US1671604A - Antifriction bearing - Google Patents

Description

J. F. ocoNNoR Fi''e'd Nov. 19. 1923 i ANTIFRcTIoN BEARING May 29, 1928.

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Patented May ze, 192s.

@we v N les 5'Al`psee1iredto the uppersurjface 'of the trucl;

...Tonner l;aCortinesoropinando, ILninoIs; Assieme, BY MEsNEAssmNi/inurs, To i er f W. 1r.'r.t`I NER,'r1IJC.,1A fConPonn'rrQNQE DLWARE] ff if f1.1 r

Aspplcatonl'ed November 2l-9i 1923. Serial N'o. 6755449;

'y if anti-friction bearings.' y l v lOne object vof thejinvention 1ste "provide an anti-friction side bearing for railwayv ears 4This invention relates to improvements in.

5 so' designedl as" to Vpossess lunusual strength,

`whereby it service; i

l'More specifically'anfobject 'of the invenis' 'especially adapted `for heavy 'i tion is'top'royide a bearing of the character i u indicatedfadapted to he "attached tohtlie ftruclr' bolster of--a' railway car, as a unit,

wherein a'sliding upper bearing plate which i directly 'engagesthe anti-friction eleinentis adapted to coact with the bodybolster,"therejing onft-hebodybolsteri 2Q provided.'forLV returningthe antifriction` el'eni'ent to centered 4@ach actuation of the bearing;

' v:Otherfolojectsandj advantages ot 'the invenscription and "claims` `hereinatter following. In' 'the 7 draw'vin'g forininga part fot l'this n specification,Figure1 is a vertical, sectional Y l'yietytakenl'parallel tothe lengtlioffthe car,-k 3oy'through."the'ends of the 'bodyandy truck 'connection therewith; ',Figure' isa top plan fholsters and shot'ving'uiny iinproven'ients in Viewv 0i thebarns ebene @Fleurs 1 And i 'Figure 3` isa Vertical, sectlonal View chrrei Inf lsaid drawingyl indicates 'the under-v the" upper side an-v opposed' ytruck lbolster.

Infth'e instance Shown; the iinproyed "side fliearing'is applie'dto the tr'uckrbolster.

A -Tlfiipotedbearing comprises; broadly',-

" a. housing? or retaininfrnieinhe'r A; a lol'ottornv l bearing` pitite-5:13,; valia ti friction elein'entC; aslizdingupper Wear'pla'te Df; a pair of cene Thefsteininelwebsr A fis-Shown, is @if t :generally box-like forth; hayingfa` bottoni 'l'fll Hilda pail* f lue'asor ea'rilli 011e at ,leachfendyby which the retaining linei'nloer adapted to be riyeted orotheryvrse rigidly y fli'lninating the usual teinpered steel facpositi'on after' v teringfsprings twol pairs' of spring f thesanie. f, The bottoni bearing plate B is'oi subst-en f tially rectangular outline and has an upper face,J ciu-ved `longitudinally` of the housing on an are 'of relatively great "radius las 'indig cated atl?.v lThe underfaceofthe-plate is i flat and'beahrs directly on the bot-toni Wall l2 of th'efliousing. The plate -B' extends from remaining edges f equally spacedi respectively c irornlth'e 'endWalls of theliousingas clearly shown 1n Figurewll 'To lpreventy displace-A ment of the plate B lengthwise of thehous` s i 'b olster, At theupper end, leach side Walll 'y 'V18 1s i off set outwardly, thereby providing` i a pair of pockets 16"-16, 'one'at each sideof .the nieniber A, extending longitudinally of 'onefside Wall to the otherand-has :the "two ing; the fo'rnier is preferably providedwith I a pair. of depending, .'spac'ed, 4e'entrajl lugs 185-18 :engaging Within lsuitaliile i* openings formed '1n 'thejbottom Wall 12. Adjacent each vSiam-n1, the pnt@ B is provided/wah "a'pairfoi'- upstanding knobs or teeth 1,9;19A adaptetto engage Wit-hin corresponding openingsQOf-Qllfformed in the bottoniof. the` anti-friction element VCl to thereby. prevent.'

respect to the housing L y l Theanti-friotiion element proper C yis'ini the vform of a rolling rocker and is formed with cy-li'ndric top and hottie-in hearing.;"sur-`l` LCS @rand 22g adaptedtocolzetjrespeo tively Withthe plates Briand fD; The hear-` rectangular' fforrn and presents'- a lsplierical 'upper surfac'eQS of Very long radius, adapted to coac't with the undersurlface of the" parts' or distortion ofthefholstem aret'aken y ing surface is all tiniesassuredr'In` other" Words, .if .thel under-surface of the body holster i's "disposed angulaily with n y y Y f 5 vl v, i reiterence' to the upper g bearing surface `of the latter from being shifted*v hodilywith The sliding platre Dis also ofsuhsbaiitiallyi* Byythe 'prOyiK-sion o'l the upper sider with di ma' sphericalup'per sur-tare adapted to'engage with* the *under-surfacef of thefftruckI 'f Walllg, yeitilcallydisposed; spaefedside Wallsy care.ot-"anda` central Contact between-the 105 13 13, .vertically disposedv7 spaced eiifd Walls antifrict-'ion element 'andthe (reacting hear-y l y,

` 'the .truck boisage@ body bolster wai @oit tac-tvvith and exert pressure on the upper slidingwear plate approximately at the cen-4` ter or at a point closely adjacent'the center fof the -platefand thel force Will `act substan-r tially through `the center of the, anti-friction element.

n It will be evident that by forming the plate with an upper'surfaceof spherical '.vform', proper contact ofthe body bolster therewith is A'assured Vand i very simple and efficient means is provided ffor taking `care of angularity ybetweenthe opposed' bearing "surfaces of the 'body and truck holsters.

This means replaces the more complicated kmechanism now Y 'generally usedv involving the mounting ofthe anti-friction element-vin a cradle'vo'ron `a .corresponding additional elementv ypivotally vmounted within lthe `base casting-vorv retaining member directly secured n, to theV bolster.l I

Theunder-surface 2.4 of theiplate'D `co- 3 actsfivith' .the surface 21 ofthe anti-friction theliousing on v an arcv of relatively long radius, the curyature being preferably the' -same as that of the bottom plate B.

element'and is also curved.longitudinally of j cent .each side Wal-l 13 of the housing',`the plate D is reduced in thickness as"clf early shownv in FigureA 8, therebyQpro-viding a flange 25 extending over the ,corresponding pocket .16V and over-liaging the side Wall of i i the pocket. Adjacent each end of the roller,

the plate D isprovided With a pair of depending knobs lor teeth' 26-26 adap-ted to engage kWithin corresponding openings 27-4 27 provided in the top of the anti-friction' element C to control the movement ofy the ylatter and effec-t return ofthe same to centeredr position Awith the plate D. The plate v ears 28 depending fromgeach flange 25, d is- D-is also providedjwith a `pair of `spaced posed-transversely) of the housing and `eirf tending intofthecorresponding pocket 16.`

.p i *The ears/28' of each pair are disposed adja- 4 45 cent the opposite ends of each-flange, vand y each of the same isuprovided With fa hori- ,l zontal, outwardly opening slot 29 adapted t to. accommodate the. cylindrical body portion of the correspondingthimble F.

The thimbles `Fv are of like construction,

and arranged in pairs at. opposite sides of thev housing. yEach thimble FL includes a relatively long, hollow', cylindrical'body' portion closed at,its outer `end and provided at its inner end Withl an annular flange .30. `Each thinible extends'through the slot in the corresponding ear 28 andhas the flange 30 `engagingthe inner side ofthe ear. The

' outer end ofeac'h thinible isadapted to abut G0' thepartsA are in normal position.

the corresponding end of'the housing, when `One of thevspringsF is arranged at each sidey ofthe bearing and has its opposite ends disposedy inv the respective thimbles bearing on thefclosed end walls thereof and holding` .peredc i Y. The normal position, of the parts is as Larnacav normal position.'v The parts` are so 'proportioned andI arranged that the yflanges-30 `of the 1 lrespective thimbles engage 'the corresponding ears of the slide D when the louter the `same yielding Contact :yvith the' end y Walls ofthe liousing,'when the `parts are .in f

end of the thimbles` are in abutmentwwith the end Walls `of the housing,fthus retaining the slide in rcentered position.

f `Tlieretaining elements G are ,in the form of rods, one being disposed at eaehsidevofl the housing,'extending through the. corre-y sponding spring E, alined Lopenings in the thimbles F yand the end Walls ofthe housing the opposite ends of the rod being `headed vover to retain-the same in position. ItWill*`r be vevident tliatwhen the partsare -assembled y plate Dwvill alsobe retained iii assembled lrelation with the housing thereby, and` in` Vturn retain the anti-frictiony eler'nent` Within the housing. f,

wvith the rods inzlixed'position,fjthe slide- By the'construction andarrangement'def` scribed, I provide a side bearing havingan antifr-iction rocking eleinentfthat has arcs.

of unusually large radius, and wherein the l i over-all heightof .thebearingis maintained 'substantially constant duringr the entire op- ,eration `of the safe,` by Vproviding bearing L surfaces of the proper'curvature on the ytop and bottoni 'Wear' plates'. 4

`'The top vand bottom anti-friction element therebetween may .be f made of any suitable material but are prefl y 10,0v

erably constructed of steelv and .properly tem'- shown by the full linesfin' Figure 1. In this position, it is evidentgthat the sliding plate 105.'

D is supported slightly belovsr the under surfaceof the body bolster.. Itwill beseen that` Wear plates and the upon approach of the body andtruckfbol-v `sters toward each other,`fthe spherical, upper" surface of the platev D will be engaged lby the body bolster and the pressure thereon properly centralized due tothe formation of the upper surface of the plate. When. the bearing is brought into action by the relative v radial movement and' approachof the body and truck bolsters, the lslide D Will bel moved stance, to the position indicated by the dotted linesv in Figure 1. It Will be evidentV that the rolling movement ofthe'anti-frievtion element C Will be at all times positively controlled by the knobs 26 engaging the re- 11:5l relatively tothe housing and theelement C yrolled to either sidefof'normah'asfor in cesses at the upper side of the'elem'ent and -the knobs19 engaging-.withinthe recesses at the bottom sidey of the same. #The limit of .the movement of the anti-friction' element is reached when the'same reaches the dotted' line "position shown inl Figure 1; Asithe Slide moves to the dotted yline positiomthe thimbles at the right hand side of the bear`v king', as shown inl Figures l and- 2, Will be moved therewith by engagement of the ears 28 of the former With the flanges '30 of the latter; thereby compressing the springs E. When the pressure on the bearing is removed, the slide vD will returnv to 'normal' position under the influence of the springs E i i Ithrough the medium of the thimbles F. The

slide, in turn, eects return movement of the anti-frictiony element `to properly Acentered position.

I have herein shown and described what` I now considery the preferred manner; of carrying out my invention but the saine is merely illustrative and I contemplate all changes l and modifications that come Within the scope of the claims appended hereto.

Iclaim:Y f y a f 1. yIn a side bearing, the combination With a supporting Wear plate fixed to the truck..

` bolster and having an upper curved bearing surface; of an anti-friction element having rocking movementon said Wear `plate;

inter-engaging means on said plateand element for controlling therocking movement of the latter; a slide supported. upon said element and having a bottom face adapted4 vto coact with said element, the slide being" normally free of engagement `vvith the i' y bolster, butadapted to be movedto actuate saidelement by engagement Withl the body bolster; coacting means on said slide-"and 'i f element for effecting return movement of the element to normal position and controlling the rocking action of said-.element during thereturn movement; andmeans for returning said slide to normal `position after each y' actuation of the bearing.v

f 2. In aside bearing for railivay.cars, jthe t in one direction; spring means for hold-ing i "said thimbles normally-separated;fand Iretainer rods extendingthroughsaid thimbles y a slide resting upon said element. and ,adapted to be yengaged by the body boland adapted to hold lall parts of said bearing assembled. In Witness that I claim kthe foregoing VI have hereuntosuhscribed my name this 13th day of November, v19723. i

JOHN F. ocoNNoii. f n

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