US1500149A - Antifriction bearing - Google Patents

Description

July 8, 9246 1,500,149

J. F. O'CONNOR ANTIFRICTION BEARING Filed July 9, 1923 Fig Patented July 8, 1924.

- UNITED STATES 1,500,149 PATENT OFFICE.

JOHN F. OG'ONNOR, or CHIQAGO, ILLINOIS, assIGNoIt, BY MESNE ASSIGNMENTS, TO

w. H. MINER, me, A CORPORATION or DELAWARE.

ANTIFBICTION BEARING.

Application file d July 9,

Be it known that I, JOHN F. OCoNNoR, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Antifriction Bearings, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates to improvements in anti-friction bearings.

An object of the invention is to provide an anti-friction bearing, especially adapted for railway cars, which bearing consists of few parts each of such design as to permit of economical manufacture, the parts being also so arranged that the anti-friction element proper is automatically self-centered under the influence of gravity, when relieved of load. 7

The invention furthermore consists in the improvements in the parts and devices and in the novel combinations of the parts and devices as herein shown and described and made the subject matter of claim.

In the drawing forming a part of this specification, Figure 1 is a vertical, sectional view taken through the ends of the body and To all whom it may concern:

truck bolsters of a railway car showing my improvements in connection therewith. F igure 2 is a bottom plan view of the side hearing proper illustrated in Figure 1. And Figure 3 is a vertical, sectional view corresponding gsubstantially'to the section line 3-3 of Figure 1. I

In said drawing, denotes the upper portion of a truck bolster of a car and 11 the underside of the opposed body bolster. In the instance shown, the improved bearing is attached to the body bolster and comprises, broadly, a retaining housing or base casting A; an anti-friction element proper B; and a pair of counter-weights CC.

The housing A, preferably a malleable casting, is of more or less box-like form having a flat upper wall 12; curved end walls 1313, and depending vertical side walls 1414, each of the latter including an offset extension 15 having vertical end walls 1616, the latter functioning as vertical guides for the counter-weights as hereinafter described. The housing A is provided with suitable lugs at its ends 17 by which the housing is adapted to be riveted or 1923. Serial No. 650,206.

otherwise rigidly secured to the bolster. Preferably, an inserted hardened wear plate 18 is employed, the latter being entered through suitable openings in the end walls of the housing and secured to the latter by rivets 1919. V

The anti-friction element B is in the form of a cylindrical roller, although the same may take other shapes as will be apparent to those skilled in the art. Said anti-friction element B is centrally cored to loosely receive a pin 19 which is entered through suitable openings 20 in the side wall of the housing before the wear plate 18 is inserted, after which, as apparent from an inspection of Figure 1, the pin 19 drops below the openings 20 and the parts thus held in assembled relation.

Two counter-weights C are employed, each of like construction. Each of said counter-weights is preferably in the form of a substantially rectangular, thick, heavy plate of such horizontal dimension as to slide smoothly between and be vertically guided by the vertical walls 16 of the lateral extensions in the side walls of the housing, hereinbefore referred to. Each of said plates is provided with a double cam groove 21, the portions of which converge upwardly to a centralpoint as indicated at 22. Said double cam grooves loosely receive the end portions of the pin 19, as clearly indicated in Figure 3, the counter-weights being sup ported by said pin. In this connection, it will be understood that the extreme ends of the pin 19 are, in turn, supported on the bottom horizontal edges 23 of horizontally elongated recesses 24 provided in the side walls of the housing. The counter-weights C are shown in their normal position in Figure 1 'and it will be obvious that the same are adapted for upward movement within the housing.

The operation of the bearing is as follows: When the anti-friction element is moved to either side of central position, as fo'r'instance, toward the right as viewed in Figure 1, the pin 19 carried thereby will' IIIOVG' in a horizontal line. As said pin so moves it is evident that it will engage the upper edges of the sections of the cam recesses 21 at the righthand side of the vertical center and thereby elevate said counterweights within the housing. When the load is removed from the anti-friction element, the counterweight-s descend vertically under the influence of gravity and the upper edges of the cam recesses automatically force the pin 19 back to central position untilthe pin reaches the center in the double cam recesses 21. As will be obvious,

this compulsory return of the pin causes,

the anti-friction element to be carried back simultaneously therewith, thus restoring all of the parts to normal position and ready or a. succee ing actuation in ei her dire t: tiont In this co nection, it will he observed that sh ng of he anti-friction e ement fro vib ation or jarring is substantially co pletely el m nated sin e t e anti r ct on element cannot move Without elevating the counter-weights; end it i necessar to epp y considera e po er o effect the elevet oh of said. c unter-Weights.

I have herein shown nd des r ed het I. now consider the p e er ed menn of carrying out my inventi but t e sem i merely illustreti 'e and I contempla e. a l c anges and modifications tha c me Within the scope, o the claim opp nded here 1 claim:- t

1. In an anti-friction hearing, the combi-- nation With a housing adapted to be secured to a bo ster or th like; of an antir cti element Within said. housing adap ed or olling movement o e t e side oi central ormal posi ion; a counter eight erticelly, slidably, mo nted on said o s ng and a inge. dou e m recess therein metrically arranged with respect to the vertical center line thereof; and n axially li r posed projection carried by and movable bod ly with said elemen and xtended Withn said recess whereby; w en se d eleme t is moved to either side of central position, said counter-weight is vertically elevated and adapted to ret rn the element to central position when said element is relieved of load.

2-, In an anti-friction bearing, the combination with a housing adapted to be secured to a bolster r th like; f an ant -friction e ement within said housing dop ed r rolling movementyto either s de of no mol,

central position; a pair f counter-W ights vertically, e de y mo nted o said housi g and located at opposite ends f said element, each of said counte eights he-ving-- a double cam recess therein symmetrically disposed with respect to the er ic l cent ine there f; and axi lly di posed p ojem tion on the nds of sa d. e ment, s d pro jections ng ex nded W thin said rece ses and o pe e e With thelette o ele ate the counte g s hen s id el ment is moved to either side of central position.

3. In an anti-friction bearing, the comhination With a housing adapted to be secured to a bolster or the like; of an antifriction cylindrical roller disposed Within said housing and adapted to roll to either side of central position; a counter-Weight vertically, slidably mounted on said housing and having a double cam recess symmetrically arranged with respect to the vertical center line thereof; and an axially disposed projection carried by said roller and extending within s id ecess and co pe ing With the latter to eifect elevation of said counter weight when the roller is moved to eith r side of central posit on t e. n en ir fr o i n ng, t combin tion with a. housing apted o e se cured to e bo ster o he lik of on ent lfriotiony indrica roll d po ed i in id using and adopt o ro to i h r side. of cent p s on he ei a pair of counter-Weights each vertically slidz bly mounte it in said housi g, ach of s c untereights h ving a d u e ce recess symmetrically disposed with respect to the ver ica center line o the ea ing; an xelly dispos d projec ion f om. the e d of sa d roller, s id p jectio s b g sp sed Withinsaid recesses and co=operable with the le er to e f ct elevat n o th co n Weights When the roller is moved in either side of ent al po ition.

5- In a side bea ng for r ilway ars, the omb nation with e housi g d pted to be secured to the underside of the body bolster and havingdepending side Walls, each of said side Walls being provided with a horizontal ledge and a vertical guide on the in; nor face thereof; of an anti-friction element disposed Within said housing and adapted for rolling movement to either side of central normal position therein; and a pair of counterqveights, one at each end of said element, and each vertically slidably mounted in one of the vertical guides of the housing, each of said counter weights having a double cam recess symmetrically disposed with the Vertical center line of the ea ng, said eleme t ha ing ly extended projections at each end passing through said cam recesses and supported on said, zon al dges- In Witness that I claim the foregoing I have hereunto subscribed my name this 6th day of Ju y, 2

JOHN F. OCONNOR. Vitnesses:

FRANOES SAVAGE, HABRIETTE M. DEAMEB-

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