US569636A

US569636A - goettel

Info

Publication number: US569636A
Authority: US
Publication date: 1896-10-20
Anticipated expiration: 1913-10-20

Description

2 SheetsSheet 1. J. GOETTEL. BICYGLE.

(No M6681.

No. 569,636. Patented Oct. 20, 1896.

2 Sinatra-Sheet 2.

(No Model.)

J. GOETTEL.

BICYCLE.

No. 569,636. Patented Oct. 20, 1896.

, m t v w & r M X UNITED STATES PATENT OEFicE.

JOHN GOETTEL, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO E. BERTRAM NEVTON, OF SAME PLACE.

BICYCLE.

SPECIFICATION forming part of Letters Patent No. 569,636, dated October 20, 1896.

Application filed March 21,1896.

To all whom it may concern:

Be it known that I, JOHN GOETTEL, residing in Boston, county of Suffolk, and State of ldassachusetts, have invented an Improvement in Bicycles, of which the following description, in connection with the accompanyi'ng drawings, is a specification, like letters on the drawings representing like parts.

This invention relates to bicycles, and has for its object to improve the construction of the same in a manner as will be described.

In accordance with this invention the pedalshaft has fast on it a driving-wheel of a construction as will be described, and the said dri ving-wheel cooperates, as will be described, with a counter-shaft provided with a sprocketwheel. and connected by a link chain to a sprocket-wheel on the rear wheel of the bicycle. In order that the link chain may be made of increased length, the hanger for the sprocket-shaft is located above the hanger for the pedal-shaft and is connected thereto, and the hanger for the pedal-shaft is also connected by substantially short brace-bars with the rearwardly-extended wheel-supporting bars of the framework, as will be more specifically described.

Figure 1 represents in side elevation a safety-bicycle embodying this invention Fig. 2, a detail,'on an enlarged scale, of my improved driving mechanism; Fig. 3, a transverse section on the lineA A, Fig. 2; and Figs. 4 and 5, details to be referred to.

Referring to Fig. 1, A represents the front wheel, and A the rear wheel, of a safety-bicycle having a framework A which in its general construction approximates the framework commonly employed in safety-bicycles, but difiers therefrom in providing between the wheels A A two hangers, one for the pedal-shaft a and the other for a sprocketwheel or counter shaft 0. the hanger for the sprocket-wheel shaft being located above and in a substantially straight line with the saddle-supporting post or tube a The hanger for the sprocket-wheel shaft a has connected to it the rearwardly-extended brace rods or tubes 0;, and the latter are, in accordance with this invention, connected by shortbrace-rods 0. to the hanger for the pedalshaft a. By this construction and arrangefierial No. 584,339. (No model.)

ment the link chain a may be made substan tially as long as that now commonly employed in the ordinary frame of safety-bicycle and better results are obtained than if the hanger for the sprocket-wheel shaft were located in a horizontal line or behind the hanger for the pedal-shaft. The pedal-shaft a, in accordance with this invention, extends through the. hub b of a driving-wheel of a construction as will now be described, which driving-wheel consists, essentially, of a circular plate or disk I), provided with an annular rim b and I on its inner side near its circumference the said plate or disk is provided with a series of projections 19 (shown best in Fig. 4,) each of the said projections being provided on its front face with an annular socket and with a centering stem or teat b projecting from the socket, beyond the outer edge of the same, as clearly shown in Fig. 4. The annular socket in the face of the projection 19 is adapted to receive the end of the ball I), provided with a cavity or recess 1) for the reception of the projecting teat h, which latter is made annular in form, so that the ball 12 may turn thereon as a center and at the same time turn in the annular groove or socket of the projection 11 The ball Z2 is provided at its opposite end with a recess 11 similar to b, for the reception of a projecting teat or stem b extended from the center of the cup-shaped socket in a projection b on a ring 72 which is detachably secured to the rim b of the plate or disk I) by suitable bolts h The rim b is provided with an annular channel or groove into which the rim h fits, so that a flange c on the rim projects over the ring I), and a plate 0' may be secured to the framework of the machine and close the wheel and render it sub stantially dust-proof.

By reference to Figs. 3 and 4 it will be seen that the studs or teats b I) act as centering studs or teats, and the annular sockets in the projections 17 h fit over and embrace the ends of the balls 11 so that the latter are firmly held against dislodgment, and if for any reason the centering-teats b b should become broken the balls 5 would still be retained in their cup-shaped sockets and prevented from dropping out of place, which would render the driving mechanism substantially useless.

The halls b have cooperating with them a pinion 0 provided with rounded teeth 0' and concavities 0 which engage the balls Z). The pinion c is rendered fast on the counter-shaft c in any suitable or desired manner, as by the screw 0 and the said shaft has fast on it the sprocket-wheel 0 which may be of any suitable or usual construction, about which is passed the link chain a, which connects the sprocket-wheel c with the sprocket-wheel on the shaft of the rear wheel A. The disk wheel I) may have secured to or forming part of it one of the pedal-arms c as shown in Figs. 2 and 3. In practice the projections Z2 with their cup-shaped sockets and teats I)", may be forged or cast in one piece with the disk Z), and the latter may be made thin to insure lightness. So, also, the projections I), having the cup-shaped sockets, may be made of one piece with the ring I).

I claim In a safety-bicycle, the combination with a pedal-shaft having hearings in the framework between the front and rear wheels of the said bicycle, a driving-wheel fast on the pedal-shaft consisting of the disk Z) provided with an annular rim and on its inner face with projections 11 having in their faces ball receiving sockets provided with projecting teats b, a ring 11 secured to said disk and provided with projections having ball-receivin g sockets provided with projecting teats balls interposed between said disks and extended into the sockets of the said projections to be embraced by the same and provided at their opposite ends with socket-s into which extend the projecting teats b (2 and on which the said balls turn, a counter-shaft supported by the framework and extended into the drivingwheel, a pinion fast on the counter-shaft within the driving-wheel and meshing with the said balls, asprocket-wheel fast on the counter-shaft, a sprocket-wheel fast on the rear wheel of the bicycle and a link chain connecting said sprocket-wheels, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN GOETTEL.

Witnesses:

JAs. I-I. CHURCHILL, J. MURPHY.