US595106A

US595106A - Otto kratjs

Info

Publication number: US595106A
Authority: US
Publication date: 1897-12-07
Anticipated expiration: 1914-12-07

Description

(No Model.)

0. KRAUS.

BICYCLE BRAKE.

No. 595,106 Patented Dec. 7, 1897.

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OTTO KRAUS, OF NEIV YORK, N. Y.

BECYCLE-BRAKE-L SPECIFIGATION forming part of Letters Patent No. 595,106, dated December 7, 1897.

Application filed November 16, 1896. Serial No. 612,191- (No model.)

T0 (I/ZZ whom it may concern.

Beitknown that I, OTTO KRAUS, a citizen of the United States of America, and a resident of New York, in the county and State of New York, have in vented certain new and useful Improvements in Brakes forBicycles,of which the following isa specification.

My invention has reference to improvements in brakes for bicycles and other velocipedes, and has for its object to provide a brake-lever adapted to be attached directly to the handle-bar without the use of pins or pivots.

The nature of my invention will best be understood when described in connection with the accompanying drawings, in which Figure 1 represents a plan or top view of a handle-bar provided with my improved brakelever. Fig. 2 is a rear view, partly in section. Fig. 3 is a perspective, on an enlarged scale, of the locking-lug for holding the brake-lever within the handle-bar and for limiting its downward motion. Fig. 4 is a bottom view of a portion of the handle-bar. Fig. 5 is a vertical section taken through the lower end of the brake-plunger. Fig. 6 is a section in the plane 6 6, Fig. 5, drawn on an enlarged scale.

Similar letters and numerals of reference designate corresponding parts throughout the several views of the drawings.

Referring to the drawings, the letter a designates a tubular handle-bar provided with a post 1, fitted into the upper end of the fork stem or tube Z) and adapted to be secured by a suitable clamp c, all as usual. In the handle-bar and to one side of the post 1 are formed two diametrically opposite slots 2 and 3, adapted for the passage of the brake-lever (Z. Said lever has a handle 4:, following substantially the curvature of the handle-bar and placed within reach of the hand and formed with an arm 5, which engages with its outer end the fork 11 of the brake-rod c, and said lever is also formed with an intermediate portion 6 at substantially right angles to the proximity to the outer end of the slot 3, while the shoulder or offset 7 forms a fulcrum about which the lever turns and the use of a pivot is dispensed with. The lower slot is made of a sufficient length to permit the lever to be passed through the handle-bar, and said slot is partially closed by any suitable devicc such, for instance, as the locking-lug 10, made I shape in cross-section, with a contracted neck ll. and with flanges 12 on opposite sides of said neck. The sides of the slot 3 are notched, as at 13 13, to permit the passage of the flanges of the locking-lug, said lug after insertion being slid toward the left of Fig. 4: to secure it in place. This locking-lug prevents the lever from falling out of the handle-bar and also serves as a stop to limit the outward motion of said lever. The brakeshoe J, of any usual construction, is attached to the lower end of the brake-plunger tube 17,which latter is prevented from turning by a longitudinal recess 1e, formed in the same and engaged by a projection 16 on a disk 15, secured in the lower end of the fork-stem. The fork-stem is secured in any usual wellknown manner into the steering-head tube g. The brake-shoe J may be readjusted when the handlebar is raised or lowered by turning the threaded brake-rod e of the plunger. A spring h, acting on the disk 15 and on the plunger-head, normally holds the brake from the tire and the brake-lever away from the handle-bar.

It will be noticed that when the arm of the brake-lever is seated in the notch at the upper end of the brake-rod e the latter is prevented from turning, and consequently the position of the brake-shoe is immovably fixed with respect to the saidbrake-rod. In adj ust-ing the brake to correspond to an adjustment in the height of the handle-bar the brake-lever is disengaged from the fork 11 of the brake-rod, so that the latter may be turned.

IVhat I claim as new is 1. A brake-lever formed with a handle, an arm and with an intermediate portion adapted to extend through the handle-bar tube and provided with an offset or shoulder forming a bearing adapted to contact with the inner surface of the handle-bar and with bearingsurfaces, substantially as described.

2. The combination with a handle-bar having oppositely-placed slots, of a brake-lever extending through said slots and provided with an offset or shoulder forming afulcrum about which said lever turns, and with two bearing-surfaces engaging the inner end of the upper slot and with the bottom of the handle-bar tube and a brake placed in connection with the brake-lever, substantially as described.

3. The combination with a handle-bar having oppositely-placed slots, of a brake-lever extending through said slots and provided with an offset or shoulder forminga fulcrum about which said lever turns, and with two concentric bearing-surfaces engaging the inner end of the upper slot and with the bottom of the handle-bar tube, a locking-lug partially closing the lower slot and a brake placed in connection with the brake-lever, substantially as described.

4. In a velocipede, the combination of the handle-bar, the steering-head tube, the fork stem or tube, an adjustable brake-plunger provided with a longitudinal recess, a disk fitted to the fork-stem and provided with a projection engaging said recess, a brake-shoe attached to said plunger, and a brake-lever extending through the handle-bar and engag ing the upper end of the brake-plunger, substantially as described.

5. The combination with a tubular handlebar having oppositely-placed slots, of a brakelever extending through said slots and provided with a shoulder or offset forming a fulcrum, and with a concentric bearing-surface adapted to engage with the inner end of the upper slot, a locking-lug partially closing the lower slot, and a brake placed in connection with the brake-lever, substantially as described.

6. In a velocipede, the combination of a tubular handle-bar, a brake-lever passing through said handle-bar and having its fulcrum within the latter, a brake and a brake rod having its upper end forked for the reception of the arm of the brake-lever, substantially as described.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 3d day of October, 1896.

OTTO KRAUS.

NVitnesses:

EUGENIE A. PERSIDES, A. FABER DU FAUR, Jr.