US342934A - schulze - Google Patents

Description

(No Model.) 2 Sheets-Sheet. 2.

J.H.SOHULZE.

v VELOGIPEDB. No. 342,934. Patented June 1, 1886.

S Zr 7 z 8 7 Z 7f )JW 4 M By WM ATTORNEY N. PETERS. Phato-Lillwgraphar. Wmhi c NITED' STATES PATENT OFFICE.

JOHANN HEINRICH SOHULZE, OF BERLIN, GERMANY.

VELOCIPEDE.

SPECIFICATION forming part of Letters Patent No. 342,934, dated June I 1886.

Application filed May 1, 1885. Serial No. 164,093. (No model.) Patented in England April 23, 1885, No. 5,021.

To all whom it may concern:

Be it known that I, J OHANN HEINRICH SoHULzE, a subject of the King of Prussia, residing at Berlin, in the Kingdom of Prussia, in Germany, have invented certain new and useful Improvements in Velocipedes; and I do hereby 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 it, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specifica- 'tion.

A serious disadvantage in all the systems of velocipedes heretofore used consists in their not attaining on uneven ground the velocity required of them, and therefore not being serviceable for practical use whenever speed is the main point, for war purposes, oonvey ance of the post, &c. By means of the present construction the inventor endeavors to remove these deficiencies, and the present construction is based on the principle of introducing a fly-wheel, the purpose of which is similar to that of fly-wheels in locomotives and steam-engines.

In the accompanying drawings, Figure 1 represents a side view of a velocipede con structed after the present system. Fig. 2 is a view from above of Fig. 2. Fig. 3 is a sec tion on line I II through Fig. 1. Fig. 4 is a section on line III IV through Fig. 2.

Similar letters refer to similar parts th roughout the several views.

Two-wheel axles with wheels of equal diameter running loose on them are connected by means of two stays,a a, which allow the axles sufficient play both backward and forward and keep them parallel with each other, so as to form asliding frame. Within the frame thus formed supports I) b and c c projectnpward from each end of the shafts a a, and with the stays a each forms a triangular carriage. The two supports I) and b are held together by a strong cross-connection, (I, which allows the supports a certain backward and forward motion. From this cross-connection two arms, 6 6, rise slanting, and in the upper ends of these arms on the one side and in the connecting-point of supports I) and c on the other side a crankaxle, f, is bedded in each, and carries each on its extreme end a fly-wheel, 9. On each side of the velocipede the fly-wheel g and the two carriagewheels h and t are connected on equally long crank-arms by means of crankpins 8 s s,- and by the three connecting-rods k is k, which are in the shapeof a triangle, and thus form a crank-triangle together. On the wheel-axles are springs l, and on them rests the carriage-body itself, which can, according to requirement, be of different shapes. For instance, in Fig. 1 0 represents the drivers seat, m and n being two raised casings arranged, respectively, at the front and rear of the frame. These casings maybe utilized for holding provisions or parcels. The-feet of the I driver operate treadles p, Figs. 1 and 2, which are on forks g, which are fastened to the cross-connection d in hinge-joints r r, and from these latter the connecting-bars t 23 extend up to the cranks f f. The person driving the conveyance will, by alternate treading with each leg, set the mechanism on each side of the vehicle in motion. The two mechanisms, which are made alike and symmetrical, are independent of each other. By placing a brakestrap round the rim of each fly-wheel the latter can be turned into brake-wheels.

By means of the lever o,'Fig. 1, the brakestrap can be made to operate by lifting the handle w. The handles w are on both sides of the vehicle at a convenient height and close to the saddle, and the person driving rests during the drive on 'both sides with hand and arm on these handles 10, which are fitted into the guide-strap a0, fastened to the saddle. If the person driving treads uniformly with both feet on steps 11 the vehicle moves forward in a straight direction, provided the wheel-systems on both sides revolve in the same direction. Should the driver wish to turn to one side, then he lifts the corresponding handle on the right or the left, and thus causes the brake to operate and check the motion of the mechanism on the side in question. .The mechanism stops altogether as soon as he leaves off treading on that side. \Vhen checked in this manner the axles and the frame on that side slide back to a certain degree, and all the four wheels h h h it get into a slanting position; buton the other side of the vehicle the motion continues, and is kept up by continued treading. In consequence of this the vehiclewill move forward in a curved direction and the center of this curveis formed 5 by the side of vehicle onto which the brake has been put.

Turning in short curves is effected by putting on the brake quickly on either side. By

immediate quick treading after that the backward motion is brought about, which the driver checks again when the turning is effected and converts into a forward motion again.

In order to stop the vehicle quickly, both brakes must of course be put on at the same 1 5 time.

JOHANN HEINRICH SCHULZE.

\Vitnesses:

G. H. SMITH,

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