US368838A - Car-brake - Google Patents

Description

(No Model.)

J. G. LARKIN.

OAR BRAKE. No. 368,838. Patented Aug. 23, 1887.

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JOHN CYRILLE LABKIN, OF \VHITEFIELD, NEW HAMPSHIRE, ASSIGNOR TO ALSON L. BROWN, WARREN G. BROWN, AND EDWARD BAY, OF SAME PLACE, AND OSSIAN BAY, OF LANCASTER, NEW HAMPSHIRE.

CAR -BRAKE.

SPECIFICATION forming part of Letters Patent No. 368,838, dated August 23, 1887. Application filed July 9, 1887. Serial No. 243,808. (No model.)

To aZZ whom it may concern:

Be it known that I, JOHN OYRLLLE LARKIN, a citizen of the Dominion of Canada, but now residing at \Vhitefield, in the county of Coos, of the State of New Hampshire, have invented a new and useful Improvement in Railway- Car Brake Heads and Shoes; and I do hereby declare the same to be described in the follow ing specification and represented in the aco companying drawings, of which Figures 1 and 2 are opposite side elevations, and Fig. 8 an inner side view, of a brakehead and its shoe provided with my invention, the nature of which is defined in the claim hereinafter presented. Fig. 4 isa front elevation, and Fig. 5 an inner side view,of the brake-head, while Fig. 6 is a side view, and Fig. 7 a back view, of the shoe. Fig. 8 is a transverse section of the brake-head, taken through the turnbuckle and its'catch-bolt.

Fig. 9 is a view of the lower end of the brakehead, showing the T-shaped slot therein.

The brake head and shoe shown in the said drawings are analogous in various respects to 2 5 those represented in the United States Patent No. 319,731, dated June 9, 1885, and granted on an invention made by myself. There are important differences, however, which go to render the present brake head and shoe sim- 3o pler in construction and possessing advantages not incident to the other. With the head exhibited in the said patent the shoe could be coupled with it from one side only of the head, whereas according to my present improvement the shoe can be coupled with the head from either of its two opposite sides, whichas railroad employs will understand-is a material advantage, and instead of being held in connection with the head by means of a shoul- 0 der and a single-armed turn-buckle, it is secured in place by a double or two-armed turnbuckle, whose longer arm is subsequently secured in position by two studs, one of which is stationary and the other movable and provided with a spring to press it outwardly.

The brake-head A at its lower part has in it a T-shaped slot or opening, b, to receive the circular-headed lug 0, extending from the lower part of the shoe B, and, besides, the

brake-head has in its upper part, and going entirely through it, a circularly-curved areal passage, a, which opens out of the hole I) for reception of the hanging link 0. Projecting downwardly from and at right angles to the curved passage a is another curved passage, d, which goes through the head from side to side, the said two passages being to receive the curved and flanged projectionf at the upper part of the shoe. The curves of the passages and projection have their centers in the axis of the lug e. The turn-buckle D, piv oted in the upper part of the head A, has two arms, g and h, each of which extends down from the intermediate part, s, at a right angle thereto, one of such arms being longer than the other, and one being on one and the other on the opposite side of the head A. There projects from one side of the said head a stationary stud, t, and a movable stud, is, they being arranged as shown. The movable stud slides lengthwise in the head, and is held in an advanced position therein by shouldersl m, one of which is formed on the stud and the other in the socket a, for reception of the shank of the stud, there being in the said stop, and introducing the longer arm of such side to side, and with the turnbuckle D, having two arms, 9 and h, as set forth, in combination with the shoe B, having thecurved and flanged projection formed to fi t it and pass and the T-shaped groove 01' slot for reception into such passage from either side of the of such 111 ,as specified. brake-head, the said brake-head having the stationary stud z, the movable stud k, and the JOHN OYRILLE R 5 operative spring 11 of the latter for holding Witnesses:

the turn buckle in its depressed position, and JOHN G TRULAN, such head and shoe having the headed lug e EDWARD RAY.

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