US838560A - Draft-rigging for railway-cars. - Google Patents

Description

PATENTBD DEG. 18, 1906.

W-H. MINBR. DRAFT RIGGING FOR RAILWAY CARS.

APPLICATION FILED JULYlZ, 1906.

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WILLIAM H. MINER, OF CHICAGO, ILLINOIS, ASSIGNOR` TO W. H. MINER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

Specification of Letters Patent.

Patented Dec. 18, 1906.

Application filed July 12,1906. Serial'No, 325,805.

To all whom it nfl/ay concern:

Be it known that I, WILLIAM H. MINER, a citizen of the United States, residing in Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Draft-Rigging for Railway- Cars, of which the following is a specification.

My invention relates to improvements in draft-rigging for railway-cars.

The object of my invention is to provide a draft-rigging of a strong, simple, eflicient, and durable construction, which will operate to center the draw-bar and in which the devices for centering the draw-bar will also cooperate to cushion the draw-bar or to retard the expansion of the springs.

My invention consists in the means I employ to practically accomplish this object or resultthat is to say, it consists, in connection with the draw-bar, side plates or stopcastings, springs, and followers of any suitable draft-rigging construction, in providing the draw-bar with double-incline frictionshoes, one on each side thereof, and the side plates or stop-castings with sockets or bearings to receive transversely-sliding frictionblocks engaging the friction-shoes on the sides of the draw-bar and with springs operating to` press these friction-blocks against the friction-shoes on the draw-bar, so that these transversely-arranged opposing springs will at once center the draw-bar and through the interposed friction blocks or shoes also add materially to the cushioning power of the draft-rigging by-the frictional resistance incident to the frictional engagement of the friction-blocks and friction-shoes as the drawbar moves longitudinally back and forth.

`My invention also consists in the novel construction of parts and devices and in the novel combinations of parts and devices herein shown and described.

In the accompanying drawings, forming a part of this specification, Figure 1 is a plan view, partly in horizontal section, of a draftrigging for railway-cars embodying my invention. Fig. 2 is a detail perspective view of one of the friction-blocks, and Fig. 3 is a detail perspective view of one of the frictionshoes.

In the drawings, A A represent the center sills or longitudinal frame-pieces of the car,

to which the draft-rigging is secured, and A the end sill.

B is the coupler; B, thefdraw-bar, B2, the draw-bar strap or yoke; C C, tandem-arranged springs, D, thelsidegplates or stopcastings., and E the followers, the front and rear followers preferably having rounded faces e to engage the draw-bar'and draw-bar strap, and thus permit the front end of the draw-bar to more freely swing laterally from side to side, as required when the train passes around curves. The side plates or stopcastings D have the customary shoulders or stops d for the followers to abut agamst, and at their front ends'the same are provided with horizontally and transversely extending sockets or bearings d to receive the transversely-sliding friction-blocks F, one on each side of the draw-bar. The bearings or sockets d preferably have transversely-extending anges d2, integral with the side plates or stop-castings D, to give a bearing of some length to the transversely-sliding frictionblocks F.

G G are friction-shoes on the draw-bar and preferably made in separate pieces and secured in suitable sockets or recesses l) in the draw-bar, one on each side thereof. These friction-shoes Ghave double-incline or oppositely-extending friction-faces g, which fit and engage corresponding friction-facesf on the friction-blocks F. The friction-shoes G are secured in their seats or sockets in the draw-bar by a connecting bolt or rivet g, and the draw-bar B is preferably provided with a central longitudinal rib b2 to increase its strength and afford additional bearing for the rivets b3, which connect the draw-bar strap B2 with the draw-bar B.

H H are coiled springs bearing against the transversely-sliding friction-blocks F and operating to hold the same in close frictional engagement with the friction-shoes G. The

springs H bear at their outer ends in a springholder K, secured by bolts 7c to the center sills or frame-pieces A of the car, the springholders being preferably in the form of closed housings. Smaller springs 71, may, if desired, fit within the springs H.

The side plates or stop-castings D may preferably be furnished with flanges da, which iit in the recesses in the longitudinal sills or frame-pieces of the car, to which the side IOO lates or stop-castings are secured, thus affbrding an additonal anchorage therefor.

In operation the transverselyarranged springs H and blocks F bearing against the shoes G on the draw-bar not, only serve to center the draw-bar or restore it to its central position after it has been swung to one side, but also add materially to the cushioning power of the draft-rigging springs C C, owing to the friction resistance between the friction-blocks F and friction-shoes G, as the draw-bar moves back and forth. The transverse springs H, friction-blocks F, and friction-shoes G also serve to retard the movement of the draw-bar due to the expansion of the springs.

I claim- 1. In a draft-rigging, the combination with' the draw-bar, side plates or, stop-castings, springs and followers, of double-incline friction-shoes secured to the draw-bar, one on each side thereof in advance of said springs and followers, transversely-movable frictionblocks engaging' said friction-shoes, and transversely-arranged draw bar centering springs bearing against said friction-blocks, substantially as specified.

2. In a draft-rigging, the combination with the draw-bar side plates or stop-castings, springs and followers, of double-incline friction-shoes secured to the draw-bar, one on each side thereof in advance of said springs and followers, transversely-movable frictionblocks engaging said friction shoes, and transversely-arranged draw bar centering springs bearing against said friction-blocks, said side plates or stop-castings being provided with sockets or bearings to receive said transversely-movable friction-blocks, substantially as specified.

3. In a draft-rigging, the combination with the draw-bar side plates or stop-castings,l

transversely-movable friction-blocks engaging said friction-shoes and draw-bar-centering springs bearing against said friction-blocks whereby the draw-bar is centered laterally and its movement cushioned longitudinally, substantially as specified.

4. In a draft-rigging, the combination with the draw-bar, side plates or stop-castings, springs and followers, of reversely-inclined friction-shoes on the draw-bar ifi advance of said springs and followers, transversely-movable friction-blocks engaging said frictionshoes, transversely-arranged draw-bar-cenltering springs bearing against said frictionthe draw-bar, side plates or stop-castings,

springs and followers, of reversely-inclined friction-shoes on the draw-bar in advance of said springs and followers, transversely-movable friction-blocks engaging said frictionshoes, transversely-arranged draw-bar-centering springs bearing against said frictionblocks, and holders for said springs, said side plates or st op-castings having bearings therein for said friction-blocks, substantially as specified.

WILLIAM H. MINER.

Witnesses:

H. M. MUNDAY, EDMUND AnoooK.

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