US1649189A - Roller side bearing - Google Patents

Description

PATENT OFFICE.

WALTER OTLTNTON ROCKENSTIRE, OF WATERVLIET, NEW YORK.

ROLLER srnn BEARING.

Application filed August 2, 1826. Serial No. 126,414.

This invention relates to side bearings for railway cars, and hasfor its principal object to provide an improved construction of .devices of the character described, wherein the i bearing element, suchas a roller, may be readily adjusted to various heights. A further object is to produce a structure wherein the bearing element is permitted to tip sideways to meet the tipping of the car body. to Other features of invention will appear from time to time as the following description proceeds.

In the drawings,

Figure 1 is a longitudinal section of a side hearing, constructed in accordance with my invention, with parts thereof shown in elevation.

Figure 2 is a transverse sectiontaken on line 2-2 of Figure 1. V Figure 3 is a top plan view of the device shown in Figure 1.

Figure 4 is a view in perspective showing the top of one of the adjusting wedges.

Figure 5 is a bottom view of one of the adjusting wedges. g

Figure 6 is a View in perspective showing the top of a roller support.

Figure 7 is a detail view of the roller.

Referring to the details of the embodiment of the invention illustrated in the drawings,

the same is shown as applied to a roller;

' bearing element 10, having .a curved support or base 11 upon which it rides so as to be automatically elevated when the cooperat ng as surfaces of the truck and bolster are moving relative to each other, as for instance in This feature of a curved is well known in the art and is shown herein merel by way of an illustrative embodiment o my invention, which maybe equally applicable to any other suitable form of bearing element.

Referring to the means for adjusting the A elevation of the bearing element, including the supportlil, the same comprises a pair of wedges 1212 disposed within and at opposite ends of a hollow base member. This basemember preferably has sidewalls opening at thetop,

bearing are disposed therein. The wedges 12-1 2 have downwardly and inwardly inclined faces 15-15 which engage correspondin inclined faces 1616 formedat opposite en s of the bearing support 11.

An adjustment screw rod 20 is arranged longitudinally adjacent the bottom of the rounding curves. support for a roller ill) and the several parts of thebase member 13, and downwardly opening I slots 21-21 are provided longitudinally of the bottom face of wedges 12--12 so as to accommodate the screw rod 20 in a suitable manner. The arrangement is such that the wedges 12-12 rest upon the bottom of the base member 13 and'operate to raise or lower the superimposed bearing support 11 by" relative movement of the wedges toward and away from each other. 4

Movement of the wed es is controlled by the screw rod 20, in the preferred form shown, this screw having right and left hand threaded portions 25 and 26 at opposite ends thereof, each of said threaded portions engaging nuts 27 and 28which are disposed in cooperating position in recesses 29 and30 respectively, formed in the lower facesof the wedges 1212.' These nuts areadapted to have close fitting engagement in their respective recesses so as to prevent their rotation when the screw 20 is rotated relative thereto, but the wedges are free to be liftedoff the rod 20 and nuts 27 and 28 when de sired. The screw rod 20 is provided with an end portion 31- extending beyond the end of th'ecasing or base member 13, in position to be readily manipulated by suitable tools,

such as a wrench, when it is desired to ad just the wedges relative to each other- As will be seen from Figure 1, the screw rod passes through an enlarged opening 32 in an upright part13 at the end of the base member 13, and is provided with a collar 33 pinned thereon, which is adapted to engage the inner face of the part 13, while a nut 34: is threaded on the outer end of the screw rod 20. With this arrangement thenut 34f may be screwed tightly against the part 13 so as to draw the collar 33 into frictional engagement on the opposite side of the part 13 andthus lock the screw against rotation.

is'then free to be turned in either direction and move' the wedges toward or away from each other through the medium of nuts 27 and 28, it being observed however that the that. the bearing arts 15 -45 of the uppersurfaces 15 -l5 o wedges 12-12 are convex '1 When the nut 34 is loosened the screw rod 20 I in form, .disposed longitudinally of the wedges, and are adapted to have cooperating engagement with concave bearing surfaces 16*-16 formed on the lower faces 16716 of the bearing support 11.. As will be seen from the drawings, the arrangement is such that the bearing support 11 with its roller 10 is provided with means for accommodating itself to various angular positions transversely of the axis of the roller.

The uses and operation of the device above described will now be clear to those familiar with the art. The bearing element and its support have arcuate cooperating bearing surfaces disposed longitudinally of the device, in the form shown the convex supporting surface comprising parts of the adjustable wedge members, as described.

While I have illustrated and described one particular embodiment of my invention, it will be understood that I do not wish to be limited to the exact construction shown and described, but that various changes and modifications may be'made without departing from the spirit and scope of my invention.

I claim as my invention:

1. In a side frame bearing, a base, a bearing member, and adjustable supporting means for said bearing member comprisin a pair of wedges disposed at opposite ends 0 said bearing member said bearing member and said wedges having cooperating arcuate bearing surfaces curved in transverse section a screw member disposed longitudinally of said base, a pair of nuts threaded in opposite directions on said screw member, a pair of wedges disposed at opposite ends of said bearing member and each provided with slots for said screw, and with recesses for receiving one of said nuts therein in non-rotating engagement, said wedges having convex upper surfaces, and said bearing member having cooperating concave lower surfaces each extending longitudinally thereof, whereby said bearing member ma accommodate itself to lateral tipping 0 the car body.

Signed at Schenectady, N. Y. this 24th day of J u'ly, 1926.

WALTER CLINTON ROCKENSTIRE.

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