US467896A - peckham - Google Patents

Description

(No Model.) 2 Sheets-Sheen 1.

E. PEOKHAM.

GAR BRAKE No. 467,896. Patented Jan. 26, 1892.

(No Model.) 2 Sheets-Sheet 2. E. PEGKHAM.

GAR BRAKE No. 467,896. Patented Jan. 26, 1892.

INVENTOR: Z7 M WMZW 42 ATTORNEYS.

WITNESSES:

S E W.

UNITED STATES PATENT OFFICE.

EDGAR PECKHAM, OE KINGSTON, NEIV YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE PECKHAM MOTOR TRUCK AND WHEEL COMPANY, OF SAME PLACE.

CAR-BRAKE.

SPECIFICATION forming part of Letters Patent No. 467,896, dated January 26, 1892.

Application filed October 30, 1890- Serial No. 369,789. (No model.)

To tZZZ whom it may concern:

Be it known that I, EDGAR PECKHAM, of Kingston, in the county of Ulster, in the State of New York, have invented new and useful Improvemen ts in Car-Brakes, of which the following, taken in connection with the ac companying drawings, is a full, clear, and exact description.

This invention consists, chiefly, in a novel, simple, and effective system of levers for applying the brake to the track, as hereinafter fully described, and specifically set forth in the claims.

In the annexed drawings, Figure l is a side elevation of a car-truck equipped with my improved brake. Fig. 2 is a top plan View of the same, and Fig. 3 is an enlarged vertical longitudinal section on line y y, Fig. 2.

Similar letters of reference indicate corresponding parts.

A and A represent the usual longitudinal side and truss bars of the truck-frame, which bars are generally attached to yokes b b, hung on the journal-boxes c c of the car-axles C C.

a a represent the brake-shoes, which are arranged to bear on the track-rails, as shown in Figs. 1 and 2 of the drawings. For operating said brake-shoes I employ on each side of the truck a two-armed lever or rock-arms (Z (Z, attached rigidly to a rock-shaft e, which is extended across the truck and is mounted in suitable bearings e, secured to the trussbars A A. The rock-arms d d extend downward, and to the free end of each is connected one of the brake-shoes a The brake-shoes are held normally out of frictional contact with the track by means of suitable springs g g, connecting the rock-arms to the truckframe. To the shaft (21 also rigidly secure crank-arms h h, the free ends of which are connected by rods Z Z to the levers Z Z, which are pivoted vertically to the truck-frame at the front and rear of the rock-shaft c and have their upper ends connected to the rods 2, which are extended to theends of the car and connected thereat to the brake-levers or brake-wheel shafts in the usual and wellknown manner not necessary to be shown.

My described car-brake possesses several advantages, among which may be named the employment of two brakeshoes on each side of the truck and operated by one and the same rock-shaft and in such a manner that only one of said brake-shoes can at a time be applied to the track, and it always applies the shoe which is nearest the rear end of the car and drags said shoe on the track, thereby avoiding the danger of the shoe becoming upset by catching on obstructions on the track; also, greater power for applying the brake is obtained by the employment of the levers Z, which are connected near their fulcrums to the cranks of the rock-shaft.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with a car-truck, of the rock-shaft 6, provided with the cranks h 71, the levers Z Z, pivoted to the truck, rods Z Z, connecting said levers to the cranks, rocka-rms attached to the shaft (2, and separate brake-shoes attached to the respective rockarms, as set forth.

2. The combination, with the car-truck, of the rock-shaft e, rock-arms d (1, extending in opposite directions and downward from said rock-shaft, separate drag-shoes a a, attached to the free ends of the rock-arms, cranks attached to the rock-shaft, and brake-levers connected to said cranks, as set forth.

In testimony whereof I have hereunto signed my name this 10th day of October, 1890.

EDGAR PECKHAM. [L. s] lVitnesses:

WILLIAM SUTPHEN, J. H. BURTON.

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