claim: 1. In an anti-friction beari,,g, thp, combina,- o zontal,31 tioi-i with a retiiiier provided with'h ri ly extending guideways; and anti-friction means adal)ted to move to either side of central position with respect to said retainer; transmitting members de.tachably as4c) soci,,ited witl-i said aiiti-friction means, said urailsmitting r(iembers extending through s,,iicl guideiveys; ,tncl vertic,,illy arraiiged sprin-s extencling throtigh saicl transmittill(y ii3ei-n@'el--s to mai-ntain the same iii cooperative 41,5 relation with saicl anti-friction meaiis, s,,tid sprinas bei-.ig adtpted to be flexed intermediatelheir ends Lipon movement of said antifriet;-oii means to either sicle of central position, -whereby saicl ,tntifriction mea7-is are 50 returned to ceiitral position when free froin loacl. 2. In an anti-friction bearin , the com9 bin@tion with a retainer h,,tvino,, gliideways in its side w@@lls and provided with a bearino, 56 stirf@ice; a pILivality of anti-friction elements ,-,Ot,,tpted to mo@'Te b,,)cli: aii.d forth oil s,,tid bearip-(y slirfaces; transmitting members dezn t,,ich,,iblv connectecl to said anti-fricti6n ele.1 iiients so as to sp,,ice the same, said transinittir@.qmed--ibers opei@ating in said gtiideways I'llid extending oiitivardly therethrougl-i; and verticallv arraiiged sprin s at each side of 9 said housing operatively conne6ted with said tr,,.ii,ismitting meinbers and adapted to be flexed intermediate their ends by said members tipon movement of said anti-friction me,,ids to either sicle of central posit,lon. 3. -In an an'ti-friction bearidg, the combiiiation with ,t retainer provided with side and end walls, one@of said side walls having 70 a hori7@ontally extending ouide slot; aiiti@ fi-,Icti-on @n-ie,,tns ttdal3ted to move to either s;.(Ie of ce,@itral p6s;.tion with respect to said retainer sai-,t anti-fileiion me,,tns inelliding aii c@lemeiit provided with aii ae:ially disposed @75 openino-, - a -,-ert;eolly di@;posed. sprin!-- arraii(yed at one side of saicl bearing aiid-haviilo; its opposite ends seclired to said retainer; and a tralismitti-lig riiember. i-nsertable tliroiigh said "' d sl6t irlto the axiill open@. @sf) zn -i mitting meiiiin-S in said e?eiunienet, said ti@.ti s ber e7-igaging said spi-ing and being maintaip.ed iii positioii thereby said trans'mitting element beihg ,idapted to flex saicl spring inter mediate its ends upon iiaovement of said @8 5 ar.'ti -frictio.,n meails t6 either@ S'Ide of ceiitral Posi tion. 4. In an :iliti-friction bearihg,. ti-le combi n atioii with ,t retaiii6r haviiig side and end wall s and beinr-,y provided with lo ngitudinally 90 ,Lrr ,iiiged cor,.caved bearino- surfaces, and Nvit h horizontally a@@anued guide-@vays,in.its sicle walls a-.iti-friction el ements arranged to iiaove bacl@: and forth Lipon said bearing s-Lirfac6s; a c,,ip provided with convex beariiig 95 r sii faces corresponding substantially ill@curvatti re with the bearing surfaces@of s@id retain er; tratismitting members connected @-@vith spicl a7-iti'-Triction elemeiits and 6p(-,ratively iiio ntecl iii the gi-iideways of said side wdlls - 100 u verti @,-Llly dispos-.d sdrings at ol)posite sides'. of saicl 'ho Lisinq and @onnected to s@aid@ transmitti n(- i)aeii-ibe@s whereby'n-io ent of a'd veni s I ,ti iti.fricti6n el6ments to:eitlier side of central posit 6n -will eff6et flexilig of said springs 1(5 i.- iteri-necliate their ends so th@@t reactive force of said s@rings will rettirn said anti@friction e'teinents to central positioii. b.@ In a side bearing of:the character des6ri bed, the combination With a retainer se- 110 cure d to the truck bolster of a railway car said retainer haviiig means providi ng a concav e bearing surface; 6f anti-friction means m6v able to and fro upon said bearing surface @; a cap for said retainer having a, coi@vex ii -5 bear ing suriace corresponding suustantiany in curvature with th6 coheave bearino, surt) face of said ret,,iiner, said conve:@ bearin @siir 9 face bearing upon said :a'nti-friction means to per@ait inovement@Of said cap on said - anti- 120 f@i ction' means ctnd relativ@ly to the@ lo@tt6r and @aid r'et-,iner, said anti--friction means and -,aid, concave; and @e6nvex bea@iii g sur-- - faces being so proportioned 'as't6 maint'ain the cap @at the same level duridg its MO 1-5 veineiits with respect to sa@ id retai-uer; meads con nei@ting s,,iid cap with said retainer @ to per mit o@erative inovemeiits Qf @tlie @cap ; and, yiel dable means co@operating with the said di @anti-frictio rectly th 130@ n means tb @eturn a

4 same,@ and @ther(@f6r6 @tb.e- cap . indirectlv -to and @forth w.ith resp6ct to said retaiiior; a trans@ maintain the. same,-'in'CeAtr@al posit@on -v@ith r@itfi@g ele.inent engag'ed with the E@nd of sa,@d referen@e to stid retai , ner@, @ Wheii @free from: anti-fricti6n @elemeiit. to move in u,ni@6n thereload. with - alid s rin Ur in .@ a @ side, @ bea @in , of th haraoter: de member see ed: @to sai(i @6 retainii@g r @and@ h.aving o,p,erativ,6 @en- 70 scribed,: the, @ombinati@:on withe c retainer se- ga,gemeht with said transn-,iitting element -to cuied -to. the truci@,@ bolster of a @railw;ay -car -resist of said @trdnslnitting ement f@oin the aiitifriction elem t, iher sAid retainer having -ineans p.roi,iding a c6n ell en e h c@ve bearing, sii@face'- 6f ai@ti friction mean I s by ol(lincr the f6rr@aor iii op,erati@ve engagelo I @novabl@ @to @aiid fro-. upon @aid- b6@rini sur- mol-it' with'@ the 'end of the, .1@tt6rby its re5 Taice; a c@i@ for said retaine@ having a convex@ silieiicy @nd- being stressed when @aid,anti@ b@dring surface @or@es@ondi i@ substaniially in, CLrvature @with the 6oiica-.ve b@@ring. surface .@f said @et@iiie@ sdid convex beari.ng Su i-friction riace-b6a@iiig upo@ s@id ant means to permi moveineni of @,4id c@p on.said anti@fr c ion- means @io the latter and- said reiainer said@ aiiti frictioh means and' said:coneave dnd'cojivex beariiio@ stirfaces 2o being so. prop6rtioned as,to maiiit@i@ the c@, p at the s,,tme lev6l duri@g i.ts m6vemeiits with res@pect to said- retainer; i-neans connecting @--sai aid etainer t6 @ermit operad cap with s r tive @-movenlent-q: of the -ca@ aitd y,.ieldable; --9-,5 means -co@op.ora-ting with sai@ -ahti-friction mean - s . o re urn,-the sa to-'a-n 'riiaintain t t d t-he@ same.in ceii @tral position WI 'th reference to said @retaiiier wlien frde@lr6@n 16ad@ @aia@@ anti-fricti6n ineans b@iilg pi6vid@d with't@eth' engageable @with be te6tb@on the convex aring surface of said cap. side @beariiio@ of theclia a er-d Ii@ a r et e, @ret 'Scril@ed the (,@mbiliati@o-@u with ainer se-, cured:to the truelk bolster of a,. car d retai r b,,tviii,-me@ias p:ro-@iding a .,6onSal ne cai7@ bearing s@irfac@'- of -@nti- rictionl:ineans -rfici*dbleio. aD:d -fro u@oi@- liid beariiik s SI urf,)(@e@; a,Oap@for said ret@iner haviiig E@ convex -beaii-ii6- surfiiee corr@slioridin@, --,iibstahiia,lly -In 6.urvat-ure -with th '40 e conea-@e b6aiin-(- surf@ace'of -8itid @ie@@in@r, said convex boa@inff surface -bearina .,upon @said anti-fridtioii -meatis Z7, permi movement@o-f @aid c@p on said@ alitit -fr-icfioia@in@@ns:@@iid-,@el@tii,elly o-tbelatteiand@ '4,,) Sai(i -retdi.Tiei: @aid@ '@anti@frfetion .,me@iis @@ild s concave and, coiivex bedrilig u@faces so'.@roport;iohed as to maiiit@in the ca-D a t the same-lev@l duri,no, its mo-@, ement@ -with -res ei@t t6 said retainer;, means conne.etin p 9 50 @said -cAp -m,i,th saia@ r6tainei-, to permit, 6@er@movenients of the cap,-, elongated spring -means bo@h of it8 @@nds -connected @to saild.reiai:n6r ill@mitting el,ements @coniie6t e.d with@said@ lanti-frictioii m6aii@ anA enka@e-,@@; it ediate ihe i,5 ,Ible --v@ith said-@ Fpring means i erm -ejll-(Is.@ th6i@of f6r- fl6xi@no@ the same,. wheii @hid .- anti@irieTion m-eans moires @t6 either side:of @.os@tion a-iid iiit6r-@en ragiiio@ teeth o 9 "'S@, 'Id anti-fiietion means and the.convex@sur-@ @60 -said-6ap@-whereby@tlie.p.osiiion-of @,@ld - face,.of by-ih6 posi-iion-,of said @nt'l-I riction@-ineans.@- 8. -Iii -,an bearing. t -e 66iii@l, -n.,itio)i@ -wifh a r@. - - - - - - tion elerii@-nt ati@n,&ea.@to,@movie@@@badk@aiid @olem6nt is aettiated fr fricti6n om norma position wh6reby said spring-means is effective to @eiiirn said -antifrictioii@ elelhent -to @nor mal iipon rei@iovdl 6f ti , @e a6iuati@:g fore fo@.ego' In witness that I clairp- the ing@ have he.@eiilito stibscribed my@ name is bru@rd Fe J@D26. ply of WILLIAM A. GE@q@R. -100 110 125

Patented Mar. 18, 1930 1,750 797 'UNITED STATES @PATEI@@T OFFICE@ WILLIAMT A. GEIGER, OF C@@IICAGO@ ILLI-.L@TOIS, ASSIGNOR TO W. II. MINER, INC., OF CHICAGO, -@LLINOTS, A CORPORATION OF DELAV7ARE ANTIFRICTION BEARING Ap,plication fil@ed February 5, 1926. @Serial No. 86,171. This inve,ntion relates t6 @,nti-friction bearings. One object of the invention is to provide ,t Si]Dple, practical and efficient ,tnti-friction bearing, especially adapted for railvitay car side bearings, ini ",hich the parts ,tre so arra,nged that the anti-friction eleiiient@ are automatically returned to normal centered position when fre6 from 16ad. io A more particular object of I the invention is to provide @ be,,iring of the abov6 charoleter, including a boxlike ret,)iner with antifriction, elements disposed therein togeth-Ir with verti6ally ,trranged helical springs at 15 oliter Sides iof said retainer, transmitting members removably connected to f@aid antifriction eleiiienfs ,tncl eno-agiiig said springs -whereby moveinent of the antifriction elemelits to either @side of centr@-,l position ef20 fec@ts flexing of said springs in'cermediate their ends, which operate to return the element to, ancl inaintain the I same iii:central position -when free fr-om load, said springs -rvin,(,, to resilientlv mainta;in the transmit25 g ele tin ments in engageluent with the anti friction elements which in tutn are held against removal from the housing by said transmitting el6ments., A still further object 6f 'the invention is ,lo to provide, a bearing of the cliaractej7 above referred to, in which a covering cap . is utilized which bears up on the tnti-friction elements, the be,@rin(Y Surfaces of said cap and I tD of the retain6r being . ari-anged oil parallel '15 s -whereby move,melit of the anti-fricti6n elements t6 either side. of cehtral position Cloes not c,,iuse elevation of saicl cap, and the cui@ved bearing slirfaces of the retainer have an effect in returning the anti-friction ele40 ments and cap to central, position. Other ,ind further obiects of the invention will more@el arly appear from the descripe -einaft f ollowing. on anct claims her er In the drawinl,, formino, a part of this 45 specification, Fi,i. 1. is a vertical sectional view taken throLTah the ends of the ]body and er tri.icli: bolst s of ' a r,@,iliv@y co showin.u@iiiy improvements @'connection therewiti@.:@Fig. 2 is ,i-transv@erse s@@ai, view, partly broken 50 a way, correspo ndin-a stibstantially to the line 2-2 of -Fig. 1. Fig. 3 is a det@iled top plan view of ojie 6f the tralismitting and spacing ilienibers used in connection with the invention. Fig. 4 is t sicle elevational vie W 0 f a modified form of the invention. Aiid Fi,,,@. 5 is a transverse sectional vie@w cory@sponaing substantiallv to the line 51 5 of Fig. 4. Referring first to Figs. 1 to 9,@ of the @drawin_-s, 10 denotes the underside. of the body bolster, and 11 the upp6@ side of tl-i6 c6rre 60 sponding o I osed truck bolster. The ii-i@PP, proved side bearing is shown as applied io the truck bolster @and comprises broadly a mounting, retainer, or housing A, antifriction means B-B, tr@n@i-fiitting elebaei@ts 65 C-C; resilient elements D-D and a; c apl @E. The housi-ng or ret@iner A as sl-.own @ is of rect,afi ular f6riiiatioii haviiio- _17er'uically 9 @ Oisposed side wa.11s 20-20, @nd @oi@t,ically disl-,osed end walls @91-9-1.@ Ti-ie bottom 22 70 OT S,,iid hotising iiieludes ,i pair of longitudii-iail): curieci seats 23-23, -ctpoy-i each of 'v@hich is motintecl a, concavebe,,trintr plat- 24, the otiter ends of said be,,Lriiig-pittes -@butti@g -ids f 7r, 'the end walls 21-21 an@l tlie.iy,-ilel6i'@ 0 'siid I)Iates,beiii(p@disposed in-hbtitting 1. rel,,Ltion. TIie side walls 20,-20 are, e9..Ch'providecl with ,tn elon(yated 1- 16ri@ontally disposed guide slot 25 to allconirlodate tl--ie n In tr s iitii-ig n-i.embers C@C heiei@after clescribecl. The retainer A i@@ provi-ded at its olp.posite ends with securing fl,,).i-@ge@ 26@9.C) tjirough ivliieh extend -ri-@ets 27--@-2T@ which see-,ire @,he ret,,iner to the truclK'oo'L,-,ter. -Lh6 anti-friction elelilents B-B' are@ 'UV)TO in nlimber, one 6f the sani6 beiiig clispbse-J Lipon e-ach of- the cu.rvedbearinog'p,laf.es 24--@24:,- rlhe anti-friction 6lemeiits are siiiiiItir @ in cojistructi6,.i, in this inst,.in,c-, being. 'tli'ie foi@in ol@ roll,-,i-s each.of whicli@is pro-, qo vicled -vvitii cy,Lindrieftl s6ckets 6@ recesses 28-28 -in its oi-,pcisite ends the, up I per, periphery of each roller B b 6v!de@l ivith emg Pr 'Le e,'L-h oi, ribs @29 @ a@laptel]: @to @co-operat(-- - Nvitil the cap Q5 ' The 6ap E i.s @ref,- r,,ibly ", n for m, the to@ 30@' of which is fl,,tf t@i e up cl ei- sui--ac,- C-P which is prov']_Oedl,-,@,i,,I-i ai,@- uat6'bea@ing faces 9i@ILLS1, @vhich arelstru@ck uponarcsa_a edt6'e-,tenCLiiisti b ,@@.,iitia!IY i(o Pt

1,750,797 the side walls of the housing. E@Lel-i of th-heacled portions 58 is provided witli a bore 160, the @v,,ills of -which are tapered in opposite clirecti6ps as indicated at 61. 5 The resilient me,,tns @ D'-D' are two in ni.imber one @6f the saine beincr disposed at each sicle of 'Llie 1-iousing. Each resili,-,nt element C' is vertically disposed- ai-id extends throu-h the @bore 160 in the head of the ro10 1-litecl transmi't,'Li-Tl,(-y inember, the lowe,. end of each sp-i-ng-bei-ny secured to a lug 62 projectlaterally the sicle wall of the housiT,- , and the opposite end of the s-.urin<y @ is 9 seclirecl to @t similar lu,-: 63 projecti@o, fron-i 15 the side wall ol@ the, ho@-sino, adj @eent Vho top edge thereof. In operation n movemeiit of the intiupo f,-riction element B' to either side of centrnll position tl-ie transm- ittiiiy members C'-C' 20 Will be carried l@herewit@, resultino, in flexinc, tl-le springs D'-D' intermedi,,tte their clads', and when the load is released from said antifrictioii element, the same will be returnecl ,o ceiitral position by reason of 'Uhe foi.-ce 2,5 ei@:erted tipon the transmitting elements by reac,,.i -ve force of said springs. Wbile i h,,tve herein shown and describec, what I now consider the preferred maiiner of carryino, o-Lit 'uhe invention, the sgme is qo Merel-v iii'Listrative,' and I conten-ipl-Ate all 'han!-Tes and iii 0 -Yi I odifi . caltions that c rae withi the @-cope of the claims appendecl hereto. I