US2486571A

US2486571A - Buffing mechanism

Info

Publication number: US2486571A
Application number: US612615A
Authority: US
Inventors: Roland J Olander
Original assignee: W H MINER Inc
Current assignee: W H MINER Inc
Priority date: 1945-08-25
Filing date: 1945-08-25
Publication date: 1949-11-01
Anticipated expiration: 1966-11-01

Description

Nov. 1, 1949. R. J. oLANDl-:R

BUFFING MECHANISM Filed Aug. 25, 1945 lzVen/or: Roland I OZamZer;

Patented Nov. 1, 1949 2,486,571 BUFFING MEGHANISM Roland J. Olander, Chicago, IlI'., assignor to W. H.

Miner, Inc., Chicago, Ill., a corporation of Dela- Ware Application August 25, 1945, Serial No. .612,615

3 Claims.

This invention relates to improvements in buffng mechanisms for railway cars.

One object of the invention is to provide a bufling mechanism for railway cars including a buer face plate and spring resisted side stems for supporting the face plate from the usual end platform of the car, wherein the buffer side stems are readily removable without disturbing the other parts of the mechanism by so constructing the parts that the side stems and their associated springs may be withdrawn through the rear guide brackets for the stems.

Other objects of the invention will more clearly appear from the description and claims hereinater following.

In the drawing forming a part of this specilcation, Figure l is a broken,top plan view of the end platform and buffer face plate of a railway car, illustrating my improvements in connection therewith, the end platform being partly broken away to show the parts beneath the same, the rear guide bracket for the buffer stem and the buffer side stem spring being shown in horizontal section. Figure 2 is a horizontal, longitudinal sectional view taken through the rear guide bracket of the buffer mechanism and showing the rear end portion of the buiferside stem in plan. Figure 3 is a front elevational view of the two-part bearing sleeve for the buffer side stem, looking from left to right in Figure 2.

In said drawing, I indicates the usual end platform of a passenger car and II, the buffer face plate. The end platform has a pocket I2 which accommodates a usual friction shock ab sorber, indicated by I3, but not shown in detail, which cooperates with a sliding buier center stem I4, which bears at its front end on the face plate II. At opposite sides of the center stem, the end platform I0 is provided with the usual guides I5-I-5 for the buffer side stems, the guide at one side only of the mechanism being shown in the drawing.

In carrying out my invention, I provide broadly a buler side stem A at each side of the buffer center stem; a rear guide bracket B for each side stem A; a collar C on each side stem; a two-part bearing sleeve D within each rear bracket B; a buffer spring E associated with each bulfer stem; and a retaining nut F at the end of each stem.

The side stem A is of the usual design, being pivotally connected at its front end to the buffer face plate in a well-known manner, the buffer face plate being provided with a bracket IE to 2 pivot pin I'I. As is the usual practice, the front end portion of the stem A, which is indicated by I8, is of angular cross section and slidingly guided in the guide I5. The rear portion of the stem, which is indicated by I9, is. of cylindrical cross section, thus providing an abutment shoulder 2li for the collar C. The portion I9 of the side stem A is threaded. at the rear end to receive the usual retaining nut F.

The rear bearing bracket is flxedly mounted on the end platform I0 in the usual manner and is provided with a tubular sleevelike portion 2l of cylindrical form. The opening of the sleeve portion 2I, which opening is indicated by 22, is of relatively large diameter and has its longitudi nal axisarranged lengthwise of the end platform ild is in longitudinal alignment with the guide The collar C has a cylindrical spring centering portion 23 and a laterally projecting, annular flange 24 at the forward end of the portion 23. The flange 24 is of lesser diameter than the opening 22 of the bracket B so that the collar may pass freely through the opening of the bracket,

25 The collar C is mounted on the portion It of the side stem, being freely slidable thereon. This collar normally abuts the rear end of the guide I5 and the shoulder 20 of the side stem A.

The bearing sleeve vD comprises two similar sections surrounding the rodlike rear portion i9 of the side stem A within the bracket B. The two sections of the sleeve D together form a substantially cylindrical, tubular member, which is split in half lengthwise. The sleeve D has an outstanding, annular flange 25 at the forward end bearing on the front side of the tubular section 2I of the bearing bracket B. Forwardly of the flange, the sleeve D is provided with a forwardly projecting, cylindrical spring centering portion 26, corresponding in diameter to the centering portion 23 of the Collar C.

The buffer side stem spring E is of the type usually employedin connection with buffer side stems, being in the form of a helical coil surrounding the stem. The spring E bears at its front and rear ends respectively on the flange 24 of the collar C and the flange 25 of the twopart sleeve D. The projection 23 on the collar C and the projection 26 on the sleeve D, over which the opposite ends lof the spring are telescoped, hold the same centered.

The nut F, which is threaded on the rear end of the side stem A, bears on a washer 2l in shoulwhich the front end of the stem is attached by a dered engagement with the rear end of Athe guide bracket B to limit forward or outward movement of the side stem.

In removing the side stem, the same is rst detached from the face plate I I by removing the pivot pin l1. The split bearing sleeve D is then pushed forwardly out of the bracket B against the resistance of the spring E until it is entirely clear of the bracket. The sections of the bearing sleeve D are then separated and removed. This leaves the opening of the bracket B clear for withdrawal of the side stem A, spring E, and collar C. All of these parts may be removed as a unit by pulling the side stem with the spring E and collar C thereon rearwardly through the opening '22 of the bearing bracket B.

In assembling the side stem with the other parts, a procedure substantially the reverse to that just described is followed.

I claim: I

1. In a bufling mechanism, the combination with the end platform of a car; of a buffer face plate; a side stem for supporting said face plate from the end platform; a spring surrounding the rear end portion of said stem; a collar on said stem on which the front end of said spring bears; a rear supporting bracket for the side stem, said bracket having an opening therethrough of a size to permit withdrawal of the side stem, surrounding spring, and collar lengthwise therethrough; a longitudinally split, two-part removable bearing sleeve in which the rear end of the side stem is slidingly guided, said sleeve being seated in and fitting the opening of said bracket with the parts thereof embracing said stern at opposite sides; and means for holding said sleeve against rearward movement in said bracket.

2. In a bufflng mechanism, the combination with the end platform of a car; of a buffer face plate; a side stem for supporting said face plate from the end platform; a buing spring surrounding the rear end portion of said stem and yieldingly resisting inward movement of said stem; a rear supporting bracket for the side stem, said bracket having an opening therethrough of a size to permit withdrawal of the side stem and surrounding spring therethrough; and a longitudinally split, two-part, removable bearing sleeve in which the rear end of the side stem is slidingly guided, said sleeve being seated in and fitting the opening of said bracket with the parts thereof embracing said stem, each of the parts of said sleeve having a flange at the front end thereof bearing on the front end of said bracket to hold said parts against rearward movement, said sleeve bearing at its front end on the rear end of said spring.

3. In a builing mechanism, the combination with the end platform of a car; of a buffer face plate; a side stem for supporting said face plate from the end platform; a collar on said stem having shouldered engagement with the stem to limit forward movement of the same on said stem; a spring surrounding said stem rearwardly of said collar; a rear supporting bracket for said side stem, said bracket having an opening therethrough, through which said stem projects, said opening being of a size to permit lengthwise Withdrawal of the buffer stem therethrough with the surrounding spring and collar thereon; a two piece, lengthwise split, bearing sleeve within the opening of said bracket embracing said stem at opposite sides, each part of said sleeve having a flange at the forward end thereof bearing on the front end of said bracket, said spring bearing at opposite ends on the rear side of the collar and the front end of said sleeve; a nut on the rear end of said stem; and a washer interposed between said nut and the rear side of the bearing bracket.

ROLAND J. OLANDER.

REFERENCES CITED The following references are of record in the file of patent:

UNITED STATES PATENTS Number Name Date 1,051,039 Westlake et al. Jan. 21, 1913 1,054,953 Westlake et al Mar. 4, 1913 2,437,429 Hossfeld Mar. 9, 1948