US1290327A - Rocker side bearing. - Google Patents

Description

UNITED sTATEs PATENT oEEIoE. N

.Tor-IN r. oooNNon, or cI-Ircneo, ILLINoIs, AssIeNonTo WILLIAM H. MINER, or

CHAZY, NEW YonK.

nooxnn SIDE BEARING.

Application led April 1, 191B. Serial No. 225,885.

T0 all whom t may concern Be it known that I, JOHN F. QCoNNon, a citizen of the United States, residing at ,Chicago, in the county of lCook and State of Illinois, have invented a certain new and useful Improvement in Rocker Side Bean ings, 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 rocker side bearings.

One object ofthe invention isto provide a relatively cheap rocker side bearing suitable for railway cars, which side bearing includes a minimum number of parts and so designed that `the rocked will automatically return to normal osition after each actuation under the in uence of gravity.

Another and more specific object of the invention is to provide la rocker side bearing `of the type indicated so arranged that the rocker element may be employed in any one of a plurality of positions so as to successively present different sets of wearlng'surlfaces for the purpose of prolonging the life of the device.

In the drawingforming apart of this specification, Figure 1 is a vertical, sectional view through portions of the body and truck bolsters of a railway car showing my improved side bearing in operative relation therewith. The full section lines `ot the rocker indicate the normal position of the latter and the dotted lines the position of the rocker at the end of its travel in one direction. Fig. 2 is a top plan view of the side bearing proper. And Fig. 3 is a vertical, sectional view, taken substantially on 'the line 3-3 of Fig, 1.

In said drawing, 10 denotes the under side of abo'dy bolster of a.railway ear and 11 the upper portion of an opposed truck bolster. In the drawing, the improved side ,bearing is shown attached lto the truck bolsters y The improved side bearing, as shown, 1n-

cludes two elements, a retaining `or base cast-V ing *A and a rocker or anti-friction element B.

The retaining member A is of substantially'hollow box-like form having a bottom bearing wall 12, spaced "parallel side walls 13e-13, and" oppositely curved' end walls 111-44, the latter being adapted to Specification of Letters Patent.

Patented Jan. *7, `191.9.

serve as limiting stops for the anti-friction in the form of a rocker of polygonal vertical cross section. In general outline, the rocker 1s more or less triangular and 1s composed ot' three' sets of opposite, concentric, curved bearing surfaces. 16 and 116 of different radii. The surface 116 of each vseries is of relatively short radius and the corresponding opposite curved concentric surface 16 is of relatively long radius. As will be understood, each short radius surface 116 merges into tw@ bearing surfaces 16' of longer radius and disposed on each side thereof, the whole effecting the general triangular formation above referred to. With the arrangement lof concentric surfaces of different radii in series as abovefdescribed, it is evident that the rocker in: its movement from normal will maintain a fixed vertical distance between the points of contact of the rocker with the opposed surfaces on the two holsters. Furthermore, with the vrocker arranged as shown, it will be seen that it will automatically return to normal under the iniiuence of gravity after each actuation and removal ofthe pressure.

In order to positively maint-ain the proper relation between the rocker and its retain ing casting, the latter is provided with a series of spherical knobs 17-17 adapted to .coperate with corresponding recesses 18 on all the Vsides of the rocker. In this manner, the rocker cannot be shifted bodily with respect to the retaining casting A.

In order to reduce the amount of metal in the rocker and also to insure proper and uniform cooling and annealing 'of the cast metal from which the rocker B is made, the same is preferably provided with a series of transversely extending openings 19--19 and 20 symmetricallyarranged with regard to the center and surfaces of the rocker.

With the construction shown,` it 'is evident that any one of the series of opposed concentric surfaces 16 and 116 may 'be brought into action by merely turning the rocker so as to present the desired surface 16 at the bottom and the corresponding sur' face 116 at the top. In this manner, the

- position .ofthe rocker, is changed topresent new surfaces for the purpose of prolonging ablev and, as any surfaces become Worn, the

the life of the device.

The side Walls of the retaining member may be cut avvay, as indicated at 21-21, to

. permit all foreign matter vto be readily vWashed out and thereby avoid interference with the free movements of therocker.

. I claim:

l". Inya''side bearing of the character described, the combination vvithl a retaining `memberjhavinga bearing seat, of a rocker t ofA generally polygonal cross section, said rocker havinga plurality of series of opposed concentric curved bearing faces of dif- 'ferent radii, one bearing face 3of each series 1 being adapted to rock on said bearing seat l and the opposed bearing face to engage an opposite member, the position of said rocker as an entirety being shiftable with respect y to its retaining member so as to thereby utilizfeany '2a.

' yscribed, the combination with a retaining one ofthe series of opposed bearing faces. l

2. In a side bearing Iofthe character demember having a bearing seat, of a rocker Y of generally polygonal cross section, said :56' rocker having a plurality of series 'of 0pposed. concentric curved bearing' faces of diferenty radii, lonebearing face of each series. being adapted to rock on said bearing seat and the opposed bearing face to engagev an opposite member, the position of said rocker as an entirety being shiftable with respect toits retaining member so as to member after each actuation of the side bearing. .l

3. In a side bearing, the combination with a hollow box-like base casting adapted to be Secured to a truck bolster, of a rocker of substantially polygonal Vcross section mounted Within said base casting, said rocker lhaving a plurality of series of opposed concentric curved bearing faces of different radii. 4

4. In a side'bearing, the combination with a hollow box-like base casting adapted to be secured to la truck bolster, of a rocker ofsubstantially polygonal cross section mounted Within said base casting,l said rocker having a plurality of series of opposed concentric curved bearing faces of different radii', said rocker being detachably mounted Within 'the base casting and adapted to have its position as an entirety changed with respect to the base casting so as to utilize actively any one of'said series of I'concentric bearing faces.

In aside bearing of the character described, the combination with a retaining member, of a rocker of generally polygonal `cross section, said rocker having a plurality of series of concentric curved bearing surfaces of different radii, any one of which series maybe utilized actively, said retaining -member having a plurality of projections, and all surfaces of said rocker being provided with corresponding recesses cooperable Wit-h said projections in any relative arrangement of said rocker and retaining member.

In Witness that I claim thel foregoing I have hereunto subscribed my name this 27th day of Mar., 1918. I

JOHN F. OCONNOR.

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