US616489A - Bicycle-pedal - Google Patents

Description

No.16l6,48 9. Patented Dec. 27, I898.

R. H. RAMSEY.

BICYCLE PEDAL.

(Application filed Dec. 22, 1897.) (No Model.)

WITNESSES:

QQaO/ M UNIT D STATES PATENT OFFICE.

ROBERT H. RAMSEY, OF PHILADELPHIA, PENNSYLVANIA.

BICYCLE-PEDAL.

SPECIFICATION forming part of Letters Patent No. 616,489, dated December 27, 1898. Application filed December 22, 1897 Serial No. 663 ,004. (No model.)

To aZZ whom it may concern:

Be it known that 1, ROBERT H. RAMSEY, a

, citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and usefulImprovement in Bicycle-Pedals, which improvement is fully set forth in the following specification and accompanying drawings.

The invention consists in the combination, in a bicycle-pedal, of a fixed or reversible antifriction-casing provided with depending ears and roughened tread-bolts, foot-rests, or plates, which are screwed or otherwise removably attached to said antifriction-casin g, so as to be easily detached. A horizontal line drawn from the top of one bolt to the top of the other passes below the center of revolution ofsaid antifriction-casing, which can be made reversible, so that the bearings of the antifrictionballs may be changed and the life of the antifriction cones and balls increased.

On reference to the accompanying sheet of drawings, making part ofthis specification, Figure 1 represents a perspective view of a pedal embodying my invention, the same being detached from its crank-arm. Fig. 2 represents a partial side elevation and partial sectional view taken on line 0000, Fig. 1. Fig. 3 represents a detached view of the screw employed to secure the pedal to the crank-arm. Fig. 4 represents a viewdof a portion on line 1 y, Fig. 2. Fig. 5 represents a view ofa portion on line 2 2, Fig. 1. 7

Similar letters of reference indicate corresponding parts in the several views.

A designates a casing, the same consisting of a frame preferably formed with an open front and having upon its interior a half-cone B, which is made either integral with said casing or detachable therefrom, as shown in the present construction, and depending cars a. e

C designates a plate or cap which is adapt-.

through an opening in the back of the easing A. p

In the annular space D, formed by the groove of the half-cones B and D and head E, are the ball-bearingsD p Said head diminishing slightly in thickness from the point of contact with the head of the stud- G on one side and the hub F on the other side toward the periphery leaves spaces between the head and casingthat will obviate any dragging of the disk from lateral motion caused either by wear or loose adjustment.

G designates a stud or similar fastening device which passes through an opening in the .plate 0, and also through'the wheel E and its hub F, and is secured to the crank-arm H, the head of the stud F fitting into the coun= tersunk seat in the wheel E, thus serving to hold the wheel firmly in contact with the crank-arm H.

It will be apparent from the foregoing that by making the stud G separate from the other elements it can be made to fit a great variety of threads of different sizes in the crankarms of the various makes of bicycles now in use and can, by giving the name and date of the bicycle, receive studs G, that will fit any crank-arm, thus overcoming the objections heretofore existing in adapting a device of r the character described to existing bicycles.

It will also be noted that by reason of the employment of the shoulder or extension F of the head E an increasing bearing-surface on the stud G is provided and enables said headto be most firmly secured to the crankarm of'the bicycle.

It will further be noticed that the cone D, carried by the plate 0, is in the front of the pedal and can be entirely removed 01' adjusted without displacing-the pedal from the crankalike; but when the casing A is reversedthat is, when preferred, facing its plates or caps from within to witl1out--the balls as sume a new rolling and change their hearing IOO and wearing, which prolongs the life of said casing. It will be observed that the cone D of the plate or cap 0 can be removed or'adjusted Without displacing the pedal from the crank-arm.

P designates a device employed forlockin g the cone D of the plate 0, the same consisting of a plate secured to the casing A and the same having a stud or projection P,Which is adapted to enter any of the openings H in the plate 0, said openings being engaged by a spanner or other wrench,whereby said plate may be rotated and the cone D thereon adjusted.

J designates a locking device or stud which passes through the casing A and is adapted to force the plug K, of suitable material, against the threads of the plate 0, thereby preventing the same from improper rotation.

each tread can be reduced at L to provide a smooth bearing for a toe-clip. Said foot-rests M project from and are screwed into or otherwise mounted within the ears a of the casing A, so that when the roughness at the top is worn away by use the screw and jam-nut N can be loosened, the Worn part turned underneath,and the unused or bottom spikes turned uppermost. A connecting-guard Q joins and braces the foot-rests M at their outer ends, and screwing into or fixing them to the easing A, in connection with the jam-nuts N, the tread can be lengthened for any sole width.

I claim- A bicycle-pedal consisting of an antifriction-ball casing provided with depending ears, means for securing said antifriction-ball casing to the bicycle crank-arm, threaded footrests mounted in said ears, and a link at the opposite ends of said foot-rests to hold them together.

ROBERT H. RAMSEY.

Witnesses:

JOHN A. WIEDERSHE-IM, WM. 0. WIEDERSHEIM.

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