US127A - Mode oe coitstbuctikg bebtch abtd othek vises - Google Patents

Description

UNITED STATES PATENT OFFICE.

LINUS DEAN, OF UTIOA, NEW YORK.

MODE OF CONSTRUCTINGLBENCH AND OTHER VISES.

Specificaton of Letters Patent No. 127, dated February 16, 1837.

To all wlwm it may concern:

Be it known that I, LINUs DEAN, of thev not made to open by means of a ]oint pin,

in the ordinary manner, but it is provided with grooves, on its lower side, which fit on to, and by means of whichV it slides freely along, a horizontal bar, the upper edge of which projects over on each side so as to form tongues, or ribs, which fit into the grooves of the sliding jaw; upon one end of this horizontal bar the fiXed jaw is situated, being firmly attached thereto. The bar has fianches on its lower side, by which it is to be attached to the bench. Instead of moving the sliding jaw by a screw, I effect this by means of a rack, and a spiral, or volute, wheel, the fillet of which takes into the teeth on the rack, which teeth occupy the upper side of the sliding bar.

The spiral, or volute, wheel, revolves upon a pin rising from the sliding jaw, near to its back end'; the spiral, or volute, is formed upon the lower face of this wheel, making one entire turn thereon. The wheel is inclined back from a horizontal position, to enable the fillet, or spiral, to take into the rack teeth; a projecting pint-le on the upper side of the wheel recelves a handle, or wrench, by which it may be turned. This pintle forms a socket in the center of the wheel to receive the pin on which it turns.

The size of the respective parts will, of

course, depend upon the size of the' vise itself. The following are the general dimenslons of the principal parts of one which I have made.V The bar is about two feet in length, two and a half inches deep, and one and a fourth inch wide. The fixed jaw is about the size, and is in the form, of that of an ordinary smith,s vise; the movable jaw 1s of the same size and form, but it has a proJecting piece extending back about six inches, which forms a part of the cheeks of the slide, and from which rises the pin upon which the spiral wheel revolves; theV wheel 1s about siX inches in diameter, the thread, or fillet, forming the spiral, about fiveeighths of an inch square; and the pin which passes through the wheel, two inches high, and one inch and a half in diameter. The bar of this vise is to be secured upon the bench with the fixed jaw toward the worki i man.

Having thus fully described the constructlon of my improved vise, I do hereby declare that I do not claim to be the inventor of the sliding jaw, this having been before LINUs DEAN.

Witnesses IBA CHASE, J AMEs DEAN.

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