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' Feb. 22,"193‘8~ H, M, PFLAGER I _ 2,109,276 RAILWAY VEHAICLE STRUCTURE ' l ‘ Filed Jan. 12, 1955 5 sheets-.sheet 1 ____ 20 Feb. 22, 1938-.l H. M. PFLAGER 2,109,276 RAILWAY VEHICLE STRUCTURE Filed Jan. l2, 1955 5 Sheets-Sheet 2 \ @I INVENTOÈ ?’rr HEY *Feb- 22, 1938. H. M. PFLÁGER _ 2,109,276 RAILWAY VEHICLE STRUCTURE Filed Jan. 12, 1935 5 Sheets-Sheetß Feb. 22, 1938. M. PFLAGER RAILWAY VEHICLE STRUCTURE Filed Jan. 12, 1935 2,109,276 » 5 Sheets-Sheet 4 Feb. 2z, 1938 H. M. PFLAGER RAILWAY VEHICLE STRUCTURE> Filed Jan. l2, 1955 67 6/ 66 2,109,276 5 Shee'tS-Shee’ß 5 2,109,276 ‘i Patented Feb. 22, 1938 A uNiTi-:o STATES> PATE-NT OFFICE vRAILWAY VEHICLE srnUc'rUnE Harry M. Piiager, St. Louis, Mo., assigner to Gen .eral Steel Castings Corporation, Granite City, lll., a corporation of Delaware A ' Application .tammy 12, 1935, serial No. 1,481 (Cl. 105-4) `rinother object of the invention is to provide an This invention relates to railway rolling stock 36 Claims. and consists particularly in novel supporting structure for the end of a railway vehicle. There is an increasing demand for light weight 5 trains having cars in which the total weight of a car and its lading is so light that the car can be carried on two pairs of-wheels and two axles. To meet this demand, light weight trains of ar ticulated car construction are being built with a. four-wheel truck under the leading end of the first car and a four-wheel truck under the rear end of the last car, with the adjoining ends of adjacent cars carried on one truck of the usual four-wheel type in common use on railroads. These trains operate satisfactorily under nor mal conditions. In the event of a hot box or de fective journal, wheel, or any other truck part, articulated car or train _assembly in which one car can be added to the train or taken out of the train readily and independently of the ad jacent cars without requiring cranes or `special 5 trucks, and without duplicating for each of the adjacent car ends the truck structure previously provided for the two ends as an assembled unit.. Another object is to provide a car body and two-wheel truck construction in which the load 10 I of the car is transmitted from the car body equally to longitudinally spaced truck holsters mounted on elliptic springs swingingly supported by the truck frame and in which the truck-frame is supported by shock absorbing springs mount 15 ed on the journal box, the object of the swinging arrangement for the vholsters’ and the elliptic the entire train must be set on a side track until springs being to provide lateral swinging move-' provisions can be made for raising the car body _ ment of the car body relative to the wheel or _ or cushion transverse shocks and removing the defective journal, wheel, etc., » track so as to absorb 20 and the entire train is out of service until it can when „cars are rounding curves or due to irregu be repaired. »It is> impossible to separate the train or to add a car or take a car óut o_f the train without taking the train to the shop where 2o - larities of the track. This is accomplished by providing a car body ì with means on the ends of cars for coupling to an adjacent ear, said car body being carried at 25 f it can be jacked up and the car moved on tem each end'on a. two-wheel truck by pivoted con porary trucks or another car on temporary trucks nection on one side of the axle and a slidable added to the train. I am aware that in _Europe many light weight ' bearing at two points on the other side of 'the passenger cars are carried on two pairs of wheels axle, providing a three-point bearing swiveling 30 -and axles, there being one pair of wheels and an axle near each end of the car. The axles and boxes are mounted in rigid pedestals secured to the car body. Semi-elliptic or other springs are usually mounted on the axle boxes to support the car body. i This construction, however, does not `give satisfactory riding qualities because the ver tical shock-sare transmitted to the car body di rectly through the springs mounted on the axle truck under each end of the car. The truck is 30 provided with two holsters, one on either side of the axle with pivotal point and bearing prefer--ably cn said holsters, said holsters being sup ported near their ends on springs, which springs are mounted on spring planks which in turn are` supported on swing hangers from the . truck frame, said truck frame being supported by other' springs interposed between the journal _Y ' boxes and horizontal shocks are delivered boxes and the truck frame. Another object is to obtain practically the 40 o through the pedestals directly to the body. The » car body cannot swing laterally relative to the same functioning --of adjacent trucks, individual wheels or track, the same as cars with ordinary to their respective cars, as is had on an articu swing motion trucks, so as to absorb or cushion the transverse forces when the cars are rounding a' curves and to absorb- transverse and _vertical shocks due to irregularities in the track.y The main object off-the present invention is to provide a car mounted on a pair of lateral motion trucks. one atv each end of the car, at least one, but usually both, of said trucks having but one axle and va pair cf wheels, the car having the same easy riding' qualities attained byfthe use lated train where the adjacent ends Íof two cars are mounted on'a single truck. This ,is accom plished by connecting the ends of the carste gether and having the two adjacent two-wheel ’ trucks, coupled together, Vholding the two truck frames in alinement whereby they act as a single .four-wheel truck. ~ . In cars of this construction'by coupling two adjacent trucks under each end of the car, thetrucks will act as one four-wheel truck, main of ~the swing motion four-wheel or six-wheel ` taining both truck frames tangent to the track. truck now- commonly used on cars in the United States and Europe. This is accomplished by connecting the two truck frames together with hooks, links, orvother sim- 55 2 2,109,276. ilar arrangement whereby theitrucks may be con nected ordisconnected readily in y'ards or sta tions. These and other more detailed objects are at tained by the structures illustrated in the ac 1 . ' transverse transom or bolster 2i, an end sill 22, end sill. Bolster 2i is provided with a, center plate „24 varranged to seat in the truck center" plate I l. shown in Figure 1 and is taken on the line 2-2 A center pin or king pin (not shown) V f i passes through center plates i4 and 24 and the truckpivots about the common axis of the center ~ plates. The end sills are provided with side bearing elements 25 arranged to slidably engage Figure 2a is an enlarged detail side view of the adjacent ends- of the two trucks showing the - the truck side bearing elements I 5. Y By~inclin- ‘Flgure 3 is a transverse vertical section'taken approximately on the line 3-3 of Figure 1.. Figure 4 is an end elevationv of `one-half of the front of the truck and underframe assembly shown _in Figures l and 2. 'Figure 5 is a tcp view, and Figure 6 is a side 25 , and side members 23 connecting the bolster and thereof. "~ « 'I‘he only part >of each car body illustrated is the end portion including the center s_ill 20, the the adjacent car, and also showing the two wheel truck beneath said underframe. means for interconnecting the same. «. the truck, the truck frame is held stably against Figure 2 is in part a longitudinal vertical sec tion and in- part a side elevation of the structure 15 ' undue rotation about its axle i. Figure 1 is a top View of one two-wheel truck of one car and of the end of the underframe of 10 . plate or bearing I I and the two side bearings I5Y form avthree point support -for >the end of the car body,'- and when the car body is applied .to ' companying drawings, in which- Í ing the opposing faces of elements I5 and 25, as shown in Figures 3 and 4, the same act (through the spring mounting of their supporting bolster) 20» to yieldingly resist relative transverse movement of the truck and underframe thereby functioning A elevation of a modified arrangement o_f side bear-- ' as a centering device. 'I’hls three-point mount of lthe car body on the truck ~stabilizes the ing which may be used in the assembly illus-v_ ing car, giving equal loading on 4each of the journals. trated in the other -figures. ^ Figure '7 is a plan of a curved section-of track 25 Stops 26 and 21 on the body underframe and showing the position of the two adjacent trucks. truck transom, respectively, are disposed to op 4of one car in the position which would be assumed 30 in operation on such a curve. _ Figure 8 is aside elevation- of the structure shown in‘Figure 7. Figure 9 is a top view, and Figure 10 is a side view of the adjacent ends of two trucks showing 35 a Vmodified means for interconnecting the same. Figure 11 is a'tcp view of a modified form of truck. ~ `- Figure 12‘is a side elevation of the same. Figure 13 is-.a longitudinal jvertical section 40 _taken onthe line I S-II of Figure l1l and show Xing also a portion of the body structure. Figure 14 is a transverse vertical-section taken approximately on the line M-II of Figure 11 and showing also a portion of the body structure'. pose each other so that they engage at a prede termined point to limit the relative pivotal move ment of the truck and body. - ’ 30 A coupler 29 is mounted on the end of the underframe beneath the upper portion 28 thereof _ and preferably this coupler is constructed and ar ranged so that the car may be coupled tc the ordinary railway car now in general use, as well as to another car of identical construction. Preferably the two trucks are interconnected so that they may be held in alinement, or, in other words, so that their axles may be held parallel and act as the two axles of a four-wheel truck in riding over curved track. v -The right hand outer corner of each truck is provided with a pivotedl link 3l with.y a' hooked 45 Figure - 15 is a top view of another form of outer end, and the left hand outer corner of each truck is provided with a pin 4l adapted to`be _ truck. Figure 16 is a vertical» longitudinal .xsection‘ ` engaged by the hook or link 3l. A locking'pawl bled position. taken on the line' i¢--|¢ of Figure`15 and show ~ Il holds the hook and pin in vThe pivotal mounting of link Il may include an body structure. y ` Figure 17 isa vertical transverse section taken elongated slot for >the mounting pin I2 toI provide approximately on vthe line I1--~|1 of Figure 15 ' for some play between the frames and'particu‘ gunrd showing alsov a portion of the body struc larly to accommodate a condition. as illustrated- . ingv also a portion of the 60_ in Figure '1, wherein the distance D between the ' i Eachof the trucks illustrated supports the end 55 of the corresponding vehicle independently of the other truck. Each truck includes. a single axle l, mounting a lsingle pair of wheels 2, carry- ' ' ing Joumal boxes I. , 'I'hese boxes are illustrated as of' the roller bearing type, but this type of box -is not essential. vlllach box forms a seat for. a group of 'preferably coiled springs I -and the truck frame is iyieldingly supported by these springs. Each truck frame includes wheel pieces ' I and a pair of transoms 8-8 and 1-1 at each - -65 two center pins4 is slightly less than the» distance between the center pins when the cars are on .straight track. . ï ' . Y ' When adjacent trucks are not-coupled to gether, links-I9 will be turned back on the truck frame towards' the Journal'box where theyáwill ' not interfere in any way with the operation of the v truck when connection to an adJaicent truck is co not desired. ` - Figures 9 and 10 illustrate a'modined connec-w tion between the trucks in_which the right hand end, respectively. VPedestal jaws 8 depend from outer corner- of each truck >has aïpivoted link 48 wheel pieces 5 and slidably embrace the journal consisting of an eye v“_a, a hook IIb, and a turn .65 boxes. A pair of swinging hangers 9 depend from buckle u. Eye “a and hook “b are threaded each pair ci.' transoms and `pivotally support a‘ - as indicated (the threads on one being right -spring plank- Il .mounting- thejleai' springs Il. ’ Bolsters vI2 and Il are carried bythe spring - spectively.v _Bolster VI2 is provided with a center hand and the threads _on other part being ‘ left hand) . The turnbuckle mayincludeían?outwardly pro jecting arm> I! for rotating it,l and a weight I6 plate'> Il, and bolster I3 is vprovided with side `on the outerendof the- arm will prevent the 'bearings Il spaced‘transversely of the longitu -buckle from turning accidentally and .loosening - ` 75 amai center une of the vehicle. The center the connection because of'iars and other motions ’rs 2,109,276 of the truck. This link may be held in position by the locking pawl 41 or any . other , locking means. o l ` ~ f The arrangement of the center plate and side bearings on independently swinging truck bol-~ sters provides for lateral swing of the car rela tive to the wheels and rail and for pivotal move ment of the car bodies relative to the trucks and rail, and cushions the forces transmitted from 10 the rail to the body of the car. While this ar rangement is substantially different than that used for the usual four and six wheel trucks in ` 3 tionsÍ independently of- the spring‘suspension of the truck at the opposite énd of the car. The ‘ end portions of the car bodies and their trucks can be disengaged and each car can be moved valong the track independently of other cars and hence the advantages of easily associated units are retained. The truck structure and adjacent body structure for the articulated unit is simpli fied without foregoing any of the advantages of the lateral motion four-wheel truck now used in 10 articulated car structure for supporting the ad jacent ends of two car bodies. ^ While each of the trucks illustrated is shown as provided with means for securing the same 15 ties are obtained because the holsters are pref- ' to an adjacent truck whereby'the two trucks erably supported on elliptic springs and the form the equivalent of a four-wheel truck having truck frame is „ preferably supported on coil a rigid frame holding the axles substantially par which there is a single body support located be tween a pair of axles, yet the same ridingvquali springs similarly to the arrangement in the usual four and six wheel trucks. » ' ~ Whilethe center plate I4 is at the, inner end of the truck and the side bearings I5 are at the outer end of the truck, it will be understood that this arrangement may be reversed or, in other words, the truck may be rotated 180 degrees 25' and the car center plate 2l located on the end' sill with any of -the constructions described. allel and resulting in the wheels being maintained tangent to curved track, it is to be understood that all features of the invention are not limited 20 to the use of interconnected trucks as illustrated. The truck coupling links may be omitted and the cars operated with each truck free to pivot on its car body independently of the other truck. Figure 7 illustrates diagrammatically the in 25 clination of each truck relative to its body when The modified side'bearing illustrated in Fig the car is on curved track and also illustrates ures 5 and 6 includes a box 30, near the end of how the connecting links forV the two-wheel the truck bolster 3l, which journals a roller 32 30 which supports the body- side bearing plate 33 trucks causes them to function as a single four Wheel truck. , mounted -on the underside of the end sill 34. Rocker or roller centering devices similar to This provides an anti-friction side bearing and the centering feature is eliminated. The' body side bearing or the adjacent portion of the body those in > general use may be substituted for the 35 underframe may include stops 35 arranged to engage the sides oflthe box 30 on the truck bolster and thereby limit relative lateral move friction center device illustrated. The body underframe or platform structure, the truck frame, the holsters, and the spring 35 planks are each shown as comprising a one-piece casting and this structure is preferred because of its simplicity, strength, and the possibility of ` ment of the truck and body. Another arrangement is shown in Figures 11 ` distributing the vmetal most advantageously ac cording to the forces applied to the diiferent parts 40 40 to 14 in which the truck includes a single axle50 and spaced swinging holsters 5| at opposite and of shaping the contours of the elements to sides of the axle but a brace member 52 is rigidly accommodate adjacent parts of the assembled secured to both of the swinging'bolsters and structure, but the invention is‘not dependent upon . this type of integralcasting structure. provides for their movement as a unit trans The structures illustrated may be modified other versely of the truck while the holsters may have than as shown in many _of the details without relative vertical movement in response to the . spring action and the inclination of the car body. -- departing from the spirit of the invention, and l The left hand bolster has the center plate 53 the exclusive use of such modifications as come forming one point of support? for the car body, and the right hand bolster has the two inclined side bearings 54 forming the other two points of support and constituting a centering device for the truck. _ ’ In this construction, the truck frame 55 is supported upon the journal boxes 56 through leaf springs 5l and the bolsters 5| are carried on the spring planks 58 by means of coiled springs` 59. within the scope of the appended claims is con templated., _60 I claim: " . 1. In a railway vehicle, >a body, and a two wheel truck-carrying one end_of said body inde pendently of other trucks, said truck comprising a frame mounted on the wheels, and structure 55~ carried thereby and movable laterally thereof and inc_ludinga three point support for said body. While either end of the truck may be adjacent to the front -of the car, the location of pins 60 2. In a railway vehicle, a body structure, and a two-wheel vtruck including a frame and> spaced indicates the forward end of the truck. holsters mounted to swing in said frame, each` , Figures 15 to 17 illustrate a truck resembling -of -said bolsters having an individual element that shown in Figures 11 to 14 in having the directly engaging and' supporting said body _ two swinging bolsters 6I and 62 rigidly connected. _ structure. 3. In a railway vehicle, a body, and a‘two by brace member B3 whereby the swinging bol sters will move as a unit transverselyy of the truck. But in this form of the invention, the pivotal connection between the truck and body wheel truck including structures supportably en 65 gaging one end of said-- body at points spaced apart longitudinally of said bcdy, the s'upportl comprises a pivot structure 64 located interme diate bolster-s 6| and 62 and having no support ing function. The car body 65 is supported on ing structuresswginging laterally of .the- _truck the three -bearings 66, 61, and 68, bearings 6B, 4. In a railway vehicle, a body, and a -two A61 and 68 being inclined to provide the centering wheel truck at each> end of said tbody, each truck including spring» mounted structure forming a feature previously referred to. ’ In each'form of the invention, the spring sus pension of the truck atA one end ofthe car func and vyielding vertically independently >of each other. ’ f . ` ' ` .three point'supportforlthe adjacent portion of said body, and said structure of each truck be 70 1.5 _ 2,109,276 ing movable transversely of the truck independ ently of the structure of the other truck. 5. In a railway vehicle, a two-wheel truck in cluding a single axle and a frame tilting about said axle, structures located forwardly and rear wardly of said axle, each of said structures hav ing independent yielding support on said truck frame, a body end structure supported on said structures and pivotally ~connected with one of said structures so as to provide for relative swing ing in a horizontal direction about- the same.y 6. In a railway vehicle, a body, and a two-wheel truck including a plurality` of' swing holsters . spacedy longitudinally of the vehicle,- and indi 15 vidual elements on said holsters engaging and supporting one end of said body. '7. In a railway vehicle, a body, and a two wheel truck including a plurality of relatively movable holsters spaced longitudinally of the ve 20 hicle and'supporting one end of said body, one of said holsters having a body support element intermediate its ends, and the other of said bol sters having body support elements spaced apart longitudinally of the bolster. 8. In a. railway vehicle, a body having trans versely spaced support elements and a single sup with said single body support element. v . 9. The combination of a car body having a coupler at its end andl a -two-wheel truck in cluding a plurality of swing holsters individually engaging and supporting the end portion of said ried thereby, a frame supported by said springs Aand extending therefrom transversely of said axle, structures supported by said frame forward ly and rearwardly of said springs and movable transversely'of said frame, springs carried by each of said structures, and individual body en 15 gaging and supporting elements carried by said latter-mentioned springs. - ` _ v 17. In a two-wheel truck, an axle, springs car ried thereby, a frame supported by said springs land extending therefrom transversely' of said 20 axles, depending links pivoted on said frame vfor wardly and rearwardly of said springs and swing ing transversely of said -frame, springs carried by said links, and body engaging and supporting elements carried individually by said latter-men ‘ ' 18. A two-wheel lateral motion truck having a plurality of relatively movable holsters,A there be ing a body supporting element on one of said holsters and a plurality of body supporting ele ments on another of said holsters. ` 30 _ 19. In a railwayltruck, a plurality of holsters movable relative toeach other transversely of the truck, elements on both of said holsters for supporting a vehicle body, one of said elements ' ' _ ' movable holsters, body supporting elements on 10. 'I'he combination of a car body and a two one of said holsters spaced from the longitudinal 40 wheel truck, said car bodyhaving a bufl’er beam ` center line of the truck, and a body supporting at one end and a coupler mounted on said buffer element on the other of said holsters-at the lon-. gitudinal center line of the truck. as speciñed in claim 20 which also includes- a rigid longitudinal connection between the holsters. 22. A_two-wheel lateral motion truck having body supports` for engagement with said trans a plurality of relatively movable holsters con structed and arranged to support a car body at three points on said holsters, there being means for pivotally connecting the truclr- to a vehicle versely spaced bearings, and -theother of said holsters having a single body support for engage ment with said single bearing. , ' ' 11. A two-wheel truck having a plurality of body at a point intermediate saidbolsters. ~ 23. In a railway train,. a plurality of car holsters each supported near the sides oi' the truck and' having independent lateral motion and bodies directly »connected together, individual 55 arranged to support a car body at three points. two-wheel trucks under the _end portions vof said bodies, each truck having a single axle, a frame and a bolster movable thereon, the adjacent trucks being connected together so that the axlesl 12. A two-wheel lateral motion truck having a - plurality of swing vholsters spaced longitudinally . of the truck and adapted to support a car body _at three points. - Q of said trucks are- rigidly held substantially par-~ 13. A- two-wheel lateral motion truck. having a pair of spaced swing holsters arranged so as to provide a truck center plate at one md ofthe . allel to each other. directly connected together, individual two-wheel trucks under the end portionsy of said bodies, the other end of the truck. 14.v In a two-wheel truck, a frame;` holsters the trucks under» the end portions ofthe adju-_ cent bodies being rigidly spaced from each other so that the-wheels of said’trucks vwill extend sub spaced longitudinally of the truck, swing hang ers supporting said holsters from said frame, one , stantially tangent to curved track. of said holsters having a center bearing, and the other bolster- having body ‘supporting elements ' ‘ each end connecting the ends of said side mem bers, a'bolster between each pair o! transoms, one ‘ A 25. In a railway train, a plurality of car bodies 70 spaced transversely ot the longitudinal center ` 15. In a two-wheel truck, a frame having side ’ members with pedestals,-_a.pair of transoms at 60 24. In a railway train, a plurality of car bodies truckvand transversely spaced body supports- at line of said truck. ì _ 21. A lateral motion truck having _structure bearings, said truck having longitudinally spaced swing bolsters,`one of said holsters having spaced 65 _ 16. In a two-wheel truck, an axle, springs car 20. In a railway truck, a plurality of relatively 45 ing spaced inwardly of said transversely spaced 60 porting said holsters. also constituting a pivotal connection fo‘r _the beam, transversely spaced bearings on the under side of said hufl'er beam, and another singlebear vso hearings for supportingu the car body and ar ranged to permit lateral movement of said truck relative to the car body, and- swing hangers sup vehicle body. body adjacent saidcoupler. 40 swiveling motion of said truck about said bearing, ’ the other bolster having ‘transversely spaced tioned springs. port element spaced therefrom longitudinally of the vehicle, and a two-wheel truck having rela tively movable holsters spaced apart longitudinal 30 ly of the vehicle, one of said holsters having bear ings for engagement with said transversely spaced body support elements, and the other of said holsters having a bearingfor engagement 35 of said holsters having a single body supporting bearing intermediate its ends arranged to permit _ directly coupled together and having individual two-wheel trucks undertheir adjacent ends, each- 70 truck having a single axle, a frame and a bolster movable thereon, said trucks being connected . together so- that the axles of saidvtrucks will he . rigidly held substantially parallel to leach other and so that the wheels of said trucks will extend 5 2,169,276 in a line substantially tangent to the track when the cars are on a curve, each of said trucks be ing constructed and arranged to independently support the corresponding end portion of each car body when the cars are separated. 26. In a railway train, a pair of car bodies coupled together at their adjacent ends, indi vidual two-wheel trucks under the adjacent end portions of said bodies, said trucks including 10 structure arranged to provide for 'lateral mo tion of the wheels and axles relative to said bodies and being coupled direct to each other so that the Wheels extend in a line substantially tangent to the- track when lrounding curves, said 15 lateral motion `structure having means cushion ' ing the lateral forces between the Wheel iianges and the body. 27. In a railway train, a plurality of car bodies directly connected to each other, individual two 20 Wheel trucks for said bodies under adjacent end portions of said bodies, each of said trucks hav ing ‘a single axle, a frame and a bolster movable thereon and being constructed and arranged to pivotal connection for said ybody, and lanother member connecting' said first-mentioned mem bers so that they move as a unit transversely of the truck. , . 31. In a two-wheel lateral motion truck, an axle, lateral swinging members on each side of said axle, said members including individual ele ments for supporting engagement with a ear body, and another member connecting said ñrst mentioned members so that they move asa unit transversely of the truck, there being means >on said second-mentioned member forpivotally con necting the truck to the vehicle body at a point above said axle. . 32. Structure as described in claim 31 in which 15 said pivotal means is located at a point inter mediate saidA first-mentioned members. . . 33. In a railway vehicle', a body including a. -rigid underframe, and a two-wheel truck.- carryf ing one end of said- body and having a frame and 20 structure yieldingly supported thereon to move laterally of the truck wheels and including three triangularly spaced support elements directly en pivot on said body and each frame being ar- » gaging said body underframe. 25 ranged to connect to the adjacent truck so that _the axles of said trucks are rigidly held substan ' . 34. A railway vehicle as specified in claim 33 in 25 which one of the support elementsA comprises a tially parallel to each other and the wheels of pivotal connection between the body and truck. 35. A'truck and car supporting means for the said trucks are held in alinement. vadjacent cars of an articulated train, the truck `28. In articulated car construction, car bodies having segments pivotally engaged to the car 30 having coupling structure on their adjacent ends supporting means at one end thereof, means for securing said ends together, an individual yield supporting the car supporting means from other ing support for each- _of said car bodies adja parts of the truck segments fortransverse piv cent said coupling structure, an individual yield ing support for each of said car bodies at- a point otal movement of the truck segments, means for coupling the said cars and means independent 35 35 spaced substantially from said first-mentioned support, and a single Wheeled axle mounting of the car coupling means for coupling the truck segments, the means for coupling the cars being said supports for each of said-car bodies. ,. 29.v In a two-Wheelflateral motion' truck, an axle, lateral swinging members on each side of said axle, said members including individual ele 40 ments for supporting engagement with -a car body, and another member connecting said first mentioned members so that they move as 'a unit transversely of the truck. 30. In a two-wheel-lateral motion truck, an 45 axle, lateral swinging members on each side of said axle, said members including individual ele ‘ments for " supporting engagement with a. car body, one of said elements also constituting a adjacent the means for coupling the truck seg ments. . , v 36. In a truck for the adjacent cars of van 40 articulated type train, two truck segments each pivotally attached to its respective car, coupling means for securing’the said >segments together to vform a single truck free from relative lateral os cillations of said segments, andadjacent means 45 independent of the truck connecting means for securing the said adjacent cars together. ` n. M. PFLAGER.