US294994A - Williamx h hacklandee - Google Patents

Description

Unrrnn raras muon,

AfrnNr CAR-BRAKE.

SPECIFICATION forming part of Letters Patent No. 94,994, dated March 11, 1884.

Application led January l5, 1584. (No model.) Patented in Germany February 25, 188:2, No. 19,464.

-pended in front of the wheel. of a car, with means for automatically droppingthe shoe upon the rail under the wheel, so as to arrest the movement of the car, such means being brought into action by any obstruction on the A or wood.

track which may be encountered bythe car.

A is the brake-shoe, .which may be of Viron It is formed, preferably, as shown in the drawing, curved on the face next the wheell i to lit the curvature of the latter, the lower edge being straight to lie on the rail.A This brake-shoe is suspended from the car-body B by two swinging arms, C and D, the arm G being pivoted at its upper end to the bottom of the car-body, as at a, and at the lower end to the said shoe, as atb, so that when said arm swings downward on its upper pivot the shoe will drop down upon the -rail immediately in front of and in contact with the wheel E, said arm being slotted at its upper end, so as to have a longitudinal,movement on its pivot. There may be two arms, one on each side of the shoe, each having a separate and independent pivotal connection at its upper end to the car-body. rlhe armD is in two parts, cl d, the one being made to slide longitudinally on or in'th'e other. One may be a tube and the other a rod fitted to slide in it. The part d is hinged or pivoted to the car-body, as at c, so that when the part d is left free to slide inpart d the shoe will drop down upon the rail F. Under the wheel c is a hook, pivoted on the part 'd above the upper end of the part d', and

f is a stud fixed in the part d', so that said hook may engage with the stud and hold the' -p'art d from sliding down.

Under the platform is arranged transversely thereto a shaft, G, journaled in suitablebrackets, 71 attached to the under side of the platform, and from which is suspended by suitable rods, i, a bar or frame, G', which extends across the car and down to near the rails of the road, in front of the wheels. On this shaft G is also xed an arm, H, extending upward, and the outer end of which is connected by a rod or chain, g, to the hook c, the arrangement being such that when thel frame G encounters an obstruction on the track said frame is swung 1 back under the car, thereby rocking the arm H forward. rllhe hook e is thereby detached from its engagement with the part d of arm vD, and the shoe is thus allowed to drop down upon the track under the car-wheel.

In order that a small obstruction may be removed from the track or forced along in front of the car without causing the shoe to fall down under the wheel, a springvmay be employed to 'maintain the frame in its directly downward pendent-position, which will oppose the requisite resistance to the inwardmovement of the frame.' I represents such a spring, one end of which is attached to the platform and the other presses against the arm D.

In order to provide means whereby the brakeman on the car may at pleasure drop the shoe upon the rail, Iattach a chain or cord, n, to the vend of the arm H, carry it under aloose pulley, J, and up through the platform of the car,

Preferablyit within reach of the brakeman. is connected on the platform to a lever or bar, Z, suitably supported or arranged on the platform, whereby the brakeman can conveniently draw up the chain or cord to detach the hook e. If preferred, the chain or cord may be attached directly to said hook.

Means are provided whereby the brakeman on the platform may restore the shoe to lts suspended position after being let down upon the rail. Io this endI attach a chain or cord, n2, to the upper end of the part d of the arm D, carry this over a loose pulley, L, thence under a second pulley, J', under the platform,

roo l the upper end of which is made fast tothe part d, with the lower end resting against the hook, will serve the purpose.

I do not limit myself to the precise form of the devices described for detachably connecting the part d to the part d ofthe arm D. Any equivalent devices may be employed whereby the part d may be released, so as t0 slide downward by the swinging of the frame G inward u nder the ear.

A shoe with similar attachments may of course be provided for each side of the car, and then, if preferred, a single chain or cord, a', with two branches connected severally to the two latching-hooks c, maybcprovided and employed. So, also, a single chain or cord, n, with two branches connected severally to the two lower parts, d, ot' the arm D, (one on each side of the ear,) may be employed.

That I claim as my invention, and desire to secure by Letters Patent, is

l. The Combination, with a railrozul-ear, o1' a brake-shoe suspended, as described, by arms bar, or frame, G, under the end of the car, con- C D underneath thoear, and aswinging brake, nected, as described, to a latching device on arm D, whereby the swinging of said bar or frame back and under the car will autoinatically detach said latehing'device and permit the said bralie-shoe to drop downward upon the railroad-track in front of and under the car-wheel, all as specified.

2. The combination, with a railroad-ear, ot' the shoe A, arms C and D, the latter formed oi' two parts, d d', provided withthe described latching device, the chain or cord connected to said latching device and passing around a loose pulley, J, under the platform of the car, upward above the same, all as and i'or the purpose described.

w. iiaciiLNninz.

SAMUEL Sifioiinixx, Tiros. Rin'rnANN.

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