US601890A

US601890A - Clamp for bicycle-saddles

Info

Publication number: US601890A
Authority: US
Publication date: 1898-04-05
Anticipated expiration: 1915-04-05

Description

(No Model.)

.J. A. HUNT. CLAMP FOR BICYCLE SADDLES.

No. 601 890. Patented Apr. 5,-189'8.

III/l,

, VA) 1mm UNITED STATES PATENT OFFICE.

JONATHAN A. HUNT, OF WESTBOROUGH, MASSACHUSETTS.

CLAMP :FOR BlCYCLE-SADDLES.

SPECIFICATION forming part of Letters Patent No. 601,890, dated April 5, 1898. 7 Application filed January 25, 1897- Serial No. 620,596. (No model.)

To all whom it may concern/.-

Be it known that I, JONATHAN A. HUNT, .a citizen of the United States, residing at Westborough,in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Clamps for Bicycle-Saddles, &c., of which the following is a specification.

My invention relates to a clamp, and more particularly to a clamp for attaching the spring of a bicycle-saddle to the saddle post or support on the bicycle-frame; and the object of my invention is to make a clamp of simple and inexpensive construction; and my invention consists in certain novel features .of construction of my clamp, as will be herelooking in the direction of arrow a, same fig-- Fig. 4 is a vertical section on line 4 4,

ure. Fig. 2, looking in the direction of arrow 1), same figure. Fig. 5 shows a side or edge View of the clamp casing or shell before the collar or band is applied thereto and the clampingbolt and blocks or jaws combined therewith, and Fig. 6 shows a side view of the block or jaw against which the inner end of the clamping-bolt bears.

In the accompanying drawings, 1 is the tubular saddle-support, of any ordinary construction. 2 is the spring, which is also of well-known shape and construction and made of two substantially parallel rods 2' 2, which are preferably circular in cross-section and extend in the same horizontal plane.

My improved clamp consists of the casing or shell 3, which in its completed form is preferably of substantially elongated diamond shape, with an extension 3 on one side or end thereof. The extension 3 is preferably of tubular shape and is screw-threaded internally to receive the clamping screw or bolt 4. (See Fig. 3.)

In practice Iprefer to make the shell 3 out of a fiat strip or piece of steel, which is bent over at its middle portion on itself and the two free ends before or after the bending compressed and shaped to make a, tubular exten- 'sion,which is split longitudinally, as shown in Fig. 6. A collar or band 5 is then secured on the tubular extension 3 to draw together and rigidly hold the two parts thereof, and the interior of the tubular extension is threaded to receive the clamping-bolt 4.

The outer or exterior corners or projections of the shell 3 are preferably rounded, and the interior angles or recesses are also preferably made rounded, as shown in Fig.6.

Combined with-the casing or shell 3 and the clamping-bolt 4 to secure the supportl in the clamp and at thesame time to secure the two rods of the spring 2 in the clamp and also to the support are two removable blocks or

jaws

6 and 7, which extend through the shell 3, one on each side of the support 1. Each

block

6 and 7 is recessed or grooved on its inner surface or edge to receive the tubular support 1 and is also recessed or grooved on its outer surface or edge to receive the rods 2 of the spring 2. (See Figs. 2 and 3.)

The ends of the

blocks

6 and 7 are preferably provided with lips or'flanges 6' and 7 to extend over the edges of the shell 3 and prevent said blocks from moving longitudinally or slipping out of the shell 3 after the support 1 is inserted between them.

A third block or jaw 8 is preferably used in connection with the

blocks

6 and 7. The block 8 has one edge or surface grooved or recessed to receive one rod 2 of the spring 2. The opposite surface or edge of the block 8 is preferably rounded or convex to fit into the rounded end of the shell 1 and has in this instance an extension 8 thereon, circular in cross-section, which extends into the tubular extension 3 of the casing 3. The end of the clamping-screw 4 bears against the end of the extension 8. (See Fig.3.)

From the above description, in connection with the drawings, the operation of my clamp will be readily understood by those skilled in the art.

The block or jaw 8 is preferably first placed in the shell 3 with the extension 8' extending into the tubular extension 3. (See Fig. 3.) The free ends of the spring 2 are then inserted through the shell 3, and the blocks or

jaws

6 and 7 are then placed in the shell with the lips or

flanges

6 and 7 overlapping the edges of the shell. The support 1 is then inserted between the blocks 6 and '7 and the clamp moved to the desired position on said support and the spring 2 moved to the desired position in the clamp. The clamping-bolt 4 is then screwed in, and the end thereof bears against the extension 8' on the block 8 and acts to communicate direct pressure in a horizontal plane to the clamping-jaws and forces said block inwardly against one rod 2 of the spring 2 and,thr'ough said rod, forces the block 7 against the support 1 and the support 1 against the block 6 and the block 6 against the other rod 2 of the spring 2 and said rod 2 against the end of the shell 3, (see Fig. 3,) thus clamping and holding the several parts.

It will be understood that the details of construction of some of the parts of my clamp may be varied, if desired, and the shape thereof may be varied somewhat. The movable block 8 may be dispensed with and the inner end of the bolt or screw 4 bear directly outer edges, substantially as shown and described.

2. In a clamp for bicycle-saddle springs, the combination with the casing or shell split or divided at one side or end, and having a tubular internal-threaded extension on said divided end, and a collar or holding-band thereon, and a clamping-bolt turning in said tubu- 'lar extension, of two clamping blocks or jaws having grooved or recessed inner edges, and grooved or recessed outer edges, and a third clamping-block, against which the inner end of the clamping-bolt bears, substantially as shown and described.

J. A. HUNT.

W'itn esses:

J. O. DEWEY, M. J. GALVIN.