US328959A - John meissneb - Google Patents

Description

(No Model.)

J. MEISVSNER.

OAR BRAKE.

Patented 0011.27, 1885.

WITNESSES 1 iTE Starts ATENT 'rric r.

JOHN MinssNER, on NEW YORK, N.

Y., ASSIGNOR TO HIMSELF, REQUIA FLEISOHMAN, ISAAC KAYSER, PHILIP L. SONDHEIM, LOUIS STEOKLER, AND JOHN o. STANTON, Ja, ALL or SAME PLACE.

CAR-BRAKE.

SPECIFICATION forming part of Letters Patent No. 328,959, dated October 27, 1885.

Application filed November 25, 1884. Serial No. 148,805.

To all whom itmay concern.-

Be it known that I, JOHN MEIssNER, of the city county, and State of New York, haveinvented a certain new and useful Improvement 5 in OarBrakes, of which I declare the following to be a full, clear, and exact description, so that any one skilled in the art to which it appertains may make, construct, and use the same, reference being had tothe accompanying 1o drawings, which form part of this specification, and to the letters and figures of reference thereon.

My invention relates to improvements in car-brakes, and has for its object to provide brakes simple in construction and capable of being easily and effectively applied.

Figure 1 is a sectional side view with part of the truck frame and supports removed. Fig. 2 is a top View of a truck, and Fig. 3 an end view.

Like letters refer to corresponding parts in the different figures.

The cross-pieces H H h it constitute the movable brake-frame. To this are fastened 2 5 brake-rods S, each of which carries at its ends the brake-shoes M M. These brake-shoes are curved to conform somewhat to the periphery of the wheel, and may, as shown in the drawings, be detachably secured to thebrakerod,

0 to enable them to be replaced when worn out. I prefer to make these shoes of metal. They may,however,be made of anysuitable material.

Secured to the truck-frame is a bent rod, L, around which are fastened two bearings, N N,

3 5 through which, and immediately beneath the rod L, passes the brake-rod S. The bearings N N allow this brake-rod S to move longitudinally along and under the rod L; but they and the rod L prevent it from moving vertically or laterally.

The lever B is fastened to the shaft of the brake-wheel A and turns with it, and at its other end is pivoted to the rod 0, which is in turn pivoted at its other end to the lever D.

-This lever is pivoted to the truck-frame at d. Near its center one end of the arm E is pivoted, the other end being pivoted to the movable frame H.

shoe M touches the (No model.)

The operation ofmy device is as follows: If the car is moving in the direction indicated by the arrow 00, Fig. 1, the brake-wheel is turned in the direction of the arrow 3 as shown in Fig. 2, taking with itthe lever B, and transmitting the forward motion through 0, D, and E to the movable brake-frame. The latter carries forward with it the brake-rod S and the brakeshoes, thereby pressing the brake shoes M against the wheel. The moment the brakemoving wheel, which is revolving in the direction indicated by the arrow 2, Fig. 1, the upward and forward motion of the periphery of the wheel tends to carry the brake-shoe M along with. it, and thereby wedges the brake-shoe M and the brake-rod S between the wheel and the rod L. It is evident thatthe force with which this wedging is done will vary with the varying velocity of revolution of the wheel. The more rapid the revolutions the greater will be the wedging force and the more effective will the brakes become. As this does not depend upon the force exerted at the brake-wheel A. very little power is needed in applying the brakes, my device utilizing the speed and momentum of the car to stop the car. If the car is movingin the contrary direction, the brakewheel is turned in the reverse direction to that indicated by the arrow y. In this case the brake-shoes M are used. i

My device does not jar or interfere with the easy riding of the car, because of the firm grasp and uniform operation of the brakes, and because it admits of the insertion in the line of load of the ordinary or any car springs.

The movable brake-frame imparts motion to all the brake-rods of the truck simultaneously. The bar 2' carries this motion to the other truck of the car, the bar K connecting with a similar bar from another car, and so on from car to car, allows the brakes throughout an entire train to be operated and controlled from the engine. A short steam-cylinder and pistonrod could thus be made to operate all the brakes in a train.

The form of the movable brake-frame and the means of imparting longitudinal motion thereto might be varied, if desired, without departing from the spirit of my invention, and the brake-rod S might be dispensed with, each brake-shoe being directly connected with the movable brake-frame, in which case it would be necessary for a fixed 'part of or projection from the truck to lie or project over each brake-shoe, between which and the wheel the brake-shoe could be wedged, as before; described.

My invention furnishes a simple, cheap, and effective brake, which can be easily applied, and which does not interfere with the easy riding of the car.

What I claim as new, and desiretosecure by Letters Patent, is-

1. The combination, with a truck, of a movable brake-frame, brake-shoes, and a fixed part of or projection from said truck lying over said brake-shoes, whereby the brakeshoes may be wedged between the wheel and the fixed part of or projection from the truck lying over the brake-shoes, substantially as and for the purposes set forth.

2. The combination, with a truck, of a movable brake-frame, brake-shoes, and connecting brake-rod, all so arranged that the brakeshoes and connecting brake-rod may be wedged between thewheel and a fixed part of or projection from the truck, substantially as and for the purposes set forth.

3. In acar-brake the combination of a movable brake-frame, brake-shoes M M, brakerod S, rod L, and bearings N N, substantially as shown and described.

4. In a car-brake, the combination of a movable brake-frame, lever B, arm 0, lever D, arm E, rod L, bearings N N, brake-rod S, and brake-shoes M M, substantially as and for the purposes set forth. 7

5. The combination, with amovable brakeframe, brake-shoes M M, connected by brakerod S, rod L, and bearings N N, of arms K and z, substantially as and for the purposes set forth.

6. The combination, in a car-brake, of a movable brake-frame, lever B, arm 0, lever D, arm E, brake-shoesMM, brake-rod S, rod L, bearings N, and rods K and i, substantially as and for the purposes set forth.

JOHN MEISSNER.

Witnesses:

LoUis STEOKLER, BERNHARD EYBEL.

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