US1314014A - John p - Google Patents

Description

J. F- O'CONNOR.

0. APPLICATION FILED NOV B. 1', 3 1 4,01 4 Patented Aug. 26, 1919.

JOHN F, OCON'NOR'OF CHICAGO, ILLINOIS, ASSIGNOR TO WILLIAM H. MINER, OF

GHAZY, NEW YORK.

AN TIFBICTION-BEARING.

Specification of Letters Patent.

Patented Aug. 26, 1919.

To all whom it may concern:

Be it known that I, J OHN F. OConnon, a citizen of the United States, residing at Chicago, in the countyof Cook and State of Illinois, have inve ted 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.

The object of this invention 13 to provide an anti-friction bearing of the gravity actuated type and especially adapted for use as a side bearing for railway cars and more specifically, the object of the invention is to provide novel means for insuring the return of the rocking element to normal position after each actuation of the bearmg.

In the drawing forming specification, Figure 1 is a vertical, sectional view, taken through portions of body and truck bolsters of a railway car showing my improvements applied thereto. Fig. 2 1s 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 a body bolster and 11 the upper side of a' truck bolster of a railway car. As shown, my improved side bearing is applied to the truck bolster and the same consists, broadly, of a housing or base casting A, a

rocker proper B, and a pair of pendulum elements C-C.

The base casting A is of substantially rectan ar formation having u standing side we ls 12-12 and inclined en walls 13-13. The base castin A is provided with flanges at the bottom t ereof, as indicated at 14:, by which it may be riveted to the truck bolster.

i The casting A is formed also with a bottom wall 15 adapted to act as a for the rocker B. r

The rocker B, as shown, is provided with an upper cylindrical bearing surface 16 and a correspon g concentric lower bearing surface 17 the two bearing surfaces 16 and 17 being connected by flat surfaces 18-18, preferably arranged tangential to the upper bearing surface 16. The rocker B is formed on each side thereof with bearing surface 56 a normally vertically extending slot 19,

a part of this the rocker are adapted to cotiperate with theinclined end walls 13 of the base casting to limit the rolling movement of the rocker, as will be evident from Fi 1, where one extreme position of the rocfier is shown in dotted lines.

Each pendulum member C is preferably of plate-like form having a sector-like lower section, as indicated at 21, and an arm 22. On its outer side, each pendulum member 0 is provided with a circular boss 23 adapted to act as a pivot for the pendulum member, said pivot boss 23 being mounted in a suitable bearing provided therefor in the side wall 12 of the base casting, as most clearly shown in Fig. 3. This may be accomplished by slotting the side walls of the base casting, as indicated at 24. At their upper ends, the pendulum members C are provided with inwardly extending circular bosses 25 arranged to. be seated within the corresponding vertical recesses 19 in the rocker. The lower sector-like section of the element C is preferably extended below the bottom of the rocker and for this pur pose the base casting A may be recessed'as indicated at 26,44)v accommodate the pendulum elements.

The normal position of the parts is as shown in full lines in Fig. 1. In operation, assuming that the truck bolster remains stationary and the body bolster moves to the left as viewed in Fig. 1, the rocker will be shifted to the position shown by dotted lines. Simultaneously with the movement of the rocker, it is evident that the two pendulum elements C will be oscillated about their respective pivot lugs 23 in such manner that the sector-like sections of the pendulum elements will be elevated to the dotted position shown in Fig. 1. Upon release of the actuating pressure, it is evident that the rocker itself will tend to return to normal andv this return movement will be greatly accentuated by the pendulum elements 0 acting through the lugs 25 that cooperate directly with the rocker'B. By employing the pendulum elements, the return of the rocker to normal is greatly fa.- cilitated and made more certain and in addition the mounting of the pendulum elements is such that they will serve to retain the rocker in central position with respect to the base casting A and thus eliminate the necessity for the usual toothed engagement between the rocker and base-casting.

I claim: V

1. In an anti-friction bearing, the combination with a housing, of an anti-friction element disposed within the housing and adapted for rolling movement, and means for insuring return of said element to normal position after each actuation thereof, said means including a member pivotally mounted on the housing, said member being eccentrically weighted and having a sliding connection with said element. 7

2. In an anti-friction bearing, the combination with a housing, of ananti-friction element adapted for rolling movement, and a pendulum member pivotally mounted on the housing, said pendulum member and anti-friction element havin cooperatin engaging means so arranged t at upon r0 ling movement of the element, the pendulum member is shifted to a position of unstable equilibrium and is thereby adapted to return the anti-friction element to normal upon release of the actuating ressure.

3. In an anti friction bearing, the combination with a housing having a bottom bearing Wall, of a rocker disposed within the housing and adapted to roll on said bearing wall, and a pendulum member pivotally mounted on the housing and having a sliding pivotal connection with the rocker.

4. In a side bearing for'railway cars, the combination with a base casting adapted to be secured to a truck bolster, of a rocker disposed within said base casting, a pendulum member disposed at each side of the rocker,

each pendulum member being pivotally mounted on the base casting and having a sliding pivotal connection with the rocker, the rocker being adapted to oscillate the pendulum members about their ivotal connections with the base casting when the rocker is actuated.

5. Ina side bearing for railway cars, the combination with a hollow base casting having side walls, the side Walls 'being provided with bearing seats, of a rocker mounted within the base casting between said side walls, pendulum members at each side of the rocker and located between the rocker and the side walls of the base casting, each pendulum member having a bearing ivot stud cooperable with the bearing seat of the adjacent side wall, and means for slidably connecting the rocker with the pendulum members so arranged that movement of the rocker to either side of normal causes oscillation. of the pendulum members relatively to the base casting.

6. In a side bearing for railway cars,'the combination with a base casting having side, end and bottom walls, of a rocker within said base casting and bearing upon said bottom wall, the end walls of sald casting being arranged to limit the rolling movement of

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