US50766A - Improved boot or harness clamp - Google Patents

Description

A. J. CURTIS. BOOT 0R HARNESS CLAMP.

No. 50,766. Patented Got. 31, 1865.

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UNITED STATES PATENT OEEIcE.

ANDREW J. CURTIS, OF WINTERPORT, MAINE, ASSIGNOR TO BENJN. F. WAL

DRON, OF BOSTON, MASSACHUSETTS, AND CHAS. T. SEAVEY, OF FRANK- FORT, MAINE.

IMPROVED BOOT OR HARNESS CLAMP.

Specification forming part of Letters Patent No. 50,766, dated October 3l, 1865.

To all whom Ait may concern.:

Be it known that I, ANDREW J. CURTIS, of Winterport, in the county of Waldo and State of' Maine, have invented an Improved Vise or Bootor'H arness Clamp; and Ido herebydeclare the same to be fully described in the following specification and represented in the accompanying drawings, of which- Figure lis a. front elevation, Fig. 2 a side View, and Fig. 3a horizontal section, of it, such section being taken through the jaw-legs and the movable clamping arm or lever, to be hereinafter described.

[n the drawings, A and B are twojaws, each of which is fixed to or makes part of one of two legs, C D, which are formed and hinged together, as shown at a, the sanne being so that the jaws may be either moved toward or apart from one another. The stationary leg C has feet or branches b c d extending from its lower part in manner as represented in Figs. 1 and 2, one or more holes being made through each ot such feet or branches, and for the purpose of enabling the vise or clamp to be fastened to a. table or bench by screws going through such holes. An arm or lever, E, extends througha slot, lz, made in the stationary leg C, and at one end isjointed or hinged to the movable leg l), as shown at c. An elliptical ring,f, is fastcned to the other end ot' the lever F, bears against the adjacent curved edge ofthe leg C, and has a friction-spring, g, projecting from it and against such edge, the whole being as exhibited in the drawings. The lever E is also provided with one or two shoulders, z' t', to rest against the inner curved Surface ot' the leg C.

On raising the lever E on its fulcrunI thejaws will be caused to open or move apart from one another, and on depressing the lever they will be made to approach and close upon each other, the spring g serving to hold the lever in any positionin which it may be placed while such spring may be in contact with the leg C.

The vise or clamp so made is a very convenient onetorholdingbootlcatherorparts ofharvness or various materials while being sewed or stitched by a workman, as by means of the lever E the jaws can be opened and closed to great advantage and with more dispatch than they can by a screw as ordinarily applied to the legs ot' the jaws of a common bench-vise.

I am aware that a. harness vise or clamp has had itsjaws operated by a. screw, and therefore I do not claim such; but

What I claim as my invention is l. The above-described improved vise or stitching-clamp, as constructed with a clamping-lever, E, and its shoulder or shouldersiand handle or ring f (or the eqnivalentof the latter) arranged and combined with the curved jaw-leg C and its fellow leg D in manner and so as to operate therewith, substantially as described.

2. The combination of the spring g with the handle f,the lever E, and the jaw-legs C D, made and applied in manner and so as to operate together, substantially as described.

AND REW J. CURTIS.

Witnesses:

GILBERT L. CURTIS, WILLIAM TRUE.

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