US1922876A - Lateral motion resisting device - Google Patents

Description

Aug. 15, 1933. J. G BLUNT 1,922,876

LATERALlMOTION RESISTING DEVICE Filed April 29, 1931 INVENTOR Patented Aug. `15., 1.933 l 7': *l 4 t Y UNITED STATES PATENT OFFICE 'Application April 29, 1931. serial No. 533,699

1s claims. (c1. 105mm) This invention relates to lateral motion resisthereinafter described, may be applied to one orY 111g devices for railway vehicles. more of the axles of alocomotive.

An object of theinventionis to provide a de- In the accompanying drawing showing 'a pre- VIC@ appllcableto Gn@ OrmQrc pairs of journal `ierred embodiment of theinvention: Y 5 boxes of railway vehicles, 4which Willprovide re-V Figure 1 is a front View of a pair of drive (if)Y silient lateral movement of the wheels and jour- Wheels and boxes, vthe pedestal shoes being renal boxes relative to the `vehicle frame, thus moved, showing the invention applied thereto, equalizine rail flangev pressures with adjacent with the ieft half of thelaterai motion resisting wheels, assisting in passing track Curves andabdevice in section en the line `r-I of Fig. 2; Fig. l@ sorb the lateral inertia thrusts against the Ve- 2,91; the rightsde is a section on the line II-II cs" hicle frame, as well as the centrifugal forces Set of Fig. 1, and at theleft sideisa section on the 11D While passing through Curves 0r irregular line II-II"`of Fig. 1, with various'parts removed; track- Y i l and Fig. 3 is a partial plan View of Fig. 1, with A further Objet S t DTOVde an improved various parts added and showing one of the lat- `l device wherein one journal box isdesignedto eraLmotion resisting devices in section on the 7()` "Q0 absorbed;

act as a thrust block, whereby the opposite .box line III-'-IIIof Fig. 2. iS returned t0 'its IlOIIIlal D0Sti01b and whereby The invention is herein exemplied inconneclateral ShOCkS that Would Otherwise be imparted tion with the frame of a locomotive of the stand# t0 the Vehicle frame by ',Sad ODDOSte 'DOX are ard bar type, comprisingftv/c side members 1, Y i* 1, `having`pedestal jaws 1a; la, which `are, dis- 75 Y A further ObjeCt iS t0` PlOVdeY a deVCe 0f the posed at the `maximum distance apart permissi-` character described wherein there is no pressure; b1@ under the limitation imposed by the width exerted by the deviee 'upon the boxes when they between ,the driving wheel hubs. vin @aan of the are in their normal DOStP-S pedestal jaws la, a driving box 2 is fittedbetwen A further object is to provide a'flexible con- Shoesand Wedges 3I in the usual mannen The 80` .thus maintainingparallelism with the axle for necton between each box. and 1 5he-adjacent @I d driving boxes are of the usual. construction and ,of the de vlce whereby th? device 1S free to mt provide suicient spa`ce,.between their iianges' m a Vrtmalplane and me. bQXeS am thus lfft 4 and the shoes and Wedges 3, to. permit lateral free for vertical relativeV movement, the device motion of the boxes relative to the pedestal jaws` An axle 5, having a pair of driving wheels 6, is 85 journalled in the driving boxes. Normally as when the vehicle is passing over tangent track, the inner faces `ci? the hubs of the wheels 6 are next to the outer faces of their respective journal boxes and the inner flanges 4 of the boxes bear against the adjacent faces of their respective shoes and wedges, the space or clearance provided to permit lateral movement of the boxes relative to the pedestal jaws being between the outer anges 4 and the respective adjacent faces of the slices and wedges. l As the axle 5, is free to move laterally rela- 4achieved by the instant invention will be aptive. to the boxs it Wm be apparent .that the Llo parent by the detailed descriptionk of a preferred boxes are permltted Independent lateral movff' 100 embodiment of the. invention hereinafter set ment llatlve t0 eac@ other as Well as to the forth* l x respective pedestal Jaws. From then' afore- `While theV invention is of broad application, its described normal positions hoWeYe" it Wm be' importantfneld of usefulness, as at present beseen that the boxes may move inwardly only, u nei/@(1,15 in Connection with the drive wheels relative to their respective pedestal jaws, and 105 of a locomotive. Therefore, While in Vno way so When C116 bOX S mOVed Vlatelali inwardly, the limiting inthe invention' will be hereinafter' deopposite box, bearing against its pedestal iaw. scribed in `connection with a locomotive. It will acts as a thrust block for the resistance means, or be also understood that in usual practice a latlateral motion resisting devices of the present ineraltmotion resisting device arrangement such as Vention, as hereinafter `fully described. VOn the 110 all positions of the boxes. v l

'A further object is to provide a device of the characterdescribed which-may be applied or removed Without disturbingthe boxes. v 35 A further object is to provide a device which is heldin position and supported by the boxes l independent of the vehicle'frame, thereby obviating the employment of frictional surfaces rel quiring lubrication. j i0 A further object. of the invention is to` provide a device characterized bysimplicity, low` cost,

and economical maintenance.

Further objects andv advantages which are i springs.

inner sides of the driving boxes, one on each side of the axle 5, are U-shaped supports 7. t

Two lateral motion resisting devices are disposed one on each side of the axle, and each ele# ment comprises a pair of guide yolres 8, having holes 9 formed therein, through which holes are passed bolts 10. TheA bolts i0 are threaded at one of their ends and are provided withrnuts 11. The nuts 11 are formed vwith sleeves which slidably nt within the adjacent holesrS). The guide yolres 8 are each formed with an integral inwardly extending stem l2, which is circular in cross-sec tion, and an integral outwardly extending Harm 13, which is oblong in cross-section, constituting" in effect a thrust element. The outer Vends ofthe arms 13 lit within the U-shaped supports 7, and

the supports are 'providedv with orifices' 14.7,

through which pins 15 are passed, the motion resisting devices being thus held in a vertical position and being prevented trom turning. Helical springs 16 are disposed around the'stems 12, and a centerspaces 17,k comprising a plate 18, is fitted betweentheinnerends or" the springs, and oppositely extending bosses i9y are iormed on said plate, and extendv within the adjacent ends of. the springs. Y Itwillbe understood thatr a single spring. may be Aemployed between tie guideyoles, thus `eliminating the spacer without departing frein thersp'irit of the invention, the construction illustrated having the advantage however, or moreelasticity and durability. Y 'A suitably shapedi'liner y.2() may be inserted in one of the supports 7, at the end roi lthearrn held thereby. s g s. l l. f

In operation. `when aloccmotive is passing through curved or Virregular track the respective pairsof wheels and .their vaxles. aredaterally moved relative to the vehicle frame, and the hub of the Wheel of each pair, whichis'moved inwardly relative to the frame, being forced against thel side of its adjacent box, and the box being thereby moved inwardly, the thrusts from the lateral movement are transmitted frein this boxv tothe frame. 1Withfthe devicesfof the'instan't .invention applied to yoppositely disposed boxes, ythe shocks are transmitted fromV the inwardly vto thesprings 16, and as the devices bear against the 'opposite box, which in turn bears againstV theY vehicleiranie, a compressori ,of `the springs is, effected asthe said yokes are forced nearer to-` gether rand the shocks are thusfabsorbed by said The resiliency of the springs to force'the guide yolres outwardly andr will assist in returningthe wheelsY and the moving box to their normal lateral positions, when Ythe vehicle returns to tangent track. i While as aforepointed out, the resisting devices are prevented from turning by the U-shaped supports, their flexible connections with their' adjacent boxes permits f thev devices to tilt freely in a vertical plane and rthe'boxes arethus4 unrestricted by the devices in i their relative vverticalv inovementsj and the devices arefmai-ntainedinparalleiism' with their adjacent respective axles vfor all positions ci the boxes. y

It will be apparent thatthe instant invention 'is especially adapted'for application to locomoe tives in'use', in that all that is necessary to be. done to the locomotive, is to apply ysuitable supports to the boxes. The devices are then simply applied Vas units and their disposition and construction is such thatthey do not come in the 'ill tend.

' sisting devices being suspended entirely upon the two/boxes ofY thev same axle will at all timesbe in alignment with the driving axle and the instant lconstruction is such that there are no irictional surfaces which would require lubrication. Where Vit is desired to permit only a very limited lateral motion, solely for the purpose of softening blows against the irarnes'the instant device is especially advantageous by reason of its simplicity, low cost, and ease oi assemblage.

It will further be seen'that in the operation oi`y the'instant device one box actsA as a thrust bearingto talie'the thrust of the device produced by,` the opposite box. ,Of especial advantage is the fact that when the driving boxes are in their normal positions` there is no pressure exerted upon the boxes whatever by the devices.

While there has been hereinbefore described an approved embodiment of the invention it will bev understood that many and varous'changes and modifications may be made thereto without departing from the spirit of the invention, and thatall any such changes and modifications that fall within the scope of the appended claims are contemplated as a part of the instant invention.A Y.

The invention claimed and desired to be `secured by Letters Patent, is:

, l. 1n a railway vehicle, the combination of a main frame; a pair of journal boxes, each having the capacity of lateralmovement relative to the frame Vfrom a normal position substantially in an inward direction only; andY means disposed between" and carried by said boxes for resisting lateral thrust or said boxes, one of said boxes servingas a thrust block for said means, while means'resists the thrustof said other box duringthe relative lateral movement of said other 2. 1n a railway vehicle, the combination of a main frame; a pair of journal boxes, each having the capacity of lateral movement relative to the trame from a normal position substantially in; an

inward direction only; and resilientmeans disposed between and carried by said boxes for resisting lateral thrust of saidboxea one of said boxesserving as a thrust block for said means, whiiesaid means resists the thrust of said other box lduring the relative lateral movement of said other box. Y

3. In a railway vehicle, the combination of a main frame; a pair of journal boxes, each having the capacity oflateral movement relative to the ira- .e from a normalgposition substantially in an inward direction only; and means disposed between and carried bysaid boxes for resisting lateral thrust oi said boxes, one of said boxes .serving` asa thrust block for said means, while said means resists the thrust of said other box during the Vrelative lateral movement of said other box,rsaid means being adapted to urge said thrust-exerting box to .normal position when the force upon one o! said boxes whileutilizing the other box as an-abutment, .to resist lateralmovement ofV said first box and return the rst 'box to normal position, when said rst box is moved laterally away from said normal position.

5. A lateral motion resisting device comprising a pluralityrof helical springs; guide yokes engaging said helical springs at their respective outer ends and holding the springs in aligned positions;

a spacer disposed between the inner ends of said;

helical springs; means holding said guide yokes in operative position; and .bearing membersy formed on saidguide yokes extending outwardly therefrom.

V6. In a railway vehicle, the combination of a` pair of .journal boxes having the `capacity of lateral movement; supporting elements mounted on the inner sides of said-journal boxes; and resilient means carried by said supporting elements comprising a pair of aligned springs, a pair of guide yokesV engaging the respective outer ends of said springs, and having extensions engaged with said supporting elements, and means holding said guide yokes in adjusted positions, where- I by lateral force will be exerted against one of said ports; guide yokes engaging the outer ends of said resilient means and engaging adjacent supports; and alineradapted to be disposed in one of said supports at the` end of the adjacent yoke.

8. In a railway vehicle, the combination of a pair of journal boxes having the capacity'of lateral movement; oppositely disposed U-shaped engagement with. said' supports.

supports Amounted on the inner' faces ofV said boxes; resilient means disposed ',between said boxes in line with said oppositely disposed supports; guideyokes engaging the outer ends of said resilient-means. and engaging adjacent supports; and meansfor locking said guide yokes in 9. In a railway vehicle, an axle having inside journals; a pair of wheels secured on the axle; journal boxes, having independent lateral movement relative to each other, for the journals; side vframe members having pedestals engaging Vthe boxes permitting independent, limited, lateral movement of the boxes; and a device disposed between and carried entirely by the boxes for yieldingly resisting inward movement of either of the boxes relative to its engaging pedestal.

10. In a railway'vehicle, an axlehaving inside journals; a pair of wheelssecured on the axle; ,journal boxes having independent lateralV movement relative to. each other, for the journals;

side frame members having pedestals engaging` the boxes permitting independent, limited, lateral movement of the' boxes; a devicecomprising yielding resistance means disposed between and carried entirely by the boxes for yieldingly resisting inward movement of either of the boxes relative to its engaging pedestal; .and means for varying the degree of resistance of'said resistance means. Y

11. Ina railway vehicle, an axle having inside journals; a pair of wheels secured on the axle; journal boxes, having independent lateral movement relative to each other, for the journals;v

side frame members having pedestals engaging the boxes permittingrelative vertical movement and independent, limited, lateral movement of the boxes; and a device disposed between and carried entirely by the boxes'rfor yieldingly resisting inward movement of either of the boxes relative to its engaging pedestal, said device having a flexible connectionwith each of the boxes to permit the device to "tilt as the boxes move vertically relative to each other.

l2. In a railway vehicle, an axle 'having inside journals; apair of wheels secured on the axle; journal boxes, having independent lateral movement relative to each other, for the journais; side frame members having pedestals engaging the boxes permitting independent, limitedflateral movement of the boxes; and a device disposed between and carried entirely by the boxes for yieldingly resisting inward movement of either of the boxes relative to its lengaging pedestal, comprising separate end parts movable inwardly respectively with the inward movement of the adjacent box when moving relative to its engaging pedestal under lateral pressure of the adjacent wheel, and resilient means between they parts resisting said inward movement, said resilient means automatically returning said moved part by outward movement Vthereof to normal position when the pressure is released.

',13. A railway Avehicle comprising side frame members; oppositely disposed journal boxes engaging said frame members and having the capacity of lateral movement relative thereto; a helical spring .disposed between the boxes; a support for the spring disposed between the ends thereof; and a rigid element at each end of the spring, with its outer end abutting against and carried by the inner wall 'of its adjacent box.

14.`A railway vehicle comprising s ide frame members; oppositely disposed journal boxes engaging said frame members and having the capacity of `lateral movement relative thereto; a pair of helical springs alignedv between said boxes; guide yoke means holding said springs; andrigid elements at the opposite ends of said guide yoke means connected to and Vcarried by the inner walls of the journal boxes.

l5. A railway vehicle comprising side frame members; oppositely disposed journal boxes engaging said frame members andhaving the capacity of lateral movement relative thereto; a pair of helical springs aligned between said boxes; guide yoke means holding said springs and being adjustable to vary the amount of resistance loffered by said springs; and rigid elements at the opposite ends of said guide yoke means connected to and carried by the inner walls of the Yjournal boxes.

16. A'railway vehicle confiprisingl side framemembers; oppositely disposedjcurnal boxes engaging said frame members and having the capacity of lateral movement relative thereto; a helical spring disposed between the boxes; a support for the spring disposedbetween the ends thereof; a rigid element at each end of the spring, with outer end abutting against the inner wall of its adjacent box; and supporting elements mounted on the inner faces of said boxes and engaging and carrying said rigid ele-V ments. f

JAMES G. BLUNT.

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