US643231A - Bicycle-brake. - Google Patents

Description

No. 643,231. Patented Feb. is, 1900.

P. J. PARMiTERE BICYCLE BRAKE.

(N o Model.)

m: uonms prrzns co.. mom-U00" WASHING'FON, n. c

NITED Snares AIET rrrcni PHILIP JOSEPH PARMITER, OF ANSTY, ENGLAND.

BICYCLE-BRAKE,

SPECIFICATION forming part of Letters Patent No. 643,231, dated February 13, 1900..

Application filed May 29, 1899- disclosed in the following description and,

claims.

Referring to the said drawings, Figure 1 is a view of a portionof a bicycle, showingthe preferred form of my invention applied thereto. Fig. 2 is a front'elevation of the same,

partly in section.

According to myinvention I employ abrake frame or spoon in the form of a segment of a cylinder carrying a flexible endless frictionband of greater length than the spoon, said spoon and band being adapted to be pressed into engagement with the tire of the wheel, whereby the endless band will be caused to revolve and the friction between the inner surface of the band and the outer face of the spoon will cause the Wheel to be retarded without wear upon the tire.

In the drawings, n represents the frame of the bicycle, and A the rear wheel thereof.

1) represents the brake frame or spoon, and e represents the endless friction-band. The brake frame or spoon b is secured to the lower end of a vertical brake-lever f, having a footrest at its upper end. The endless band is prevented from accidentally disengaging the frame or spoon b by a guiding or retaining flange b on one side and the brake-leverf on the other side, the portion b of which adjacent to the spoon forms a similar retaining or guiding flange. The leverfis pivoted by a stud h to a clip 7b, which is constructed to detachably engage one of the bars of the cycleframe, said clip-71 extending around the bar and being provided with a set-screw i.

j represents-a stop-plate adapted to be inserted between the frame-bar and the screwt' and provided with a lateral projection or stop to limit the movement of the said lever f in a Serial No. 718,765 (No model.)

direction to move the spoon b away from the wheel A. The platejcan be adjusted to the desired position and clamped by the screw 2', which also securesthe clip h to the bar.

The position of the brake-lever f is such that a downward pressure thereon will not apply the brake, but will allow the rider to rest his feet upon itor to use it as a step to dismount, if desired. To apply the brake, the rider will place his foot on the upper end of the lever f and press it forward, thereby moving the spoon l) and the endless band rearwardly into engagement with the wheel. It will be observed that the band 8 runs free from contact with the spoon for nearlyhalf of its length, so that the band cannot bind or stick in revolving, asit would be apt to do if it were placed around a cylindrical support. In this construction the band must always move freely and easily under the spoon; It

will also be seen that as the lever f is only connected to the spoon at one side the band e can be removed and replaced or renewed without disturbing any other part of the brake.

What- I claim, and desire to secure by Letters Patent, is-

1. A wheel-brake comprising among its members a curved spoon, having a short convex band-engaging surface, an endless band of greater length than said band-engaging surface of the spoon, and havingi'only a portion of its inner surface engaging said spoon, the remaining portion being entirely out of contact with said spoon, lateral guides on said spoon to prevent the accidental displacement of said band, a vertically-disposed lever having'one end rigidly secured to said spoon at one side of the same and its other end provided with a foot-engaging portion, and a stop for engaging said lever when the latter is moved in a direction to move the spoon and band away from the wheel; whereby said lever maybe used as a step and footrest and whereby the band can be removed from the spoon and replaced Without moving said lever, substantially as described.

2. A wheel-brake comprising among its members an endless friction band, a curved spoon of less extent than the said band, engaging a portion of the inner surface of said band, and provided with lateral guides for said band, the portion of said band not in in a direction to move said spoon away from Contact with said spoon being entirely free, a the Wheel, substantially as described. vertically-disposed lever secured at its lower i i end to said spoon, a clip pivotally connected PHILIP JOSEPH I ARMITER' 5 to said lever and an adj nstable plate adapted Witnesses:

to be inserted in said clip, provided With a GEO. H. DAVIS, stop for limiting the movement of said lever i JACK ROBERT YELP.

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