US1236478A

US1236478A - Antifriction side bearing.

Info

Publication number: US1236478A
Application number: US17082717A
Authority: US
Inventors: Hubert M Perry
Original assignee: ALBERT G WELCH; EDWIN S WOODS
Current assignee: ALBERT G WELCH; EDWIN S WOODS
Priority date: 1917-05-25
Filing date: 1917-05-25
Publication date: 1917-08-14
Anticipated expiration: 1934-08-14

Description

H. M. PERRY.

ANTII-RICTION SIDE BEARING.

APPLICATION FILED MAY 25, I9I7. 1,,A7, Patented Aug. 14,1917. I

2 SHEETS-SHEET I.

H. M. PERRY.

ANTIFRICTIQN SIDE BEARING.

APPLICATION mzo MAY 25-. 1912.

1,236,478. Patented Aug. 14,1917. E

2 SHEETS-SHEET 2.

' HUBER!!! Ill. PERRY, OF CHICAGO, ILLINDIS,"lASSIG1\TOR TO ALBERT G. WELGH, TRUSTEE '01? EDWIN S. WOODS, DECEASED.

ANTIFRICTIONSIDE BEARING.

Specification of Letters Patent. Patented Aug. 14, 1917.,

Application filed May 25,1917. Serial No. 170,827.

To all whom it may concern:

Be it known that I, Hunnn'r M. PERRY, a

citizen of the United States, and a resident of Chicago, in the county of Cook and-State of Illinois, have invented certain new and 1 accompanying drawings, and to the letters of reference marked thereon, which form r a art of this specification. his invention relates. to improvements in antifriction side. bearings and consists of the matters hereinafter described and more particularly pointed out in the appended claims.

The object of the invention .is to provide an antifriction, side bearing comprising but few parts so arranged that they will automatically adjust themselves to the shifting positions of the body and truck bolsters of a railway car, so that the transmitted load is at all times distributed equally to the antifriction element in the plane of its ro-- tative axis.

Other objects together with the several advantages of my improved antifriction side bearin ceed w1th my specification.

will more fully appear as I pro- 2 In the drawings: Figure 1 illustrates a transverse, sectional view through an antifriction side bearing embodying my invention, the plane of the '35 sectionbeing indicated by the line ,1 '-1 of Fig. 2.

Fig. 2 illustrates a top plan View of the same. I 1 Fig. 3 illustrates a 'longitudmal section through the antifriction side bearing, the

plane of the section being indicated by the line 3-3 of Fig. 2.

P Fig. 4 illustrates a perspective view of a rocking member or shoe forming a part. of

my improved antifriction side bearing.

Fig. 5 is a view similar to that shown in .-Fig. 1, and illustrates a modifiedform of my improved antifriction sidebearlng.

Referring now in detail to that embodiment ofthe invention illustrated in the accompanying drawings and particularly in Fi s. 1 to 4 inclusive :10 indicates a casing an '11 indicates an antifriction roller coning is specifically illustrated herein, as of the type which is adapted'to be'attached to the truck bolster of a railway car. 12 indicates said truck bolster and 13 indicates 'the associated body bolster. The bearing is adap ed to transmit load from said body bolster to said truck bolster in a familiar manner. The truck bolster is illustrated in this instance as constructed to present a horizontal top face upon which the bearing rests.

The casing 10 .is preferably made rectangular and somewhat elongated in plan and is open at its top and bottom. It has upright side and

end walls

14, 15, respectively, and has at the bottom edges of said walls, horizontal cars 16 by meansof which it is attached to the truck bolster 12. A strengthening or bracing ribl6 connects each car 16 with the associated side wall and ventilation openings 17 are provided in the bottom edge of each side wall between the ribs 16 and the adjacent end walls 14. The

7 bottom, inner edges of the end walls 14 are recessed to provide shoulders 18 (see Fig. 3) to receive and hold in place the marginal ends of a flat wear late 19, which closes the open bottom of Said casing when saidc'asing is attached to the truck bolster.

Within the casing '10 and resting upon the wear 'plate l9, is a rocker 20 (see Fig.

, 4) which approximately fills said casing. Said rocker is capable of a limited, rocking movement and is made in the form of an open top, rectangular, comparatively shallow shell having a horizontal, bottom Wall 21, upright side walls 22 and upright end walls 23 which arepreferably made higher at their middle and thicker; than said side walls 22. Thebott'om surface 24 of the horizontal wall 21 is curved or rounded throughout its greater length from end to end of the rocker, the end parts of the bottom surface of said horizontal wall being formed to provide transverse stop shoulders 25 for a purpose soon to appear. The said rounded surface 24 is preferably a cyllndric surface described about an axis located in the trans verse median plane of the rocker, preferably at a considera le distance above the top sur- Y face of theantifriction roller 11. The axis of curvature of said cylindric surface 24 is tained therein. The antifriction side bearnon-rotatively mounted in suitable openings formed in the thickened end Walls 23 of the rocker, a journal sleeve or bushing 27 being secured in said roller and bearing upon said shaft. As shown the shaft 26 is cut away or flattened at one of its ends as at 28, the associated hole in one of the end Walls of the rocker being formed to receive said flattened end and hold said shaft against ro-tative movement. Ventilation openings29 are provided in the bottom horizontal Wall of the rocker which open into the interior of the casing 10, so that dust, dirt, or other foreign substances cannot accumulate in the interior of said rocker.

On the outer face of each side wall of the rocker, at its. middle and near its rounded, cylindric, bottom surface and in the plane of its transverse median axis, are laterally extending studs 30 which project into downwardly opening, hollow, U-shaped housings provided for by bosses 31, made in-. tegral, as shown, with the side walls 15, of the casing. This structure just described holds the rocker in alinement with the easing and prevents endwise, slipping movement of the rocker within the casing during its operation, but does not prevent the rocking movement thereof.

In Fig. 5 is shown a modified form of the invention, which is more particularly adapted for use in connection with. a truck bolster having a bearingfsurface'which is inclined to the horizontal instead of being 'arranged in a horizontal plane as before mentioned. In this instance, the truck bolster -12 is shown as inclined and no wear plate 19 is used. The rocker QO en-gages directly upon said body bolster. Under such circumstances, I preferably "describe the cylindric bearing surface 24 of the rocker 20" about an axis located in a plane above and extending at a right angle to the inclined bearing surface of the truck bolster 12 all of the other parts of the bearing, as awhole, being substantially the same as before described and illustrated in Figs, 1 to 4 inclusive of the drawings.

It is apparent that when the load is greater at one end of the antifriction element or roller 11, than it is at the other,

the rocker will rock crosswise ofthe casing and automatically bring the antifriction element or roller 11 into such position as to present the full line, intended contact thereof to the body bolster. This rocking movement of the rocker is limited by the engage ment of the transverse stop shoulders 25 with the surface "pen which the rocker has 5 rocking bearing.

The improved side bearing thus provides for-the relative rocking or swaying movement of thebody and truck bolsters in their vertical planes and eliminates unequal wear upon the roller 11.

friction side hearing, I have referred to cer- I tain details of mechanicalconstruction and arrangement of parts I do not wish to be limited thereto except as may be pointed out in the appended claims.

I claim as my invention:

1. An antifriction side bearing comprising a casing adapted for attachment to a truck bolster, a rocker having side members, an antifrictionroller rotatively mounted in said side members, said rocker having a cylindrical bottom with its axis arranged transversely of the axis of said roller, and means providing a flat seat for the cylindrical.bottom of said rocker. I

2. An antifriction side bearing comprising a casing adapted for attachment to a truck bolster, a rocker consisting of a shell having side and end Walls and a bottom wall,

-an antifriction roller rotatively mounted in said "side walls, the bottom wallof said rocker having a cylindrical surface with its axis arranged transversely of the axis of said roller and in a plane extending transversely of said bolster and at right angles to the top plane thereof, and means provid- 1 ing a flat seat for the bottom surface of said rocker.

3. An antifriction side bearing compris- :ing a casing adapted for attachment, to a truck bolster, a rocker having side members, an antifriction roller rotatively mounted 1n said side members, said rocker having a cylindrical bottom with its axis arranged transversely of the axis of said roller, means providing a Hat seat for the cylindrical bottom of said rocker, and means at the ends of the bottom surface of the rocker to engage said flat seat and limiting therocking movement of'said rocker.

4:. An antifrictionvside bearing comprising a casing adapted for attachment to a truck bolster, a. rocker having side members, an antifriction roller rotatively mounted in said side members, cylindrical bottom with its axis arranged transversely of the axis of said roller, and

means providing a flat seat for the cylindri-' cal bottom of said rocker, said means insaid rocker having a eluding a plate protecting the top of said truck bolster, a rocker having side members, an antifriction roller rotatively mount ed in said side members, said rocker having a cylindrical bottom surface the axis of which is arranged transversely of the axis of said roller, and means providing a flat seat for the bottom of said rocker, said rocker and casing being provided with associated parts to lock said rocker to its seat but periniting its free rocking movement.

6. An antifriction bearing comprising a casing, means providing a flat bearing surface at the bottom of said casing, a rocker in said casing, said rocker having a longitudinally arranged cylindric bearing surface adapted to rock on said flat bearing surface, shoulders at the ends of said curved bearing surface, limiting the rocking movement of said rocker, a shaft fixed in said rocker and extending transversely to said cylindric bearing surface, a roller having a bushing journaled on said shaft, and means on said rocker between its ends adapted to coact tit with fixed parts of the casing preventing endwise slipping or twisting movement of said rocker on said flat bearing surface.

7. An antifriction bearing comprising an open top casing, a plate confined in the bottom of said casing and providing a fiat bearing surface, a rocker in said casing, said rocker having a longitudinally arranged, cylindric bearing surface adapted to rock on said flat bearing surface, shoulders at the ends of said cylindric bearing surface, limiting the rocking movement of said rocker, a shaft fixed in said rocker,and extending transversely to said cylindric bearing surface, a roller having a bushing journaled on said shaft, and means on said rocker between its ends adapted to coact with fixed parts of the casing to prevent endwise slipping or twisting movement of said rocker on said plate.

In testimony, that I claim the foregoing as my invention 1 afiix my signature in the presence of two witnesses, this 4th day of May A. D. 1917.

HUBERT M. PERRY. Witnesses:

KARL W. DoLL, R. A. RAYMOND.