US859475A - Roller-bearing for railway-cars. - Google Patents

Description

No. 859,475. RATRNTRD JULY 9,1907

' R. s. woons s 3. 140GB.

ROLLER BBARRNG' RoR RAlLwAY ARS.

APPLICATION FILED AUGJ, 1906.

UNITED sTAfrns Partant ernten.,

EDWIN S. WOODS AND JOHN lTAGOB, OF CHICAGO, ILLINOIS.

ROLLERJBEARING son RAILWAY-cans.

Application led August 4 '/'o al! tol/ont iff. may concern.'

Re it known that we, EDWIN S. Woons and JoHN Moon, citizens ot the UnitedStates, and residents ol' (hitsige,V in the county of Cook and State of Illinois,

. have invented certain new and useful Imprmf'ements in Roller-Bearings; and we do hereby declare that the following is a: t'ull, clear, and exact description thereof, reference being had to the-accompanying drz'tw'ings.` andto the letters of reference marked thereon, which l'orm a part olvthis specification.

This invention relates to improvements in roller bearings for railway cars and 'is'herein shown as embodied in a .roller side bearing of the lgeneral type shown in the 'prior patent to Woods, No. 809599 dated January 9th, i906, andwhich is ldesigned to be interposed between the ear bolster and the truck of a railway car in a manner to afford -an antifriction bearing between the bolster and truck. i

lhe invention consists in the matters hereinafter set. forth and more particularly pointed out in thc appended claims. I i

Among the objects ol our inventionis to lighten the weight oi such bearings, while maintaining eliicient` strength and durability; to reduce the cost thereof,- and reduce the height over all of that portion ot' the bearing whichl is attached to the ear bolster. I v Another object of the invention is to provide an improved bearing surface tor the roller in the upper bearing member which is'formed on a part that is removably seated therein, thereby providing for readily.' interchangeable bearing surfaces and whereby also the general construction of the casting may be varied as compared to a construction wherein the bearing is formed on an integral part.' of the casting.

A still further object 01" the invention is-to improve the construction oi the casingior theupper bearing member, by which the travel of the roller is stopped at the end ot' its traverse at either s ide ot' the casing.

In the drawinesz`Fi ure l is a lon itudinal section ot the upper bearing-member of a side bearing to which our invention is applied. Fig. 2 is a cross-section thereof, on line 2-2 of Fig. 1. Fig. 3 is a fragmentary section, taken on line 3-3 of Fig. 1. spectiveview oi' the hard metal wearplate, removed Fig.4 is a perf from theupper casing. Fig. 5 is a longitudinal section of the upper `bearing member, showing, a modified arrangement of the curvedend stop for the roller.

The upper bearing member to which our improvements are applied and designated as a whole by A,

comprises a castonctal casing having apertured lugs a cz by which it is attached to the car'bolsten and formed to' provide a downwardlyopcning, longitudinally dis- Specication of Letters Patent.

Patented July 9 1907'. ,1906. Serial No. 329,233.

l facing bearing surface of said'casing, and projects l through the .lower open side ol" the chamber for con- I tact with the lower bearing, indicated by the line Cl i The said casing comprises a top wall al, side walls a2 a2,

osed roller chamber Al to receive one or 'more rollers B, adapted for rolling Contact; with the downwardly and end walls fr* a3 which are integral and incluse i said roller chamber A. v'.lhe said side walls are formed l to provide ontheir inner faces elongated channels or i recesses A2 which receive the trunnions or end bearings b ot the roller B. The bottoms o1' said channels constitute tracks that support the roller l1 through the medium ot' said trunnions when the roller is out of engagement with its bearing surfaces. construction thi` tracks upon which said rollertrunnions are supported.comprise continuous barsD D connectedl at their ends by transverse members I)1 D?, the whole constituting a separable part or member 0l said shell like the'-construction shown in the prior application of John Jacob, tiled on theth day ol' July, 1906, Serial Number 324,847. Said lower' track frame is detachably connected with the upper part of said bearing member by means of pins D`-D extending transversely through overlapping' lugs on the upper and lower members of said bearing. Either of said pins may constitute a. hinge pin and the other a fastening pin.

In accordance with one feature ol our invention, the downwardly facing bearing surface ol' the casing which the roller engages is formed on a removable hard metal plate. E that is tilted to the top and end walls of said casing. The groove a" which receives the horizontal portion c ol' said wear-plate l has. in the present instance, inclined walls which are formed to correspond with the general cenit-ally shaped ends oi the roller, while the grooved portionsI ai' of the end walls which receive they end portions of said wear plate are so formed that thc said end portions lit snugly therein as shown in Fig. In the present instance, the end portions of said wear-plate areiormed to constitute cylindricallir curved stops to engage the pcmiphery of the rollcrto arf rest the travel there/f at each and ofthe casing. ln the construction illustratedthe'terminalsoltlie curved por- 'tions of tlie'wea1-plat.e engage in abutting relation the [transverse members D ot' the lower track member ol l the bearing, whereby said plate is removably held in place withouty the necessity of additional instelling means. The employment'. ol the removable hard-metal wearing plate constructed as described enables the upper bearing member as a whole, to be material. lighti ened, as compared to a construction wherein the upper bearing surface is formedon an integral part of the cas- In the present- As before stated, thefepdsl of the curvedcomplementally to the pe ing7 inasmuch' as the casing` may be made oi a tough, relatively light metal and the wear-plate of Steeler like duiablewearing metal. The casing maybe-also materially reduced in weight and in height-over all, both oi which are important considerations in the use' of devicesy o ithis character. Moreover, the arrangement ol the wearing plate combined, as'her'ein shown,-wi th a removable lower track member, enables thefsaid wearing plate to be the' casing, andthe plate is4 held iirrnly4 in 4place without the' necessity of using additional iastening devi-ces. l wearing plate 'are and are solocatedwith respect to' the limits of travel of the roller'asgto-censtitute Curved end 'stops'for'the roller, and' thus relievethe'- resting the' 'travel'v vkheroller in tlifcasing.

A iurtherfeature of'our invention, embodied in-'the Y construction shown, consists in forming the 'curved snr-l faces? constituting the end stops' continuous with .the

" downwardly facing surface of said 4plate which is en I gaged by the roller. As herein shdwn, the 'curvature planes ofthe axis oi the yroller when arrested at one end .for the other of its travel. This arrangement-.possesses practical 'advantages 'of importance which may be mentioned the following: The said top` i .bearing surfaces of thenpper bearingmemb'er and the v than, those yshown in curved end stop arecontin'uous with each other so that there are no projections'on either of the parts on which x said bearing `surfaces or stops are formed against which 1. the roller may bethrown with-thejresult of a tendency \,\to break such yproj,e'ctio`ns .or mar' the periphery VVof the plier. Again the arrangement of connecting the parts which said straight curved surfaces are formed the manner describedhas the advantage ef'greatly strengthening the bearing at the ends thereof. it will b` observed thatthis feature oi our invention' vis espe-v cially-applicable to a closed top bearing or vwherein the top wall of the shell or casing is made integral with thev side and end walls thereof.

As shown in' Fig; 5 the feature oi'thecurved end stop surfaces formed continuous withl A bearing surface, may be applied to a cast bearingwherein said surfaces are formed on integral parts o'-said top and end yvall, 'instead ofupon a removable bearing plate as ldescribed'. As shown in said figure, the upper bearing a constitutes thelower lace of the upper vwall oi the casing, andthe curved'stops aT a at the ends oi thelcasing are iormedon the end walls al a which are the said top and end ,wa-ils, iin this'instance, being made oi greater strength the prior construction. vantages. oi continuity of surl'aeeand strength'o'i the casing obtains in this form'of bearing as it does in the A ing )etween thesame grooves in winch ilt'the lower same general manner.4 in thevbearing scribed. I

previously de As .a means of holding the lower track' membra-- against lateral stress, the said track members D are prof' vided with outer and inner parallel (langes fl r l ',*l`orm margins 'of the sideywall'of the casing, as more clearly readilyinserted into'and removed from 'roller hereinshown may constitute riphery oi theA roller .of the bearing areto therefore,'and not terms of limitation.v

. .The manner of connecting the v bearing casing with the chamber member thereof is notf.

rollertrnnnions oi thework of ar-l '.lacbb, July-5, 1906,'Serial No. 324,847.

for reasons among.

`with end bearings, tracks on on which said end bearingsrestandroll, said relier hnvthe -u'pper straight l trunnlons, ltracks The ail-- A"ment -wllh the roller und' ciu'ved bers, tlieupper member being formed to shown Figs. 2 and .3. This construction constitutes a double lock and contributes to the strength and durabilitye the casingjas a whole., V

Our-invention, while illustrated` as embodied in a roller side bearing for railway ears, may obviously be employed vin other relations where the 'construction i describedin the claims' are applicablef' For instance,- the essential features of the bearing may-be appliedjt'o the bearing at `the center plate of a ,carv truck between the truck and'body'bolster. vMoreover th'e'- lower member of lthe bearing arranged' to present the 'roller toa de vvliL wardly facing bearing surlace.- Speciiicf terms'v.' em ploy'ecl herein as indicating i track member 'of 'the' messing and the upper and lower parte beregardedas termsoi'description,

herein claimed per se, this construction being made the subject' matter oi aprior, application illed by-Jolin- We claim as our inventionef I i. Ina'roller bearing for railway cars, a casing formed to provlde :in elongated, downwardly opening roller cham- .ber provided at its Itop with i1 downwardly l'ncing hollv on' which the end bearings of theroller rest and' roll, the

end walls of the casing being curved complementally to the cylindric surface of the rollerand serving as stop surfncesto ari-'est the, travelof the roller, suid curved stop surfaces being continuous with und formed on the sume pai-basthehoriaontal downwardly facinuhearlng surface, the roller having free' i'olling-movement endwlse of thel 'casing und vertical' movementrelutively lto the tracks.

A roller bearing flor ruiiway cnrs und the like, cem-A p sing a casing formed to provide an elongated', downwardly opening roller chamber, a roller therein provided the side walls of the casing ing free rolling movementcndwlse 'of the casing und ver- -tical movement relatively to the tx-: icks, :mda wear-plate in said chamber provided withn flat horizontal, down- '\vnrdly facing llO prlsing;r a casing formed to provide un elongated, ld'ow-n- ..1

wnrdly opening' roller chamber, u roller. thereln having end made separate vfrein und removably se-y cured to the casing. ou whlch'suid roller trunnions, i'est und roll, said roller ,having free rolling movement endwlse of the 'casing and vertical movement relatively-'to the trucks, und arempvnble wear plate in said rollerchamber held in pince hy the-removable track member.

4. A roller hearing for railway cnrs and the like, coniprisimg; n casini: ormed to provide an elonimteddownwardly opening roller chamber, n' ioilei'..tiiereln provided with endbenrinizs, trncks made separate from und re- -nim-:lilly secured to the cnsing'on which said end bearings 'rest Vand roil;s1\id roller ll:\vi11g. fre'rolling movcmentendwise of the cnslni: und vertical movement 'relatively to the trucks. :md a wear pluie iirsnid chamber' provided with n horizontal downwardly facing beni-lng surface Aforenrgrlme- -l downwardly ut: its `ends lo eonslilzi-.te stopslo nl'rest the ltravel of the roller ln either direction, the lowerends of 'said curved; portlnns'ot the weer' plate eugnulmx the removable track whereby H'aid wear phitc is heid'ln plnce 5. 'A roller hezu'lni: for rnliwiry, curs und thoVlike', comi. f i

of sepnrablenpper and 'lower inernlos prislni: x1'v casing.; milde provide nn cloni gated, downwardly opening roller c hambez, :l roller in said chamberI provided with end irunnions, said lower mellber beim;f cnstl'ucted to T01-m parallel tracks un which the runnjons o1" the P01101' rest and roll and the roller having l're rolling movement endwse'nr the casing (inn wv :llx om* s1 nessus, this 31st dzly of July A. l). lQOG,

lu testimony, that: We Claim the foregoing :1S our invenl() natures in the presumes of two wit- IDWIN S. WOODS. JOHN JACOB. Wtnesse's:

W. L. HALL, Glcolmm B. Wlpxms.

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