US437676A

US437676A - Brake-shoe

Info

Publication number: US437676A
Authority: US
Publication date: 1890-10-07
Anticipated expiration: 1907-10-07

Description

L. CARL.

BRAKE SHOE.

(No Model.)

No. 437,676. Patented Oct. '7, 1890.

In!) enlolf 5 7 UNITED STATES PATENT OFFICE.

LEIVIS CARL, OF MOUNT CARMEL, PENNSYLVANIA.

BRAKE-SHOE.

SPECIFICATION forming part of Letters Patent No. 437,676, dated October *7, 1890. Application filed March 15, 1890- Serial No. 344,045. (No model.)

To all whom it may concern:

Be it known that I, LEWIS CARL, a citizen of the United States, residing at Mount Carmel, in the county of Northumberland and State of Pennsylvania, have invented certain new and useful Improvements in Brake-Shoes; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

The special object of the invention is to connect a brake-shoe and its head, so that they may be securely held together and yet easily detached from one another. The means by which I accomplish this, and which constitute my invention, will first be described in connection with the drawings.

Figure 1 of the drawings is an elevation in perspective showing the brake-shoe and its holder fastened together. Fig. 2 is a detail sectional view of the bottom of the brake head and shoe; and Fig. 3, a top view, in perspective, of the shoe alone.

In the drawings, A represents the brakehead, and B its shoe. On the under side of the head A, I make the dovetailed groove a, to receive the corresponding tenon b on the shoe, and across the groove a make a rectangular groove a. In the latter a still deeper countersink a is made to receive the nut or head of the belt which fastens the shoe to the head, and another cavity by which I form the shoulder a against which catches the free end of the rear pivoted detent b on the shoe. As the head A is slid on the dovetail tenon b it presses the detent Z) down on a spring 19 but as soon as the shoulder a has passed the end of the detent the said spring lifts it until its end bears against the shoulder, when the shoe and head are securely looked together. Then it is desired to separate them, a knifeblade or equivalent is slipped in above the detent, which is then held down until the head is removed.

Having thus described all that is necessary to a full understanding of my invention, what I claim as new, and desire to protect by Letters Patent, is

The brake-head A, having the dovetailed groove to, cross-groove a, and shoulder a in combination with a shoe B, having the dovetail tenon b, pivoted detent b, and spring b under the detent, as and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

LEWIS CARL.

\Vitnesses:

E. E. WHITE, VARIS AUSTEN.