USRE14661E - Locomotive - Google Patents

Description

n wm Vm mf@ E MM T LOCONIUTIVE.

o. Mi EATON] APPLICATION FILED 1AN.25. ISIS.

Reissued June 10, 1919.

UNITED sTATEs PATENT oEEIoE.

GEORGE M. EATON, OF PITTSBURGH, PENNSYLVANIA, ASSIGNR TO 1WESTlN.'rHll'SEi ELECTRIC AND MANUFACTURINGEOMPANY, A. CORPORATION 0F PENNSYLVANIA.

LOCOMOTIVE.

Specification of Reissned Letters Patent. Reissued Jun@ 10, 1919.

Original No. 1,241,500, dated October 2, 1917, Serial No. 837,745, led May 11, 1914. Application for reissue filed January 25, 1919.

To ZZ 'whom t may concern.'

lie it known that I, GEORGE M. EATON, a citizen of the United States, and a resident of Pittsburgh, in the county of Alleglicny and State of Pennsylvania, have invented a new and useful Improvement in Locomotives, of which the following is a specification.

My invention relates to electrically propelled vehicles, and it has special reference to -electric railway locomotives.

The object of my invention is to provide an electric locomotive of the articulated type which shall be simple, strong and durable in construction, powerful and smooth-running in operation, and so constructed that it may be readily overhauled 'for repairs and reassembled with facility.

According to my invention, I provide a set of geared twin motors for each driving truck which are spring-supported between thedriving`-r axles and are mechanically connected to the driving wheels through a countershaft and sideV rods. By reason of the size and location of the driving motors, with respect to the side frames of the truck, it is impossible to provide a pivotal driving connection between the trucks and the locomotive body in the customary manner and, I, therefore, provide meansl associated with 'the side frames and disposed between the motors and materially above them for effecting` the pivotal connection.

Moreover, I provide partially cylindrical motor-supporting frames which extend transversely between the side frames and are provided with end projections that are seated in suitable recesses in the inner sides of the respective side frames. When the motor supporting frames are rigidly secured to the side frames by bolts or other suitable means. the motor frames; constitute permanent cross-ties lof the truizk frame and provide a particularly strong and rugged structure.

The driving` motors differ in certain re spects from the usual type of motor in that each motor embodies but a single substantially semi-cylindi-ical supporting trame into which a separable magnetizable core is seated and clamped in position, while the motor armature is supported in bearing housings, which are detachably secured to `the locomotive side frames in eoncentrlc re- Serial No. 273,187.

lation to the motor trame and magnetizable cor The magnetizable core member isentirely uncovered, and the end portions of the armature are protected by suitable casings, preferably of sheet material.

My invention may best be understood by reference to the accompanying drawing, in which Figure 1 is a. view, in side elevation, of a portion of a locomotive constructed in accordance with my invention, certain parts being removed for the sake of clearness; Fig. 2 is a plan view of a. portion of the locomotive shown in Fig. l; Fig. 3 is a view, partially in section and partially in end elevation. of one'of the driving motors, the section beingtaken along the line III-#JH of Fig. 1; Fig.` 4 is a view, partially in section and partially in elevation, of the pivotal drivingr connection between the locomotive body and one of the driving trucks, the section being taken along the line IV-IV of Fig. 1; Figs. 5 and G are, respectively, a view in side elevation and a plan view of the set of driving motors shown in Fig. 1, and Fig. 7 is an enlarged det-ail view of the means for clamping the mag-- netizable core members of the motors in position.

Referring to the drawing, the structure shown comprises a locomotive body 1, and a. plurality of articulated driving trucks 9. and 3 associated therewith, each of which is provided with a plurality of driving,Y motors 4 and 5 which are carried by the side frames 6 and are mechanically connected to driving wheels 7 through the agency of pinions 8, gear wheelsQ and side rods 10.

T he locomotive body 1, in general, may be of any suitable construction, and embodies a central `raised Hoor portion 19. ot trussed structure in order to acommodate the driving motors and a suitable center-pin structure. Any suitable construction may be employed for providing the raised floor portion of .the eab body, but find it preferable to employ elevated longitudinal beams 13 which are disposed within the mam floor longitudinal beams 14 and are rigidly supported by means ot' inclined trusses 15 and cross-ties 16 and 17. The cross-tie 16 ex-l tends transversely betwcen the main licor longitudinal beams 1&1-, while-:the cross-ties 17 extend between the elevated beams 13. Between these ties 16 and. 1?, and in the ecntral plane of the locomotive, is a centering block 18 which carries a suitable center pin 19 that is associated 'with the driving truck in such manner as to provide a pivotal driving connection between. the truck and the locomotive body, as Will be hereinafter set forth. As shown, the center pin 19 serves merely as a pivot and driving connection and takes no Weight of the cab body, which weight is transmitted to the'driving trucks through suitable spring-loaded friction plates E20, in a well-known manner, although I do not Wish to be 'restricted in this respect.

Each driving truck embodies a` plurality of side' fran'ies 6 which are provided, as is customary, with journal boxes 26 in which the driving axles 27 are disposed. The loco motive side frames 6, moreover, are sup Aported on the journal boxes Q6 by means of equalizer springs and linkage mechanisms Q8. Eachside frame 6 is provided, between the d'rivingfwheels 7, with a plurality of substantially semi-circular recesses 30 in the upper edge thereof, and with concentric substantially semi-circular recesses 3l in the inner side thereof. The recesses 30 and 31 of the respective frames are correspondingly disposed and the recesses 30 serve to support bearing housings 32, while the recesses 31 serve as seats to receive the ends of the motor frames, as will be hereinafter described. y

Each of the driving motors comprises a supporting frame '35, a separable magnetizable core 36, an armature 37, a "plurality of bearing housings 32, and a plurality of iiiclosing casings 57. rlhe lsupporting member or frame 35 is substantially seiniscylindrical in form and is provided with end projections 3S) which are also semi-cylindrical and are adapted to be seated within the recesses ,31 in the respective side frames 6 and are bolted oi' otherwise secured thereto. The middle portion of the supporting frame 35 is counterbored to provide a semi-cylindrical seat 35a in which the cylindrical inagnetizable core y36 rests, said core preferably comprising a plurality of laminations which are disposed side-by-side and are intimately fastened together between end plate`s40.

The supporting frame 35 is provided with an outwardly .projecting side "lug or bracket 41 which is flush with its upper surface and with which `a clamping member 43 coperates. The member 43 is of substantially the length of the core 36 and is provided with downwardly projecting lugs 44 at each of its sides.4 One side lug 44 of the member 43 rests upon the bracket 41, while the other side lug is disposed within a longitudinal slot 47 that is provided in the magnetizable core member 36 at a height correspondingr substantially to the upper 'surface of the bracket 41. A plurality of clamping bolts 48 project through the bracket 41 and clamping member 43 intermediate its sides,

- and, thus serve to hold the core member 36 rigidly in position.

Inasmueh as the motors 4 and 5 are as seinbled in.side-by-side relation, the adjacent sides of the respective suliipoi'ting frames 35 are provided with a plurality of relativelynarrovv brackets 50 instead of a single bracket of the substantial length of the core memberA 36, and these brackets 5() are so disposed to interlockwith each other, as shown clearly in Fig. 6. The adja` cent portions of the magnetizable cores 36 of the motors 4 and 5 are recessedv and pro vided with substantially parallel faces 52 which are spaced sufficiently to permit the positioning of a clamping member 53 which is similar in construction to the member 43 already described. This intermediate clamping member 53 coperates with ledges 54 on the respective cores 36, and serves to clamp down said cores, through the agency of bolts 55. i

Care should be `eircised to secure a concentric relation betweeii the cylindrical bearing surfaces of the projecting members 39 of the supporting frames 35 and,y the in terinediate cylindrical seats 35 in which the cores are placed. If this relationship is secured, and also a concentric relation of the recesses 30 and 31 of the side frames, it is clear that the motors, when assembled in position, will have" the desired concentricity of armature and lield magnet core. The

i armatures 37 are provided with shafts that are` carried by the bearing housings 32 which are disposed in the side f rame recesses '30 andare secured by bolts to saidl side frames 6.

It should be noted that no upper frame members are i provided for the driving motors 4 and 5, as is customary, and that the magnetizable cores 36 are uncovered and er:`

ice

posed. The ends of the motors are covered i by detachable casings of sheet material which are suitably 4secured to the end platesl 40 of the cores 36. f

Both ends of the armature shafts 56 are provided Witlrpinions 8 which mesh with the gears 9 that are carrieiil by a countershaft 58. yThe countershaft 58 is located. midway between the driving axles 27 and substantially on` a level therewith, and is disposed withina 4 pedestal opening 59 in which suitable bearing blocks 60 are positioned. The respective ends of the countershaft 58 are provided with cranks 62 which have connections with side rods 1() for the purpose of transmitting the driving eilort of the motors to the driving Wheels 7.

A plurality of upwardly projecting meinbers 65` are preferably integrally associated with the respective side frames 6 directly above the countersliaft 58, although the niembers may be entirely separate from ends of the projecting members v65.

openings into which the upper ends 'of the' members 65 project and are fitted. The

cross-tie 67 is. held in place rigidly by meansof suitable removable keys 68 which coperate with said cross-tie and with the uprlpr e cross-tie 67 is preferably permanently pivotally associated with the center pin 19.

lVhen it is desired to overhaul one of the motors, the keys 68 are withdrawn, after which the locomotive body 1 may be raised, by means of a crane or other suitable apparatus` whereby the cross-tie 67 is detached from the projecting members 65 of the side frames 6. The driving truck may then be run out from under the locomotive body and the motors overhauled from above, after having rst lowered the countershaft 58 and associated gears 9. l 1

It is, of course, not essential that the crosstie 67 be detachable from the members 65 and permanently associated with the center pin 19. If desired, the cross-tie 67 may be integral with the side frames 6 or permanently secured thereto, and separable from the center pin 19, in which case, greater difficulty is encountered in oveiihauling the motors, inasmuch as it would then be im )ossible to raise the motors directly from t eir seats, and would necessitate an angular overhauling thereof.

It will, of course, be understood that, in the center-pin structure which is employed for the other driving truck, rovision must be made for a slight longitudinal movement, as is common practice with locomotives of the articulated type. In order to secure this relative movement, the openings in the ends of the cross tie 67 are made slightly" longer than the longitudinal dimension ofthe upwardly projecting members 65, although other suitable means maybe employed.

By reason of the arrangement and location of parts described, a particularlyypowerful locomotive is secured whichv is provided with relatively large driving motors that are rigidly carried lby the side frames, the latter being spring-supported upon the driving axles. Furthermore, the motors are located within the rigid wheel base, and the number of driving gears is reduced to a minimum, while thev elevated cross-tie and gentler-pin structure provides ample space for driving motors of a capacity which could not otherwisebe employed.

Obviously, I do not wish to be restricted to the specific stiuctural details and relationship of arts shown and describd, as it 'is evident t at the benefits of my invention may be secured by ether structures dierng to a greater or less extent, but embodying the principles of my invention. I therefore, desire that only such limitations shall be imposed as are indicated in the appended claims. 70

I claim as my invention:

1. In a vehicle, the combination with side frames having correspondingly disposed upwardly projecting members associated therej with, and a removable cross-tie joining the upper ends of said members, of afcentering device associated with said cross-tie;

2. In a vehicle, the combination with side frames having correspondingly disposed upwardly projecting members associated therewith, and removable means for joining said upwardly projecting members, of centering means associated with said joining means. Y

3. In a vehicle, the combination with side frames having correspondingly disposed upwardly projecting members associated therewith, and a cross member removably secured to the upper ends of said upwardly. projecting members, of a center-pin carried by said cross member. ,Y

4. In a vehicle, the combination with side frames having correspondingly disposed upwardly projecting members associated therewith, and a cross member coperatively engaging the upper ends of said upwardly projecting members, of a center-pin associated with said cross member, and detachable means for securing said cross member to said projecting members.

5. In a vehicle, the combination with side frames having correspondingly disposed upwardly projecting members associated therewith and a cross-member having end openings to receive the upper ends of said up- 165 wardly projecting members, of locking means for ysecuring said cross member to said upwardly projecting members and a centering device associated with said cross member.

6. In a vehicle having two pairs .of driving wheels, the combination with a body, a running-gear having side frames, and a plurality of motors carried by said side frames and disposed between the pairs of 115eI driving wheels, ofY means associated 4with said side rames and disposedV between and below thel upper portions of said motors 'for pivotally connecting said running gear to said body.

7. In a vehicle having two pairs of driving wheels, the combination with a body, a running-gear having side trames, and a plurality of motors carried by said side frames and disposed between, the pairs of 125 Cit till

4in gri v disposed rece;

8. In a vehicle having two pairs of driving wheels` the con'ibination with a body, a runninggear having side frames, and a plurality of motors carried by said side i' ames and disposed between the pairs of driving Wheels, of upwardly projecting nien'ibers associated With said side frames and disposed between said motors, a cross n'ien'iber secured to the upper ends of said projecting men'ibers and disposed belowT the upper portions oi said motors, and means cooperating Vwith said cross-member for associating said body with saidrunning gear.

9. In vehicle, the combination With a- 'f' "z rafsec o r .n o 'r cbody hating i 1 lfl o poitio f i a tional width thereof, and a driving truck comprising side frames, a pair of motors carried thereby, two sets of driving Wheelsv and means for mechanically connecting said motors to both sets oi' drivlngwheels, of an elevated cross Inemlier associated with said 'side frames and disposedbelow the upper portions of said motors, and means coperating with said cross member and said raised Hoor portion of said body `for providing a pivotal driving connection between said body and said truck.

l0. In a vehicle, the combinationvwith a plurality of side frames having oppositely disposed recesses therein, of a motor frame set into said recesses and rigidly secured to said side frames.

11. In a vehicle, the combination `With a plurality of side frames having oppositely disposed recesses therein, of a combined cross-tie and motor frame fitted into said frame reccssesand rigidly fastened to said side frames.

l2. In a vehicle, the combination With a plurality of' side frames having correspondingly disposed recesses in the inner sides thereof,v ot' amotor frame having end por `tions adapted to t into said recesses, and

means for lrigidly securing said motor frame to said side,framiesv 13. In a vehicle, the con'ibination with a plurality ot side .trames having correspondn ingly disposed reces in the inner sides thereof, of a motoriranie having end portions adapted to fit into said recesses and bolts for rigidly securing said motor frame between said side fralnes to lconstitute a per- .marient cross-tie. j

Il. In a vehicle, 'the combination with a plurality of side iti-ames having correspomlfingly disposed semi-eircular reci 'is therev in, of a motor frame disposed between said side frai'nes and havin icuii-cylindrioil ciuils fitted into said reces and in is t., curing said motor in i ie fram e.

l5. In a vehicle. the con'ibination Wit i,

plurality ot' sid .trauma navi Limi. tra e `having; its om` tilted` into ceases, said motor freine being," local:

tirely below the upper surface of said side frames, and means for rigidly securing said motor frame to said side frames.

1G. In a vehicle, the combination with a plurality of side frames, of a detachable cross-tie rigidly secured between said side" frames, and a. removable magnetizable motor i core, cylindrical in form secured directly to said cross-tie. j

17. In a vehicle, the combination with aplurality of slide frames, of a cross-tie rigidly secured between said side frames, a stationary magnetizable field structure carried by said cross-tie, and a rotatable armature carried by said side frames.

1S. In a vehicle, the combinationwith a plurality of side frames, of a substantially semi-cylindrical cross-tie rigidly secured be- .tween said side-frames, and a laminated n'iagnetizable core supported by said crosstie. Y

19. In a vehicle, the combination with plurality of side frames, of a cross-tie rige idly secured between said side-frames, a laminated magnetizable core supported by said cross-tie, a rotatable armature coperating with said core, and meansassociated with Isaid side frames for supporting said armature. i

20. In a vehicle, the combination with a plurality of side frames having correspondingly disposed recesses therem, of a stationary Amotor frame havingends fitted into onei set of said' recesses and secured to said sidev frames, a motor armature, and bearingr niembers therefor fitted into the other set of re cesses and secured to said side frames.

21. In a vehicle, the combination with a plurality of side frames l'iaving correspondingly disposed concentric recesses therein, of a stationary motor frame having semi-cylinqeli-ical end projections and a concentric intermediate upwardly concave portioln' said end projections being;r adapted to be seated .in

one set of the recesses in said side frames, a cylindrical magnetiza-ble core member dis-y posed in said concave portion of said motor frame, bearing housings seated in the other set ot side frame recesses, and an armature mounted in said hi'iusings.

. 22, In ayehicle, the combination with a plurality of sid 'frames severally having a semi-circular recess in its upper edge` and a larger concentric semi-circular recess in the inner side thereof, a .motor frame having,r semi-cyliiulrical end. cated in said larger sido trame recesses, and means tor rigidly s wiring said motor frame to said side v.tra mos; of circular bearing housings adapted. to wat in ifliere fesses in the upper edges of said side trani meansbr snoring said liiuii'inigs to said side iframes, and a riitatable armature mounteifi .in said bearing" plurality of side frames having correspondmgly disposed semi-circular recesses in their upper edges and larger` concentric semi-crcular recesses in the inner edges of said frames, a motor frame having semi-cylindrical ends seated in said larger recesses, and means for rigidly securing said motor to said side frames, of a separable magnetizablelcorev seated in said motor frame in coaxial rela'- tion With said-concentric sidey frame recesses, a motor armature Within said core, and detachable bearing members seated in the recesses in the upper edges of said side frames for supporting said armature in coaxial relation with said core.

24. In a vehicle, the combination With a plurality of side frames and a half-frame member rigidly secured thereto, of a separable magnetizable `core seated in said member, and means coperating with said core and said member for rigidly clamping said` core in position. Y

25'. In a vehicle, the combination with a plurality of side frames and a member rigidly secured thereto, of a separable magnetizable core seated in said member, and

. means coperating with said core and the upper surface of said member for clamping said core rigidly in position.

26. In a vehicle, the combination with a body having a center-pin associated therewith, of a truck embodying side frames, a detachable cross member secured toy said frames, and means for locking said cross member against vertical movement relative to said frames, said cross memberbeing permanently associutedwith said centifa.'

27. In| a vemcle, the combination with a body,a bar, and a center-pin permanently ivotally associated with said bar and said body, of a truck embodying side frames, Ineens for locking said bar against vertical movement relative to said frames, and means for detachably securing said bar to said side frames. v

28.` In a vehicle, the combination with a body, a lurality of articulated driving trucks eacli embodying side frames, la Iplurality of pairs of driving Wheels, and a plurality ofmcchanically connected motors mounted thereon and disposed between the pairs. of driving wheels, vof means associated with the side frames of each truck and dis-v posed below the upper portions of said motors for -pivotally connecting said trucks to SaidbMly, one of said trucks having relativelongitudinal movement with respect to said body. c

QQ. The combination with a semi-cylindrical supporting frame having a seat therein, of an uncovered laminated magnetizable core of cylindrical' form disposed in said seat.

30. A motor field magnet structure com- 66 prising a single Jframe member having a of said frame and said core for clamping said y core rigidly 'in-position.

33. A dynamo-electricl machine comprising a frame having a semi-cylindrical seat, a core of magnetizable material positioned Within saidseat, and means comprising a.'

member attached to said frame and engaging a slot in said core for securing the latter in place.

34. A dynamo-electric machine comprising a lower half-frame having a semi-cylindrical seat, an uncovered laminated core of magnetizable material positioned Within said seat, and means for securing said core in place. A

35. A dvnamo-elec'tric machine comprisino' a lower half-frame having a semi-cylindrical seat, a laminated core of magnetizable material positioned Within said seat,- said core having substantially diametrically opposite grooves, and clamps adapted to en- Ckage said grooves and be clamped to sai'd frame for securing said core in place.

36. A dynamo-electric machine comprising a frame having a 4semi-cylindrical seat, a unitary laminated core of magnetizable material kdisposed in said seat and having longitudinal side grooves, and clamps adapted to engage said grooves and be clamped to said ,frame for holding the core in place.

37. The combination With a plurality of dynamo-electric machines having frames disposed in side-by-side relation, each of said frames having al plurality of lateral extensions, the extensions from one ofsaid frames being adapted to Vbe received between the extensions from the other frame, and a single member towhch all of said extensions are bolted for vpreventing relative movement between said frames. L,

38. The combination with va plurality of side-by-side supporting frames having registering lateral extensions, each of said frames having a semi-cylindrical core seat, core members of magnetizable material positioned within said seats, each of said core members having a longitudinal groove and an oppostely located shoulder member, said cores being assembled with said corresponding shoulder members adjacent,

a clamp for engaging each of said grooves and said frame, and a single member engaging both of said shoulders and clamped to said extensions for holding said cores in position.

39. The eombination'with a frame having` a semi-cylindrical coreseat, of a eylin drieal core positioned Within said seat and having the upper portion thereof exposed,

10 an armature positioned Within said core, "semi-eircu1ar end plates secured 4to the upper portionsof the ends of said core, and ineasing members secured to said end plates andsaid frame for inclosing the ends of said armature.

' 40. The combination with a supporting half-frame member, and an uneoveredlaminatedmagnetizablecore seated in said mem ber, of means cooperating with said core substantially` throughout its length and with Y the upper Surface of said supporting me1nber Jfor elamping tion. i

41; The combination with a supporting "hali`frame member, and a separable magnetizable eoreseated in said member and having" side recesses slightly above the upper surface of said supporting member, of clamping members dismsedin said recesses and-resting" upon the upper surface oit' said su mori-.infr member, and means for cousin(Tv said clamping members to exert pressure upon said core.

The combinationv with a supporting frame having 'L1-partially Cylindrical seat, and" :1 .separable cylindrical core member said core rigidly in posi- .inelosing one end of said frame.

seated therein and having a shoulder at substantially the level of the f fame, of a clamping member adapted to ooperate with said shoulder and said frame, and means for 4 clamping said member to said frame. 43. The combination with a plurality of side-byside supliorting frames having partially cylindrical seats, and Cylindrical magneiizable cores disposed in said Seats and 46 `having correspondingly located shoulders, oi a single member coperating with said shoulders, and means eoperating With said `frames and said member for clamping said cores in position. 50

44. The combination with Va plurality o sidebyside half frame members having seats therein, said magnetizable eores disposed in said seats, of a single member cooperating in common with said cores for rigidly positioning said cores insaid frame members.

45. The combination With a twin halfframe structure having a pair of seats there y in, and magnetizable cores disposed in lsaid seats, of means cooperating in common with said ores for rigidly positioning said Cores.

`416. hecombination with a half-frame member having a seat therein and a removable magnetizable eore disposed therein and secured thereto, of a easing eoperating with said core and said frame member for' In testimony whereof, I have hereunto subscribed my name this 24th day of Jan., 70

` GEORGE M. EATON.

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