US442345A - worms - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

E. WORMS 8a A. S. ZWIERZOHOWSKI.

VELOGIPEDE.

No. 442,345. Patented Dec. 9, 1890.

(No Model.) 2 SheetS-Sheet 2.

E. WORMS 8a A. S. ZWIERZCHOWSKI.

VELOGIPEDE.

No. 442,345. Patented Deo. .9, 1890.

Nrrnn Marne Patent Frien- EGNE 'ORMS AND ALEXANDRE SGISMOND ZWIERZCIIOVSKI, OF PARIS, FRANCE.

VELOCIPEDE.

SPECIFICATION forming part of Letters Yatent No.

442,345, dated. December 9, 1890.

Application fiied September 29, 1890. serial Np. 388,448. (Np model.) rama in rmnpe August 4,1890, m1 'm England Anais* 12,1890,Np.12,18.

To (tli whom it may concern:

Be it known that we, EU GNE WORMS and ALEXANDRE SIGIsMoND Zwrnnzoriowskr, both citizens of the French Republic, and residents of Paris, France, have jointly invented certain Improvements in Driving-Gear for Tricycles and other Velocipedes, (for which patents have been granted in France, dated August 4z,1890, and in England, No. 12,618, dated August 12, 1890,) of which the following is a specification.

Our invention relates to that class of velocipedes in which rotary motion is imparted to the driving-wheels through the medium of treadles; and it has for its object a multiplyimg-gear in connection with the treadles, and to give to the pedals on the treadles a movenient in a path having,` the form of a long ovoidal curve, said movement approximating to that of the foot in walking.

Our invention will be fully described hereinafter, and its novel features carefully defined in the claims.

In the accompanyin` drawings, we have shown our improvements embodied in a tricycle, of which- Figure 1 is a side elevation with the near driVing-wheel removed, and Fig. 2 is a plan.

V represents the usual frame-work of such a vehicle XV, the steering-wheel; Y, the steering-handle, and Z the dri\"ing-wheels fixed on the axle O. The axle may have ball-bearings in the frame at P.

On the axle O is fixed a toothed pinion A, which gears with a driving spur-wheel B 011 a Crank-shaft X, mounted in the frame V of the vehicle. There are two crank-pins a, one on the wheel 1-3 and the other on a crank b 011 the opposite end of the shaft X. The cranks are or may be set at right angles on the shaft, and to each is coupled a treadle'drivin; mechanism. As these meohanisms are alike, and the same reference-letters are used in both, it will only be necessary to minutely describe one. Premising, however, that to avoid conf nsion only one of these machnanisms is shown in Fig. 1, it being represented in full lines in one position and in dottedlines in another position.

and O' the pedal thereon The treadle is coupled to the crank-pin a, and is suspended from a rocking lever D by two links E and F, which are coupled at their upper ends to the lever D on opposite sides of its fnlcrum c. This fulcruin is on a part of the framework directly over the axle O, by preference. Then the treadles are operated by the feet of the rider, the lever D rocks on its fulcrum. The rear end of the treadle, being coupled to the crankpin, moves in a circular path, and the pedal C' moves in a long` ovoidal path, indicated in Fg. 1 by the dotted line z. This gives to the foot of the rider a inovement closely approximating to that of walking, thus departing on the one hand from the circular movement of the Crank, and on the other hand from the npand-down moveinent of the ordinary treadle.

The treadle maybe furnished with any kind of rocking pedal C', or the foot may rest directly on the treadle C itself.

By our construction of suspended treadles coupled directly to the cranks we obtain all the advantages of a .inultiplying-gear without the chains and sprocket-wheels. Te also obtain all the advantages due to the treadle motion, and in addition thereto a pedal movement similar to that of the foot in walking.

`he velocipede may be driven with one crank and suspended treadle; but for reasons fainiliar to those skilled in the art we prefer to employ two, as in all Vehicles of this character.

So far as concerns the suspended swinging treadle coupled directly to the crank onV the crankshaft it is mmaterial what kind of gearin; is cmployed to connect the crankshaft with the axle. Any known form of gearing may be employed. le prefer, however, to employ ordinary toothed gearing, as described.

The link E is bent, as shown in the drawinne, merely to avoid the axle.

llaving' thus described our invention, we claim- 1. In avelocipede, the combinatiomwith lthe crank to be rotated, of the treadle coupled to said crank, the rocking` lever, and the links C is the treadle, to receive the foot.

which eouple said lever 011 opposite sides of links E F, which connect the treadles, respect its `fuiei'um to the said ti'eadle and suspend the ively, with the roeking levei's, substantially same, Whereby the peda end of said treadle as set forth.

is caused to move in an ovoidal path when the In witness whei'eof We have hereunto signed 15 5 Crank is rotated, substantially as set forth. our names in the presence of two subseribing 2. In a Velocipede, the combination,with the Witnesses. axle O, having on it the driving-wheels and the EUGENE WORMS. pi nion A,0f the crank-shaft X, the spur-wheel ALEXANDRE SIGISDIOND ZWIERZCIIOWSKI. B thereon, gearing With the pinion A, the Witnesses: ro ti'eadles O, eoupled to the respective emnks R. J. PRESTON,

on shaft X, the i'ocking levei's D, and the MIOHEL COQUART.

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