frame. and means whereby weight may be transmitted by the main to the supplemental frame, said last means also serving to maintain horizontal alignment between the frames.

21. In a locomotive, the combination of a mainframe rimarily supporting the superstructure and its wheels, and a supplemental frame and its wheels, the supplemental frame being articulated to and extending rearwardly of the main frame and having its pulling members entirely outside the plane of its wheels.

22. In a-locomotive, the combination of a main frame primarily supporting. the superstructure and its wheels, and a supplemental frame and its wheels, the supplemental frame being articulated to and extending rearwardly of the main frame and having its pulling members entirely outside the plane of its wheels and in the plane of its journals.

23. In a steam locomotive, the combination of main drivers and a plurality of trailer axles with their wheels, and means whereby a greater portion of the imposed weight on the-trailers may be transmitted to the wheels of one trailer axle, together with a booster for said last axle.

24. A steam locomotive having in combination a boiler and fire box, a main driving frame primarily supporting the superstructure, main driving wheels, a plurality of axles with their wheels, and a frame c der the box in'which said plurality of axles are journaled, said last-mentioned frame being articulated with the main frame and transmitting pulling strains and having its longi tudinal pulling members entirely outside the plane of the wheels.

25. In a locomotive, a main frame. primarily supporting the superstructure, a weightsupporting, supplemental frame adapted to extend rearwardly of and to he articulated with the main frame. said supplemental frame comprising side and end members, the side members having a plurality of pairs of pedestal jaws, the forward end member having means for articulation with the main frame and the rearward end member having a draft pocket therein, all cast integral.

Intestimony whereof, I have hereunto signed my name.

WILLIAM E. WOODARD.

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