US187558A - Improvement in work-benches - Google Patents

Description

'UNITED STATES GEoEGE RATHBUN, or sEDAN, xANsAs.

IMPROVEM ENT IN WORK-BENCHES.

Specification forming part of Letters Patent No. 187,555, dated February 20; 1577; application tiled March 24, 1876.

To all whom it may concern Be it known that I, GEORGE M. RATHBUN, of Sedan, in the county of Chautauqua, and State of Kansas, have invented certain new and useful Improvements in Work-Benches; and I do hereby declare that the following is a full, clear, vand 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, in which- Figure l represents a side view of the bench. Fig. 2 is an vend view, and Fig. 3 is a view of the under side, -showing the operating1 devices.

A represents the,l jaw ofthe vise, which is attached to the bench by an extension-bar, B. This bar passes through a mortise in the jaw A,'and also through one ofthe legs of the bench as far'as is required to secure regular movements. The jaw A playsloosely on the bar, being held to its place by a pin, C, which passes through the bar at its head and rests in staples or sockets in the jaw.

The bar B may be made to pass over one or two small wheels, so as to lessen the friction andpermit its moving forward with ease.

A mortise in the center of. the extensionbar B extends from within one of the legs of the bench, when the jaw is pressed to the bench, as far toward the end of the bar as. is necessary to give sufcient movement to hold asthick or as thin material as desired. One or more Wedges, E, are placed in this mortise, the first one, or one nearest the leg of the bench, being tapered sufliciently so that :it will not slip when pressed in operating the vise.

. A slide, F, is placed in the mortise G in'the front side of the bench, with a bar or rod through or behind it, holding it firmly to its place; but allowing it to move endwise in the mcrtise. The point of Y the wedge E is attached to this slide, so that when the slide is moved it carries the wedge with it. A lever, H, attached to the under side of the plank which forms the top of the bench, passes down through the slide F, and far enough below, so that it may be easily moved with the hand or foot.

A spring, I, is placed on the back of one of the front legs of the bench, and is attached to theextension-bar B by a string or strap,

so las to draw or press the bar forward as fast as the wedge E is loosened.

` In a mortise in the lower end of the jaw A a cam-lever, J, is placed with a pivot-pin holding it near the center of the mort-ise. This lever is curved enough to extend toward one of the front legs of the bench, when the outer end of it is raised to its highest extent but when pressed to the floor it will extend from two to four inches beyond the face of lrhe jaw.

At the foot of the bench is placed a bar, K, with a hat face of sucient size, for the lever J to Work upon. Ahis bar passes back through one of the legs of the bench as far as is desired to hold it steady, and may be extended to keep the jaw A in a proper positionwhile working very thick material, by

placing a pin through it in front of the leg of the bench.

Ihe figures l, 2, 3, 8vo., are placed along the slide-mortise Gr to indicate the place where the Amark on the slide should stop while working lumber of the thickness indicated by the ligure.

rIhe extension-bar B and the bar K may be held to their placesby perpendicular slats L, or by any other suitable means.

When the vise is in prcper order for work, moveV the mark on the slide F to the figure desired by means of the lever H; then place the foot under the lever J and raise it, at the same time pressing the bottom of thejaw toward one of the front legs ofthe bench; then place the plank in the vise, pnt the foot on the lever J, and press it to the floor, thus fastening the plank. To loosen the plank, place the foot under the lever and raise it.

I .am aware that. a vise has, to a very limited extent, been used with a foot-lever I similar to the one here described, and a bar extending forward from one ofthe legs ofthe bench through the jaw, with one wedge in front; but the action of that vise was so imperfect that it failed to be of value. In my invention the bar being fastened in the jaw, and extending beneath the bench, instead ot' being in an inverted position, renders it more I, all constructed and arranged substantially easily adjustable, and secures important adas and for the purpose set forth. Vantages.

I Claim GEORGE M. RATHBUN. In a Work-bench the combination of the Witnesses: i

jaw A, extension-bar B, Wedge E, moving de JOAB GAVINESS,

vices H G, foot-bar K, and retracting-spring HIBAM CABLE.

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