US774421A - Handle-bar for bicycles. - Google Patents

Description

No. 774,421. I PATENTED NOV. 1904.

v H. D. GRISWOLD.

HANDLE'BAR FOR BIGYOLES.

APPLICATION FILED AUG. 5, 1901. RENEWED APR. 12, 1904.

N0 MODEL.

UNTT D STATES Patented November 8, 1904.

HENRY D. GRISWOLD, OF PROVIDENCE, RHODE ISLAND.

HANDLE-BAR FOR BICYCLES- SPECIFICATION forming part of Letters Patent No. 774,421, dated November 8, 1904. Application filed August 5, 1901. Renewed April 12, 190 Serial No- 202,872. (No model.)

To (all whom, it 777/602] concern.-

Be it known that I, HENRY D. GRIswoLD, of the city of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Handle-Bars for Bicycles; and Ido hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to certain improvements in handle-bars for bicycles or other like vehicles, and has for its object to provide a handle-bar that can be put in any desired position and that will be held firm and can be depended upon to control the front wheel when set and secured.

In the accompanying drawings, Figure 1 is a top view of the handle-bars and clamp. Fig. 2 is a rear elevation of the handle-bars, showing different positions in dotted lines. Fig. 3 is a rear view of the inner ends of the handlebars with one of the side plates in the rear and a part of the holding-clamp removed. Fig. i is a top view of the inner ends of the handle-bars with the top of the clamp removed. Fig. 5 shows the inner end of one of the handle-bars in position, with the side plates in section. v Fig. 6 is an inside view of one of the side plates. one of the side plates. of the two side plates by themselves. Fig. 9 is a perspective view of the grooved block.

Referring to drawings,A represents a part of the guiding-stem that controls the front wheel of the bicycle, and B B denote the handlebars. The clamp c, that holds the bars in place when set, consists of a lower part, attached to a tubular stem O, and an upper part or cap B, which is connected to the lower part by a hinge g on one side and by a bolt D on the other side. (See Fig. 5.) The handle-bars B B are made separate and have their inner ends scarfed oif on each side (see Fig. 4:) and made semicircular and provided with gear-teeth a a, arranged so that the teeth of one bar shall engage with the teeth of the other bar when in the clamp, (see Fig. 3,) so

Fig. 7 is an outside view of- Fig. 8 1s a top v1ew that when one handle-bar is moved up or down the other bar will be moved in like manner.

One of the flat sides of the inner end of each of the bars B is provided with teeth 6, radiat-.

ing from the holes .9 8, made in the center of the semicircular ends of the bars. (See Fig. 3.) Two side plates 0 c are made with semicircular ends and flat on their inner sides, with studs 8 8 made in the center of the semicircular ends. (See Fig. 6.) One of these plates, 0, (see Fig. 6,) has teeth 6 made in its face radiating from its studs 8' s. The studs .9 s on the plates 0 and the radial teeth 7/ correspond with the holes .9 s and radial teeth 5 on the inner ends of the handle-bars B B. The side plates 0 0 are made round on their outside and have longitudinal teeth f made on the middle portion of one of them, (see Fig. 7,) which teeth agree with and fit into like teeth f, made on the inner face of the block J. (See Fig. 5.)

The block J is held in a recess made in the lower part and also in the cap of the clamp and has a flat portion which extends out under the lip of the cap of the clamp with projecting ears c e on each side by which it can be held in place with the thumb and finger when the cap is unscrewed to change the position of the handle-bars.

The side plates '0 c are held one on each side of the inner ends of the handlebars B when together, as in Fig. 4:, by the studs .9 s, which pass through the holes 8 s in the ends of the bars, as seen in Fig. ft, in which the studs .9 s are dotted in. I

To arrange the handle-bars and side plates in the clamp in working order, the two inner ends of the bars B are put together so that their teeth a a will engage with each other, and the two side plates 0 0 are placed one on each side, with the studs 8' s on them in the holes 8 s in the ends of the handle-bars, care being taken to put the side plate 0 with the radial teeth t on the side of the handle-bars that have the radial teeth 6, so that the two sets of teeth will engage with each other. The bars, with the side-plates on them, are then put in the lower part of the clamp with the side plate 0 toward the open side of the clamp,

with the longitudinal teeth f in position to engage with the teeth f" on the block J, which is then placed in its recess in the clamp, and the cap is shut down and secured by screwing the bolt D down through the lip of the cap and through the block J into the lower part of the clamp.

The outer side of the block J is made beveling, so that the closing down of the cap by the boltD will force the block in toward the side plate a and cause the teeth 1 of the block J to enter into engagement with the teeth f of the side plate 0 and prevent the bars from turning, and at the same time the radial teeth 7) of the bars B and the radial teeth 6 of the side plate 0" will enter each other and hold the handle-bars up in place.

\Vhen it is desired to set the handle-bars in a diiferent position, by loosening the bolt D and raising the cap B a little ways the bars, with the side plates, will be free to turn in the clamp, and the bars can be raised or lowered to any desired position and made fast by again screwing down the bolt D.

Having thus described my improvement, what I claim as new, and desire to secure by Letters Patent, is-

1. In adjustable handle-bars for bicycles the combination of the following instrumentalil ties, a pair of bars having gear-teeth on their inner ends, the teeth of one bar engaging with the teeth of the other bar, radial teeth on one side of the ends of said bars, side plates having radial teeth on the inner side of one of them, fitting into the radial teeth on said bars, studs projecting from the inner sides of said side plates and into said bars, a hinged clamp inclosing said side plates and bars, with means for closing said clamp to hold the bars, substantially as described.

2. The combination of two handle-bars having gear-teeth in their inner ends, the teeth of one bar engaging with the teeth of the other bar, side plates convex on the outer side to connect said handle -bars, studs projecting from the inner sides of said side plates and into said bars, a hinged clamp to inclose said bars and convex side plates and allow the bandle-bars to be turned up or down, and a screwbolt to fasten said clamp when closed, substantially as described.

3. The combination of two bars having gearteeth on their inner ends, the teeth of one bar engaging with the teeth of the other bar, side plates having solid studs to connect said bars, a hinged clamp to inclose said bars and side plates, teeth made on the outside of one of said plates, a block having teeth on it held in said hinged clamp, a screw-bolt to secure said clamp when closed, substantially as described.

In testimony whereof I have hereunto set my hand this 2d day of August, A. D. 1901.

HENRY D. GRISW'OLD.

In presence of- BENJ. ARNOLD, HOWARD E. BARLOW.

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