US143083A - Improvement in car-brakes - Google Patents

Description

A. rLllmGELLnznI n Car-Brakes. N0.143,'o83. Y

Patented September 23,1873

UNITED STATES PATENT CEEIoE.

ANTOINE LANGELLTER, OF CONCORD, NEW HAMPSHIRE.

IMPROVEMENT IN CAR-BRAKES.

Specification forming part of Letters Patent No. 143,083, dated September 23, 1873; application filed April 18, 1873.

To all fat-hom it may concern:

Be it known that I, ANTOINE LANGELLIEE, of Concord, in the county of Merrimack, State of New Hampshire, have invented certain Improvements in Car-Brakes, of which the following is a specification:

The object of my invention is to provide an automatic brake for cars which may be put in operation from the engine, or from any car of a train, by bringing a slnall friction-wheel in contact with one of the wheels of the tender or by a similar operation upon any car, the revolutions of which friction-wheel will put in operation my brake upon all the cars of a train situated in the rear of the engine or car upon which the brake is first applied.

Referring to the accompanying drawings, Figure 1 is a plan, and Fig. 2 a section, of a part of a tender to which my brake is attached. Fig. 3 is a plan, and Fig. 4 a section, of a part of a car, showing the manner in which my brake is operated.

Ataa, Fig. 1, are two bunters projecting from the rear end of the tender on each side of the center, connected together by the curved iron rod b. Under the center of the tender is another rod, c, which is attached at one end to the rod b, and at the other end to the lever d. A small friction-wheel is placed immediately in the front or rear of .one of the wheels of the tender, (shown at e, Figs. l and 2,) having an axle-tree extending under the tender, and provided with a bearing fixed to the frame of the tender at f', and at the other end to a lever or other equivalent device, by which the friction-wheel may be brought in contact with the wheel of the tender at pleasure. To the ends of the lever Z chains are attached, extending, respectively, to the axle-tree of the friction-wheel, and attached as shown at-g.

When the tender is in motion, and the friction-wheel. is brought in contact with the tender-wheel, it will revolve, wind up the chains, and, bythe action of the lever d and the connecting-rods b and c, throw out the hunters a a, or cause them to project farther from the rear of the tender.

To the cars I attach similar bunters h h, Fig. 3, which, when the brake is not in operation, rest lightly in contact with the bunters upon the tender. From these bunters rods extend back under the car, each of said rods being attached at t i to levers l l attached to a bar, as shown. At B the arrangement of these levers is more distinctly shown, the opposite ends of these levers being attached to the rod 7c k, which extends under the car and nearly the entire length thereof. The crossbar to which said levers are attached at their centers is made fast to the draw-bar of the car. At the opposite end of the car is a like arrangement of bunters, rods, and levers, conn ected with the rod 7c 7c and the draw-bar. At or near the center of the rod 7c 7c I place a spiral or rubber spring, or its equivalent, which spring is fastened at the ends to the rod 7c. At m another lever is attached to the frame of the car, and this lever, near one end, as shown, is attached to the center of the spring on the rod 7c, and from .the extreme ends of this lever chains extend, as shown,.to the lever a. This lever n has its fulcrum at o, and` is attached at p to a slide on the car-frame, which carries the bearing of the friction-wheel r. This friction-wheel is shown at s, Fig. 4, and its axle-tree extends back under the car, as shown. From this axle-tree chains and rods extend to the cross-bar or whiffietree q, which is attached to the beam extending between the jaws of the brake. The rods which extend between the ends of the lever m and the whifetree g are attached iirmly to the lever m, but pass loosely through the ends of q, and are provided with nuts and stops at the ends, so that, as veither end of gis drawn back, the opposite rod will furnish a fulcrum and cause the brake to be drawn against the wheel.

It will be seen that when the bunters on the tender are forced back by the action of the friction-wheel e, as before described, they will press back the hunters h h on the car, and these in turn, by the action of the levers t' i, pull forward the connecting-rod k k, and with the rod will draw forward one end of the lever m. As this lever comes forward it acts upon the lever n, moves forward the slide fu, and presses the friction-wheel against the wheel of the car, thereupon the revolution of the friction-wheel winds up the chain attached to its axle-tree and draws the jaws of the brake up against the car-wheel, with a pressurewhich constantly increases as the car moves forward, till the wheels cease to revolve. As the rod It' k is drawn forward the levers at the opposite ends of the carl lare acted upon, pressing out the hunters x w to act upon the hunters of the next car in the rear in the same` manner that the hunters of the tender act upon the car just described. I attach a rod, y, to the lever n, by which the brake may be put in operation upon the car by means of the ordinary brake-Wheel or other device when the car is not attached to the engine, and a spring` is provided to loosen the brake when not in use. causes the friction-Wheel to come away from. the tender-Wheel When the brake is not used.

It will be further seen that by the action of the levers l lthe hunters move in and out with the draw-har without acting upon the friction- Wheels, except Whenthe brake isput in operation from the engine or car, and that the operation of the rods j j, for which chainsnlay be substituted, is such that when the brake is 4 The spring z upon the. tender` -put in operation from any car of atrain it will passed.

I claim- The brake for cars composed of the bunters a ct, h, 7L, m x, the rods b, jj, and y, the friction- Wheels e s, the levers d and m, with the chains thereto attached, the levers l l, the rod k with 1 spring, the rod c with spring z, the lever n, the i slide-QJ, and the Whiffletree q, with the chains thereto attached, said devices or their equivalents combined and adjusted to operate as and for the purposesset forth.

y ANTOINE LANGELLIER.

Witnesses:

CEAS. G. LUND, JOSEPH WELCOME.

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