US554419A

US554419A - Edward spencer hall

Info

Publication number: US554419A
Authority: US
Publication date: 1896-02-11
Anticipated expiration: 1913-02-11

Description

UNITED STATES PATENT OFFICE.

EDWARD SPENCER HALL, OF'NEW YORK, N. Y.

BRAKE FOR BICYCLES.

SPECIFICATION forming part of Letters Patent No. 554,419, dated February 11 1896. Application filed June 25, 1895. Serial No. 55 8,973. (No model.)

To aZZ whom it may concern: I

Be it known that I, EDWARD SPENcEn HALL, of the city, county, and State of New York, have invented a new and useful Improvement in Brakes for Bicycles, of which the following is a full description.

The accompanying drawings illustrate the invention, of which- Figure 1 is a plan View of the brake applied to an axle; Fig. 2, an end section taken on line 00 00, Fig. 1; and Fig. 3 a detail view of part of band-brake and sustaining-bar.

This invention is an improvement upon the band-brake for which I have an application in the Patent Office, bearing the SerialNo. 524,966, and which was allowed on the 21st day of February, 1895. I have discovered that the methodas illustrated by the drawings in that application of securing the end of the band-brake therein shown would tend to direct the pull of the brake upon one side of the ball-bearings of the journals and hence induce more wear on that side. I therefore have invented an independent device to which that end of the band-brake is attached, and while it diminishes this pressure upon one side of the ball-bearings it also furnishes a wider bearing-surface upon the axle and aids in applying the brake.

In the drawings, 11 is the crank-shaft upon which the band-brake is wound.

I is the band-brake coiled upon the axle, which consists of a coil or cord, wire, or band made of suitable material, and if of metal may be properly tempered to give it sufficient spring to return it to normal when released. The brake should be so wound upon the shaft that when drawn in contact therewith the is attached to an independent bar or rod A. For convenience I have provided this end of the band with the shoulders t" d and one end of the bar A with a slot a to pass behind the shoulder and hold that end of the band. It may be attached by any other method, if desired. The other end of the independent bar passes through an opening or slot in the tube and need not be otherwise secured or fastened. For convenience I have also scooped out the bar, as shown at a to conform in shape to the axle and give a good bearing-surhaving one of its ends connected with the actuating devices of the brake, and an independent bar having one of its ends attached to the opposite end of the band, and its other end passed through a slot in the tube inclosing the axle, and adapted to contact with the axle at a point between the end attached to the brake and the slot in the tube.

2. In a brake for a bicycle an axle inclosed within a tube, in combination with a bandbrake coiled upon the axle within the tube, having one of its ends connected with the actuating devices of the brake and its other end attached to the extremity of an independent bar, the latter scooped out to conform to the shape of the axle, and means for holding the free end of the independent bar substantially as described.

Signed at New York, in the county of New York and State of New York, this 22d day of June, A. DQ1895.

E. SPENCER HALL. Witnesses:

R. P. HEss, A. MITCHELL HALL.