US599637A - Draw-bar for railway-cars - Google Patents

Description

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G. A SCHR OYER. DRAW BAR FOR RAILWAY CARS.

o. 599,637. Patented Feb. 22, 1898.

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G.A.SOHROYER. DRAW BAR FOB, RAILWAY CARS. No. 599,637. Ppizqnted Feb. 22", 1898:

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- UNITED STATES PATENT OFFICE.

CHARLES A. SOHROYER, or CHICAGO, ILLINOIS.

DRAW-BAR FOR RAI LWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 599,637, dated February 22, 1898.

Application filed March 22, 1897.

To all whom it may concern:

Be it known that I, CHARLES A. SCHROYER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Draw-Bars for Railway- Oars, of which the following is a specification.

The object of my invention is to provide a simple, economical, and eificient draw-bar with buffing mechanismand inclosing holding-stop mechanisms, and is intended to be an improvement upon the mechanism described and claimed in Letters Patent No. 438,386, granted to me the 14th day of October, 1890.

The invention consists in the features, combinations, and details of construction hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a plan view of a draw-bar, looking at it from below and constructed in accordance with my improvements; Fig. 2, a side elevation of the rear end of the draft-arm and a portion of the stop-casting; Figs. 3 and 4:, enlarged crosssectional views taken on the lines 3 and 4, respectively, of Fig. 1; Fig. 5, a side elevation of one of the inclosing stop-castings, looking at it from the interior; Fig. 6, a plan view of a modified form of draw-bar and other parts constructed in accordance with my improvements, looking at it from below; Fig. 7, a side elevation of one of the inclosin g stop-castings shown in Fig. '6, looking at it from the interior; and Fig. 8, a cross-sectional view taken on line 8 of Fig. 6.

In constructing a draw-bar in accordance with my improvements I make a draw-bar proper, A, of the desired size and shape and provide it with a yoke B, which forms a pocket, in which the main bufier-spring O is inserted. Arranged in the same pocket are followerplates 0 0, one at each end of the main spring mechanism, so that when the parts are in their operative position the followerplate c, by meansof the yoke, is pulled against the main spring, and when the draw-bar is pushed backward it impinges directly on the spring by means of the follower-plate c. To sus tain these parts in position'and provide stops for limiting the motion of the follower-plates and compressibility of the buffer-springs, I provide .stop-castingsD D, one at each side of the draft-arm and gained or otherwise Serial No, 628,572. (No model.)

set into the sills E E and provide them with shoulders d d to limit the motion of the follower-plates. The stop-castings are preferably secured to the sills by means of bolts and nuts e,which sustain them in desired position, and such castings may be provided with bars 61 that are secured to the lower side of the castings and prevent the follower-plates from being removed until desirable or necessary.

In this art and in my former construction springs for absorbingthe shocks due to the usage of the railway-cars are arranged in tandem relation. These springs are bolted together and are held in proper relation and connection with the draw-bar by means of a long bolt. This construction involves considerable labor and time in the assembling of the parts, for the reason that the draw-bar with all of the springs has to be assembled first and then raised into position.

Being erable time and involves considerable trouble to place such parts in their proper position. In order to obviate this objection and enable the parts to be placed in position separately and economically, I provide the stop-castings D D with a rearward extension D and D which form a cylindrical chamber or pocket (i into which the rear or auxiliary spring mechanism G may be inserted. This auxiliary spring is usually a little longer than the main springs, so that the compressibility or movement of the main spring maybe exhausted before the second spring is exhausted or its motion completed. The principal advantage due to the inclosing stop-casting above described is the fact that the auxiliary spring may be independently inserted in position first and the draw-bar with its pocket and follower-plates be afterward inserted in place. It will be apparent that this may be performed quickly and economically.

In Figs. 6,7 ,and 8 I have shown my improvements applied to a draw-bar in which a set of springs H and H are used in multiple relation with each other--that is, two springs or sets of springs are used side by side. draw-bar A with its yoke B is in all respects constructed similar to those described in connection with the preceding figures. The in- The IOO

end of the main spring mechanism, stop-castings arranged one at each side of the draw-bar to limit the movements of the follower-plates and provided with rearward extensions to form a holding-pocket and substantially a complete closure for auxiliary spring mechanism, and auxiliary spring mechanism in the pocket of the stop-casting, substantially as described.

CHARLES A. SCHROYER. Witnesses:

THOMAS E. MGGREGOR, THOMAS F. SHERIDAN.

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