US689902A

US689902A - Vehicle-brake.

Info

Publication number: US689902A
Application number: US7959301A
Authority: US
Inventors: John Mckeen
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-10-22
Filing date: 1901-10-22
Publication date: 1901-12-31
Anticipated expiration: 1918-12-31

Description

(no Modal.

Patented Dec. 3|, I901. J. MBKEEN.

VEHICLE BRAKE,

(Application filed. Oct. 22, 1901.)

. '"i'ii?llllllllllllllllllllll llrTTTnn STATES ATnT FFICE.

JOHN MCKEEN, OF ARMSTRONGS MILLS, OHIO.

VEHICLE-BRAKE.

SPECIFICATION forming part of Letters Fatent N 0. 689,902, dated December 31, 1901 Application filed October 22,1901. Serial No. 79,593. (No model.)

1'0 (l/ZZ whom, it may concern:

Beitknown that I, JOHNMOKEEN, a citizen of the United States, residing at Armstrongs Mills, in the county of Belmont and State of Ohio, have invented certain new and useful Improvements in Vehicle-l3rakes; 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.

This invention relates to new and useful improvements in vehicle-brakes; and it consists in the provision of means whereby the parts are so constructed and arranged that rattling of the brake will be prevented, the shoes being self-adjusting and adapted to be i positioned to fit vehicles of different widths.

More specifically, the invention resides in the provision of a brake having shafts, with thread-bearings with hangers, means being provided to take up wear.

The invention will be hereinafter more fully described, and then specifically defined in the appended claim and illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part of this application, and in which drawings- Figure 1 is a bottom plan view of a truckframe to which my improved brake is attached. Fig. 2 is a central longitudinal sectional view through the shaft carrying the brake-shoes. Fig. 3 is a cross-sectional view through one of the shoes and shaft carrying same, and Fig. 4 is a central longitudinal sectional view through the shaft to which the foot-lever is attached.

Reference now being had to the details of the drawings by letter, A designates the frame of the truck, to which the brake mechanism is attached. On the under side of said frame are secured the hangers B and B, the bearing-apertures in which are threaded to receive the threaded ends of the shaft 0. Projecting from the shaft is an arm D, forming a foot-lever, which projects above the truck, while another arm E projects from the shaft in the opposite direction and is apertured at its end to receive a bolt f, which is held in the ends of the arms of the bifurcated rod F. At the other end of the truck from that to which the hangers B and B are attached are the hangers H and H, the apertures in which are interiorly threaded a portion of their length to receive an adjusting set-screw G, on the outer threaded circumference of which is mounted a jam-nut G. The walls of the apertures in the hangers H and H are conical-shaped near the inner ends of-the apertures, adapted to conform to the conical ends M of the shaft M. Interposed between the inner end of said set-screw and one end M of the shaft is a packing P, preferably of leather, and by turning the set-screw said packing may be forced against the end of the shaft M to take up any wear. Right-angled arms Q project from the shaft M near its pivotal portions, and each arm near its end has a threaded portion J, and a recess J is out longitudinally into said threads to receive the end of a set-screw R, which is mounted in a threaded aperture in the frame of the shoe. Said shoe-frame has a second threaded aperture at right angles to the aperture carrying the set-screw and adapted to fit over the threads J. When the set-screw is adjusted in place in the shoe-frame, the shoe and frame will have a slight rotary movement 011 the arm Q, limited by the end of the set-screw contacting with the opposite edges of the recess J. This slight movement of the shoe allows the latter to adjust itself to the tire of the wheel when forced against same. Projecting from the shaft M is an arm T, the end of which is apertured to receive a bolt 0, mounted in the ends of the rod F.

From the foregoing, when taken in connection with the drawings, it will be observed that as the bearing portions are threaded'at one end of the truck, also the shoes at their connections with the shaft carrying same, rattling of the parts will be effectually prevented, wear may be taken up on the shoe carrying shaft, and the shoes may be adjusted to fit narrow or wide wagons, and having a slight play will conform to the circumference of a wheel when forced against same.

Having thus described my invention, what I claim to be new, and desire to secure by Let ters Patent, is

in a recess in the threaded portion of the shaft, the counter-shaft 0 having screwthreaded bearings and pivotal link connec tion with said shaft M, as set forth.

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

. JOHN MCKEEN.

Witnesses:

A. J. LINDSEY, E. L. HEss.