US1698588A - Power-driven railway truck - Google Patents

Description

Jan. 8, 1929.'

W. J. HAGMAN PowRR DRIVER RAILWAY TRUCK 5 Sheets-Sheet 1 Filed June 24, 1925 .NNN

va-n. s, 1929. 1,698,588-

w. J. HAGMAN l K- v POWER DRIvEN RAIIILWAY TRUCK Filed June 24, 1925 5 sheds-sheet 2 Jan. 8, 1929.

' W. J. HAGMAN POWER DRIVEN RAILWAY TRUCK 5 Sheets-Sheet Filed June 24, 1925 Jan. 8, 1929. 1,698,588

w. J. HAGMAN PowER DRIVEN RAILWAY TRUCK Filed June 24, 1925 5 vSheets-Sheet 4 v WZZawwcfHdCgm/ww Patented dan. 8, 1929a WILLIAM J. Heisman, or maininerenteI 1 niinsxrairl-inrit.v

POWER-DRLVEN RAILWAY TRUCK.

Application filed June 24, 1925. Serial No. 39,353.

My inventionv relates to driving mechanisms, and it has particular relation to such mechanisms as are applicable to railway trucks.

One object of my invention is to provide a simple efficient drive for trucks, which is characterized by the absence of universal joints and complicated parts; by the ease oi' repair; and by its adaptability to presentday car trucks without necessitating material alterations in the same.

Another object of my invention is to provide means wherebythe thrustof thev driving element on the truck and car structure may be substantially neutralized. j

A further robject of my invention is to provide means whereby a proper working relation may be insured 'between the power device and the truck structure as the latter swivels relative thereto.

With thesel and other objects andvapplications in mind7 my invention further consists in the details of construction and operation and arrangement, hereinafter described and claimed and illustrated in the accompanying drawings, wherein y Fig. 1 is a detail side elevational view of a car body and supporting truck embodying my invention; Y

Fig. 2 is a horizontalsectional view taken on the line Il-H or" Fig. l; l

Figs. 3 and 4 are detail transverse sectional views taken on the lines III-IH and IV-[V, respectively7 of Fig. 1;

Fig. 5 is a similar view taken on the line V-VoiFigz2;

6 is a fragmentary sectional'vie-w of the neutralizing link and supporting bearing, the sectional plane beingtaken on the line Vl-VI of Fig. 2;

F ig. 7 is a similar view of the connecting rod and bearing, the. sectional plane being taken onv the lineVH-VII of Fig. 2;`

Fig. 8 isl an elevational view'ofl a modification, wherein the prinjiary source of power Ais a gas engine.; y

F 9 is a detail elevational view, partially in section, of the slidable gear box of Fig. 8 and mechanism directly connected therewith;

Fig. 10 is a plan view oi' the structure of Fig. 9; l

Fig. 11 is a side elevational view, partially in section, of the structure of Fig. 10;

Fig. 12 is a transverse sectional view taken on the .line XPXH ont Fig. 9; and

Fig. 13 is a view similar to Fig. 8, but showing a slightly modifiedconstruction.

Referring to Figs. 1' to 7, inclusive, a truck 1 of conventional design is mounted Onaxles 2 and 3 having pairs of wheels 4 and 55 respectively. The ends of the axles 2 and 3 are provided with cranks 67 and8-9 respectively. The cranks 6--8 and 7 9 may be respectively connected by sets of side. bars 11 `and 12 which are journaled on pins 13 extending from said cranks. The side bars 11 and 12 may 'be driven bya pair of power devices l14 and 15 which, for purposes of illustration, may take theform ofst'eam engines. Since the power devices 14 and 15 are substantiallyidentical in construction, the former only will be hereinafter Idescribed'in detail. y l.

rlhe power device 14l comprisesy a casting 16, a lower portion of which isformed into 'a cylinder 17' and a valve chest 18. The lat- 'tcr is respectively connected through flexible piping 19 and 21 to a Source of steam and to an exhaust port (not shown). The flexibility ot' the piping 19 and 21 eliminates the necessity for the usual universal joints withtheir attendant disadvantages. An upper portion 22 of the casting 16 is provided with spaced i shoulders 23 and 24 (Fig. 3) which slidably y engage'shoulders 25 and 26,1respectively7 ofka ing plates 28 and 29 to beams 31 and 32. A second pair of beams 33 and 34 in. cooperation with the supporting frame 27 serves to further support the power device 14. The pairs v frame 27 that is secured bylbolts and clampof beams 31-.32 and 33-34 are so mounted on a base portion 36 of a car bod'y37 of customary design, that said power device 14 may be 'moved longitudinally thereof. f The car body 37 and the truck are operatively associated by meansoi' a pivot pin 38, whereby the `truck 1 may swivel with respectV thereto. Y l A piston rod 39 extending from the'cylinder 17 is secured to a cross-head'41 which is slidably mounted on shoulders 42-.42 (Fig. 4) provided by the casting 16. One end of the cross-head 41 isl biiurcated and provided with a pivot pin'43 for a substantially horizontally positioned connecting rody 44, the opposite end ot' which is mounted on a pin 45 of a horizontally rotatable crank disk 46.

The connectinglrod 44 and crank disk 46 are thus operativeA in the swivelingplanel of the truck 1. When the truck 1 lain ination there n s for this slight` movement by a bearing of they is a slight relative movement between the connecting rod 44 and the pins 43 and 45 due to the vibration of the truck 1. 1n accordance with my invention, provision is made general form shown in Fig. 7, wherein the pin 43 is provided with a flange 47 which fits in a recess 48 formed in a base 49 ot a main recess 51, the latter being` in a lower arm 52 vof the bii'urcated portion of the cross-head 41.

An upper end 53 ot the pin 43 is of reduced diameter forming a shoulder 54 which engages an upper arm 55 of said bifurcated y cross-head portion. Y Intermediate the arms 52 and 55 is mounted a sleeve 56 having a spherical outer surface 57 which slidabl enOaOes i D CJ complementary surfaces 58 and 59 of opposite blocks 61 and 62.- Tlie former block is provided with a. shoulder 63 which engages a recess 64 in 'an end portion 65 of the connecting y rod 44. The end portion 65 as well as thev bearing blocks 61 and 62 may be secured t-ogether by bolts 66. A washer 67 may be interposed between the base 49 of the recess 51 and bearing.

lnecting rod 44.

a flared portion 68olf the sleeve 56. The remaining end of the connecting rod 44 is mounted on'the crank pin 45 with a similar The `above construction thus permits a slight rocking movement of the conlrod 39 causes 'the steam and exhaust pipes 19. andk21, respectively, to be .connected to the cylinder 17 in the usual manner. y

f-.As shown in Fig. 5, a housing 79 is mounted `on .atransversely extending strap portion 81 of the truck 1, and serves to enclose bevelgear-wheels 82 and 83. The bevel gear-wheel 82 is mounted on ak lower end of a vertical shaft section 84, an upper end 85 of which is secured to the crank disk 46.V A portion 86 A,of the shatt84 intermediate the bevel gearwheel 82 andthe crank disk 86 is journaled in abearing 87 formed by the housing79.

The shaft section. 84 may be mounted on a thrust bearing 88 of usual design in the base of the housing 79. Anoil groove 89 is formed intermediate the crank disk 46 and the rupper side of the housing`79by `means cfa flange 91 which extends up into` an annular recess 92m the adjacent side' of the crank disk 46.

The' bevel-gear-wheel 83 is mounted in the housing 79 onthe inner end of a horizontal shaft section 93, which is journaled in the housing 79 at 94. An outer end Vportion 95 of the horizontal shaft section 93 is mounted in a bearing 96 carried on one side 97 of the truck 1. A crank 98 is secured to a. projecting end portion 99 oit the shaft section 93,

and as particularly shown in Fig. 2, a crank pin 101 is proje-ctedthereirom so as vto extend into an aperture 102 in a block 108 slidably mountedfor vertical movement in a slot 104 formed in the side bar 11.

The block 103 may be resiliently centered by springs 105 and 106 which engage opposite races ot said block, the spring 106 being positioned in a recess 107 in the lower part of side bar 11. The upper spring 105 extends into a recess 108 formed. in a retaining cap screw 109 adapted to the upper part of the side bar 11, said upper part` being bored and threaded to receive the cap screw 109, whereby an adjustable torce may be exerted on the springs 105 and 106. When the power devices 14 and 15 are runningidly and the truck 1 is being carriedk along by the momentum ot the parts, the springs 105 and 106 assure the passage. of the crank pin 101 over the dead center in the proper direction.` rthe springs 105 and 106 valso serve to maintain the side bar 11 in resilient engagement with the block 103, thereby eliminating undesirable shocks and vibration.

My invention further contemplates means, whereby the thrust of the power device. 14 .on the truck 1 may be neutralized and whereby a correct operating relation between said power device `and said truck may also be maintained upon the swivelingof the truck. One method of accomplishing this desired result is illustrated in the drawing, wherein a neutralizing link 111 has the opposite ends thereof pivotaly supported in vbearings'112 and 113. The bearing 112 is carried by the end portion 78 of the power device, main casting 16 and the bearing 113 is mounted on a supporting member 114 carried by the truck 1. l

The bearing 113 ot which bearing 112 is a duplication is disclosed in detail in 6,

wherein a central bearing pin 115 is provided with a supporting flange 116 at one end httingwithin a recess 117 in the supporting structure. The pin 115 is provided with a curvedouter surface 118 which engaged by a bushing- 119 iitting within an aperture 121 in the end portion ot the compensating link'Y 111. The compensating link 111 maybe retained in position on the pin by means oi a clamping plate 122 and nut 123 on. the upper end thereof. Byv reason oit this construction, a slight relative movement is permitted between the compensating link 111 and the pin 115, whereby the vibration of the truck 1 may not be transferred'to the car body 37 through the compensating link 111.

The Vsupporting member 114 for the bearing 113 is mounted on the transverse portion 81 of the truck 1, so as to be eccentric with respect to the pivot bolt 38. v As a result, when [transmitted tothe side' bar 12.

' and 5, whereby the force' of the compensating link 111 may be absorbed equally for all oper-A ating/positions of the truck 1.

The power device 15 is operatively associated with the opposite side bar 12 through mechanism 124 which is substantially identical to that interconnecting the power device 14 and the side bar 11. A compensating link 125 isy also employed for the same purposes as the link 111. The crank 98 for driving the sidebar 11 and a crank 126'for driving thev side bar 12 are disposed in 90 relation.

When a main control rod 127 for the valve gear 76 is actuated so as to cause the passage ofsteam from the pipe 19 to the cylinder 17 the cross-head 41 is reciprocated inthe usual mannen As a result, power is transmitted therefromv to the wheel axle 2 through the connecting rod 44, crank ldisk 46, shaft sections 36 and 93, crank 93, side bar 11, 'and crank 6. Inasmuch as the control rod 127 is also connected to the valve gear (not shown) of the power device V15, power is similarly As noted above, the thrust of theconnecting rod 44 on the truck 1 and the casting 16 incident to the. operation Vof the power'device 14 is neutralized by t-he link 111, and the link 125 performs the same function for the power device 15. Moreover, when the car body 37 traverses a curve, the resulting swiveling of the truck 1 relative to the power apparatus 14' tends to cause the working relation therebetween to vary, but this is also avoided by the compensating link 111, and the link 125 performs the same Afunction for the power apparatus 15. 1n some cases, it may be more desirable to employ gas instead of steam as amotive fluid. rEhe application of my invention to such motive fluid is illustrated in Figs. 8 to '12, inclusive, wherein a gas engine 129 is mounted .on af forward end 131 of a car body 132. A transmission boX 133 'of usual design is pivotally mounted on bearings 134 and 135,

which respectively support shaft sections 136 and 137. A driving shaft 138 extends between the gas engine 129 and the transmission box 133.

T he shaft section 136 is connected through a gear boi; or soy-called power. device 139 with a crank disk 141 corresponding to the crank disk 46 of Fig. 1. rlhe crank disk 141 may be mounted on a swiveling truck 142 and it is connected with a side bar 143, as in the preceding figures. The power'apparatus 139 comprises a casing 144, which is mounted for longitudinal movement in yways 145 on the car body 132. A dependingport-ion 146 affords a bearing for a vertical shaft 147 the lower end of which carries a crank disk 148L and pin 149. A connecting rod 151 has one end thereof mounted onthepin 149 by means of a bearing 152 which is designed to permit a slight relative movement between said pin 149andsaid connecting rod 15.1. Theopposite end of the connecting rod 151 is mounted on a crank pin 153 by means of a similarbear- I ing 154..

The upper end of the vertical shaft 147 carries a bevel gear-wheel 155 which is adapted to mesh successively with bevel gear-wheels 156 and 157. The bevel gear-wheels 156 and 157 are mounted on an inner end 158'0f thel shaft 136 and spaced bya sleeve 159. Bearings 161 and 162 serve to support the'shaft end portion 153 immediately adjacent to the bevel gear-wheels 156 and 157, respectively, said bearings being mounted on a cover member 163 slidably mounted on the casing 144.

A hand wheel'164 is mounted on a shaft 165 which is jcurnaled in bearings 166 and 167 carried by the cover member 163 and it is provided with a threaded 'portion 168 which. engages a nut portion 169- of said cover member 163. Collars 171 and 172 `are spaced on opposite sides of the nut portion 169, so'that when the hand wheel 164 is turned in one direction, the cover member 163 is actuated to cause the bevel gear-wheel 156 to mesh with the bevel gear-wheel 155. W'hen thefhand wheel 164 is turned in the opposite direction, the bevel vgear-wheel '157 is carried tomesh with the main-bevel gear-wheel155. Thus, the direction of rotation of the shaft 147 may be controlled and hence the direction of movement of the truck 142. l

VWhen it is desirable rto control substantially simultaneously the direction of operation of the shaft section 147 of the power device 139 and a corresponding shaft section 173 of a powerdevice 174 (Fig. 8), the shaft 165 is splined at 17 5 to a shaft 176 which is adapted to move a cover member 177 and thereby control the direction of operation of the shaft 173 in the manner described alcove for the power device 139.v The splined connection 175 between the shaft sections 165 and 176 permits such relative movement Vbetween the v slidable power devicesv 139 and'174 as may obtain when the truck 142 swivels with respect thereto. l

The vertical shaft 173 is similarly associated with a side bar on the opposite side of the truck 142, but in 90o relation thereto. As will beV apparent, by connecting eachpower vdevice to one side only of the truck 142. the

lost mot-ion ofeach unit isabsorbed andI this isalso true for thestructure of the preceding i CII end is connected to a bifurcated end portion 179 of'a block'181' mounted on the truck 142. Thus, the thrust of the connecting bar 151 is neutralized. A similar compensating bar 182 is also providedl for the other power unit 174. The power devices 139 and 17 l are rei tained by thecompensating bars 178 and 182,

respectively, in proper working relation to the truck 142 as the latter swivels. The operation of this construction is otherwise as described for that of the preceding figures.

The structure illustrated in Fig. `13 is veryr similar to that set forth in Figs. l to 7, .inclusive, inasmucli'as a pair of steam engines 183 and 184 are employed rather than the gas engine l129 of Fig. 8. The general operation of this embodiment of my invention being substantially as described in said ligures, further description is deemed unnecessary.

Reference is here made to my co-peiiding divisionalv application, Serial lllo. 103,289, liled April 20, 1926.

While I have shown several forms of embodiments of my invention, for the purpose of describing the same and illustrating` its principles of construction and operation, it is j apparent that various changes and modificacally interconnected, a supporting truck.

tlierefor, a body, and a plurality of power units supported byrsaid body and operatively associated with said traction units, respectively, said power units being bodily movable relative to said truck when said traction units move in a predetermined manner.

8. A truck having a pair of axles, a body, and a pair yof power units slidably mounted on said body and operatively associated with said axles, respectively, said power units being movable upon the swiveling of said truck.

t. A movable structure having aplurality of axles, a pair of power units having a move-V ment different from said structure, and means operatively associating said power units and said axles, respectively, whereby power may be supplied to opposite portions of'said axles. f

5. A truck having a plurality of pairs of wheels, sets of side bars operatively associating said wheels, a body, a power device mounted on said body, and means operatively associating said power device and one set ot' said side bars, said device being movable upon the swiveling of said truck.

6. A structure having an axle, a. driving crank carried by said -structure, a driven crank, and horizontal and vertical shaft sec.- Vtions extending between said cranks.

8. In combination, a body, a power device a slidably mounted thereon, and a truck carrying a crank disposed eccentrically of the swiveling point of saidtruck, said crank and said device being operatively associated.

9. A truck, a structure having a pivotal connection therewith, a shaft disposed eccentrically of said pivotal` connection, and a power device having a. predetermined bodily movement relative tov said shaft operatively associated therewith. v

10. A movable structure, a body, means for pivotally mounting said body on said structure, a power device having a predetermined movement longitudinally of f said body, a driven element mounted 0n said structure, and means operatively associating said device and said element, said device bei-ng movable only when said structure isy turned with respect thereto.

11. A truck having a driven cranka body mounted on said truck, and a power device carried by said body having an operative connection with said crank, said device being movable bodily when said truck swivels with respect to said body.

12. A truck, a member, means for vpivotally interconnecting the same, a driven element, a power device mounted on said member, means for operatively associating said device and said driven element, a traction element, and mechanism operatively associating said driven element and said traction element, said device being movable .bodily relative to said truck upon the swiveling thereof. p

13. A truck having a traction element provided with a crank, a second crank operatively associatedtherewith, a third crank having a driving connection with said lsecond-crank, and a power device operatively associated with said third crank, said device being movable when said truck isvmoved in a predetermined inanner.

14. A truck having a pair of axles, side bars interconnecting corresponding opposite ends of said axles, a member pivotally mounted on said truck, a power device mounted on said member, and mechanism for interconnecting said power device and one set of said side bars, said device beingV bodily movable only when said truck swivels.

15. A truck having pairs of axles, the eppesite ends of which are respectively interconmounted for slidable movement only when said vtruck swivels, and mea-ns for operatively connecting said power device with one of said sets of side bars.

16. A movable structure having a pair of axles, sets of side bars for mechanically interconnecting corresponding opposite ends of said'y axles, a power device, means for operatively associating said device and one of said sets of side bars, said means including avertical shaft, and a second power device having a connection lwith the other of said sets of side bars, said devices being so movable relative to said structure as to maintainvcorrect working conditions for various positions of said structure. f A

17. In combination, a car body, a. truck movable relative thereto, a pair of axles, sets of side bars respectively connecting'l corresponding ends of said axles, a pair of motors slidably mounted on said car body, and shafting interconnecting said motors and said sets of side bars, respectively, said motors being movable only upon the swiveling of said truck.-

18. In' combination, a sup-portingbody havy 19. A truck supporting horizontal and ver-f `tical shaft sections, an axle positioned tobe driven by one of said shaft sections, a driving motor operatively associated with the other of said shaft sections, said motor being bodily actuated when said truck is moved in a prede-v termined-manner. A

20. A truck having a pair of axles, side` bars respectively connecting corresponding ends of said axles, shafts including horizontalV and vertical sections respectively connected to said side bars, anda pairof power devices having a driving connection with said shafts respectively, said power devices being bodily movable upon the swiveling of said truck.

2l. A movable member, a bodily movable power device, and means whereby said power device may be actuated relatively of vsaid member upon a movement of the latter, said means comprising ari-element positionedin the plane of mov'ement of said member.'

22. A movable structure, a bodily movable power device, and a neutralizing link operav tively associating the same and adaptedto 'cause a movement of said device upon a move-l ment of said structure. Y -A 23. A swiveling structure, a longitudinally movable power device, and a member pivotally mounted on said device` and said structure, whereby said power device may be tion between said engines andsaid truck.

moved upon-the swiveling of said structure. 24. A movable power device, a swiveling truck, and a link adapted, to cause a bodily movement of 'saiddevice upon the swiveling of said truck.

25; ln combination, av swiveling structure,

a bodily movable power device, and a compensating member, the endsof which are mounted f on said power Vdeviceand said structure, thel latter mounting'being-eccentric tothe swivelingpoint of said structure.

26. A truck having a swiveling pin, a body carrying a movable power device, and a oompensating link having the ends thereof pivot-l c i 28. ln combination, a swiveling truck, a

slidable `engine,-a crankonthe truck, a con-. y necting rodextending between said crank and f said engine, and neutralizing means forpre` serving the proper Vworking relation; between said enginer and said 'truck' asthe latter swivels.

29. ln combination, a swiveling truck, a

body, twov reciprocating. engines movably; supported by said body, a pair of crank shafts mountedy on said truck adapted to be actuated by said engines,y respectively, saidy engines having 90.D relation one with the otheigand meansfor insuring a desired operating rela-'- 3,0.. A swiveling truck, apair of reciprocating power devices having driving connection with said. truck and movable relative thereto,` t means for maintaining said devices in re-y lation one with the other, and means for main. taining the desired operating relation between said devices and said truck when the latter.- swivels.` Y Y 3l. ln a device of the class described, a truck having driving wheels, a vertical shaft, a horizontal shaft, gearing for associating said shafts, a side bar for operatively associating said driving wheels, and crank mechanism foi-interconnecting said side bar and said horizontal shaft section.

32. ln combination, a car'body,`a supportf ing truck, power apparatus having a drivingA connection with said truck slidably'mounted' on said car body, means for insuringa proper working relation between said powerV appa# ratus and said truck as the latter swivels,l and means for controlling thedirectionof 'operation of said powerapparatus.

33. In combination, a body, a supporting truck, power apparatus having a driving connection with said truck slidably mounted on said body, means for insuring a proper working relation between said power apparatus vand said truck as the latter swivels, and means carried by said power apparatus for controlling the direction of operation thereof.

84. A truck having a pair of spaced wheels interconnected by a side bar, said bare having a recess, an apertured block slidably mounted mounted on said supporting member, said motor having a driving connection with said thereof.

swiveling structure, means for insuring a proper driving relation between said motor and` said swiveling structure as the latter turns, and flexible means for supplying energy to said motor.

36. In combination, a swiveling structure, a supporting structure, a motor slidably mounted on saidv supporting structure, said motor having a driving connection with said swiveling structure, means for insuring a proper driving relationbetween said motor and said swiveling structure as the latter turns, and flexible piping operatively associated with said motor.

37. A swiveling structure, a supporting structure, a power device bodilymovable on said supporting structure, a link having one end pivoted on saiddevice, and a casing constituting the quadrant of a sphere aording a pivotal mounting for the end of said link,

said casing being mounted on said swiveling structure.

38'. A device of the class described comprising a car body, a truck having driving parts, a source of power attached to said car body, and meansfor operatively associating said source of power and said driving parts, saidmeans including connecting rods positioned to move in a horizontal plane.

39. car body, a truck having driving parts, a source of power attached to said car body, and means for operatively associating said source of power and said driving parts, said means-including connecting. rods positioned to reciprocate in the swinging plane of the truck.

40. A swiveling structure, a supporting structure, power apparatus movable on said supporting structure, a link havingy one end mounted on said power apparatus, and means for mounting-the other end of said link on said swiveling structure, wherebyV the force thereof on said swiveling structure may be absorbed equally for all operating conditions 4l. In combination, a truck having a vertical driving shaft section, a car body mounted on said truck, and a power device for actuating said shaft section somounted on said car body as to have a substantially ylongitudinal movement upon the swiveling of said truck.

42. In combination, a truck, a body movably mounted thereon, driving means mounted on said body,y and means constituting a drivingconnection between saidfirst-mentioned means and saidl truck, said second-mentioned means being operative in substantially they swiveling plane ofv said truck.

43. In combination, a truck having driving parts, a car body, a source of power carried by said car body, means for operatively associating said source of power and said driving parts including a rod operative substantially in the plane of movement of the truck, and means for insuring a proper operative relation between said-truck and said stantially the plane of the truck movement, and a compensating link also operative in the.

plane of movement of the truck.

45. A body constituting a movablesupport for a powerdevice, a supporting truck for said body having driving parts including a crank, a connecting link for operatively associating said power device and said crank, and Aa compensating link for insuring a proper operating relation between said power device and said crank, theflatter and said links," being operative in substantially the plane of movement of said truck. f v

46. A truck having driving parts, a body supported thereon and providing a movable support fora power device, a connecting rod extending between said power device and said driving parts, and means for so mounting said connecting rod as to minimize the transfer of truck vibration by said rod toV saidbody.

47. A supporting body having driving parts including interconnected vertical and horizontal shaft sections, an axle operatively associated with one of said sections, a crank mounted on the other section for operation in substantially the plane of'movement of the supporting body, a motor mounted for longitudinal movement relative to said supporting body, and means also operative in said plane for operatively associating .said motor and said crank.

48. A supporting body having drivingV parts including interconnected vertical and horizontal shaft sections, an axle operatively associated with one of said sections, a crank mounted on the other section for operation in substantially the plane of movement of the supportingbody, a. motor mounted for llongitudinal movement relative to said support-` ing body, means also operative in said plane for operatively associating said motor and said crank, and a compensating link extending between said motor and said supporting body so as to insure a. desired operating rela-y tion therebetween.

49. ln combination, movable power apparatus, a movable truck, and a link operative in substantially the plane of movement of said truck for insuring the bodily movement of said apparatus upon a movement of said truck, said link being so mounted as to minimiZe the transfer of vibration by said link from said truck to said motor.

50. In combination, a sWiveling truck having driving parts including vertical andhorizontal shaft sections, a. body, a plurality of lmotors movably carried by said body, means for operatively associating' said motors and said driving parts, said motors being in 90 relation one With the other, and means for insuring a desired operating relation between said motors and said truck, said means being positioned in one or more substantially hori- Zontal planes.

51. A truckhaving a pair of Wheels interconnected by a side bar provided with a recess, an apertured block slidably mounted in said recess, means for resiliently centering said block, means for adjusting said ii'rstmentioned means, a driving sha-ft, and means for connecting said shaft to said block.

52. A truck, a car body, a motor movably mounted on said body, said truck having driving parts, means for connecting said motor andsaid driving parts positioned in substantially the plane of movement of said truck, means for insuring the desired operating relation between said motor andv said truck, and leXible means for supplying energy to said motor.

WILLIAM J. HAGMAN.

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