US452639A - Half to albert james gregory - Google Patents

Description

(No Model.)

C. H. GATCHELL.

VISB 0R CLAMP. No. 452,639. Patented May 19,1891.

UNITED STATES PATENT OFFICE.

CHARLES H. GATOHELL, OF FREDERIOTON, CANADA, ASSIGNOR OF ONE- HALF TO ALBERT JAMES GREGORY, OF SAME PLACE.

VISE OR CLAMP.

SPECIFICATION forming part of Letters Patent No. 452,639, dated May 19, 1891.

Application filed January 27, 1891.

To @ZZ whom, t may concern.-

Beitknown that I, CHAELEs H. GATCHELL,

a citizen of the United States, and a resident of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of' this specification.

My invention relates to improvements in vises or clamps, principally designed for woodworkers use, for clamping and holding pieces of wood or other articles to be operated upon.

The object of the invention is to provide simple and economical means for the above purpose, whereby the device may be used, in connection withan ordinarycarpentersbench, as abench-vise or asa portable or hand clamp, as may be desired.

The invention consists in the novel features of construction and new combination of parts hereinafterfully described and speciically pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of the device when employed as a bench-vise. Fig. 2 is a plan view of the same. Fig. 3 is a side elevation of the device when employed as a hand-clamp. Fig. 4 is a plan View of the same.

In the said drawings, the reference-n umeral 1 designates a portion of an ordinary carpenters bench, to which is secured, by means of screws or otherwise, a jaw 3, whichI term the bench-jaw. This jaw consists of the vertical walls 4, having outwardly-projecting flanges 5, with apertures therein for the securingscrews, a transverse portion 6, and an upwardly-projectingportion 7, the latter forming the jaw proper, against which the article to be held abuts. The transverse portion is provided with a iiat spring 8. When the jaw is secured to the bench, there is a square or rectangular opening formed, in which is inserted the adjustable and removable beam 9.

The numeral 10 designates a square or rectangular link or stirrup, which embraces the beam and also passes around the jaw 3 at the Serial No. 379,273. (No model.)

junction of the projecting portion 7 with the transverse portion 6. There is secured to the lower transverse portions of the stirrup, by means of loops or eyes 12, a corrugated plate 13, which rests against the lower side ot the beam. The free end of spring 8 rests upon an offset 8 on the upper transverse portions ofthe stirrup and presses it against the'jaw 3. At the opposite end of the beam is secured a fixed block 14, having upwardly-projecting flanges 15 at each side, which form ways for the sliding jaw 16, having a central slot 17,

through which passes a pin 18, securely fixed to the block, and the upwardly-projecting portions 19 and the lug 20. The portion 19 is also provided with a lug 20.

Pivoted on the pin 18 is an eccentric 21, provided with an operating-handle 22, having an eccentric-head 23, which is securely fixed to the eccentric 21. This head, upon its periphery, is provided with a series of ratchetA teeth 24, with which is adapted to engage a pawl 25, pivoted to the lug 20, so as to hold the sliding jaw in place when forced toward the bench-jaw by means of the eccentric.

The numeral 26 designates the supplemental, or what I term the clamp,7 jaw, to be employed when this device is used as a hand clamp. This jaw consists of a vertical portion 27, a horizontal portion 28, having a spring 29, and with a downwardly-depending flange 80 on each side.

The operation is as follows: The jaw 3 is secured to t-he bench by means of screws 0r otherwise, and the stirrup is placed over it, as shown, with the crank-like offset under the free end of spring pressing back the stirrup to aperpendicular position, or as far as it will go, which will allow the beam to be readily inserted in the space between the jaw and bench. By now releasing the link or stirrup the spring will cause that part under the beam to press the corrugated plate closely against the lower side of the beam, and thus securely hold the same in place and prevent it from slipping. To adj ust or remove the beam, the link or stirrup is pressed back, (a sharp blow being given to the outer-end of' the beam, if it lsticks,) whenrthe beam can be suitably ad justed or entirely removed, as desired. When the beam is properly adj usted,the article to IOO be clamped is .inserted between the bench-jaw and sliding jaw, andthe eccentric on the pin on the iiXed block is actuated by means of its handle, which will canse said jaw to be forced forward and the article securelyelamped and held, the pawl engaging with the ratchet-teeth on the lever-head, preventing any backward movement of the eccentric and jaw.

Vhen it is desired to use the device as a hand-clamp, the beam is detached from the bench-vise and the supplemental jaw is employed, the same being connected to the beam by means of the stirrnp in a similar manner to that before described.

Having thns described my inventiomwhat I claim is-n l. The combination, with a bench-jaw, of an adjustable and removable beam provided with a sliding jaw, the stirrnp en'ibracing the bench-j aw and the beam, and the corrugated plate interposed between the beam and the lower part ofthe stirrnp, substantially as described.

2. The combination, with thebench-jaw, of the adjustable and removable beam provided with a sliding jaw, the stirrup embracing the bench-jaw and the beam and having an oli?- set at its upper part, the spring secured to the bench-jaw, bearing upon said oiset, and the corrugated plate interposed between the beam and the lower part of the stirrnp, substantially as described.

The combination, with the bench-j aw and the stirrup, of the adjustable and removable beam, the Fixed block secured to said beam, the sliding' jaw having lugs at each end working in ways in said block and having a central slot, the pin fixed to said block, the eccentric pivoted on said pin, the handle and head having ratcl1et-teeth` thereon, and the pawl pivoted to one of said lugs, substantially as described.

t. The combination, with the beam provided with a sliding jaw, of the interchangeable bench and clamp jaws and the stirrups for connecting them withsaidbeam, substantially as described.

In testimony that I claim the foregoing as my own I have hereunto a'ixed my signature in presence of two witnesses.

CHARLES ll'. GAlClIE'LL.

\\'itnesses:

J'. C. Doiinnrig A. W. MAUHUM.

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