US582984A - Bicycle-brake - Google Patents

Description

(No Model M. E. DAVIS. BICYCLE BRAKE.

No. 582,984. Patented May 18, 1897.

UNITED STATES MAIILON E.-DAVIS, OF SYOAMORE, OHIO.

BICYCLE-BRAKE.

SPECIFICATION forming part of Letters Patent No. 582,984, dated May 18, 1897.

Application filed July 14,1896- Serial No. 599,137. (No model.)

To all whom it may concern:

Be it known that I, MAHLON E. DAVIS, a citizen of the United States, residing at Sycamore, in the county of W'yandot and State of Ohio, have invented certain new and useful Improvements in' Bicycles; 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.

My invention has relation to bicycles, and the object is to provide a simple and effective brake for the same; and to this end the novelty consists in the construction, combination, and arrangement of the same, as will be hereinafter more fully described, and particularly pointed out in the claim.

In the accompanying drawings the same letters of reference indicate the same parts of the invention.

Figure 1 is a side elevation of my improved bicycle. Fig. 2 is a top plan View on the line x x of Fig. 1, and Fig. 3 is a detail of the brake mechanism.

A A is the frame, and in the hanger B is located the main driving-shaft 0, provided with the usual cranks and pedals. This shaft is provided with a sprocket-wheel D, from which a sprocket-chain E runs to a similar though smaller sprocket-wheel F, mounted on the counter-shaft F, journaled in the hanger G. This counter-shaft F is also provided with a larger sprocket-wheel H and a sprocketchain I, connecting it to the smaller sprocketwheel K on the rear axle L. The shaft Fis further provided with a fly or balance wheel M, against the periphery of which bears a brake-shoe m, pivoted to a connecting-rod N, working in a guide n, secured to the brace 0, connecting the hangers B and G. The for ward end of said rod N is pivoted to a swinging arm I, pivoted to the hanger B, and to the lower end of said swinging arm is 0011- nected one end of a rod R, the other end of which is pivoted to the contiguous end of a lever S, the opposite end of which is hinged to theinclined brace T, connecting the hanger B and the steering-post fork. The brake-rod R and the lever S form a toggle-joint, and by pressingdownward with the foot on the pedal U the arm P is pressed backward, forcing the brake-shoe m with great force against the flywheel and stopping the machine. One end of a curved spring V is secured by a clamp on to the lever S, and its free end presses upwardly on the contiguous end of the rod R and serves to press the hinged joint upwardly and withdraw the brake-shoe when the footpressure is removed from the pedal U.

Although I have specifically described the construction and relative arrangement of the several elements of my invention, I do not desire to be confined to the same, as such changes or modifications 'may be made as clearly fall within the scope of my invention without departing from the spirit thereof.

Having thus fully described my invention, what I claim as new and useful, and desire to secure by Letters Patent of the United States, is-

In a bicycle, the combination with a frame provided with a driving-gear, substantially as described, an arm P pivoted to the hanger of the frame, a brake-rod 72 secured to the frame and through which the brake-rod Works, a shoe pivoted to the brakerod, a rod R pivoted to the arm P with one end, a rod S pivoted to the frame and to the rod R, a pedal pivoted to the rods R and S, and a spring V connected to the rod S and having its free end bearing against the rod R, substantially as set forth.

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

MAHLON E. DAVIS.

\Vitnesses:

L. A. GRUBB, P. R. GRUBB.

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