Woodworker's clamp

Details Woodworker's clamp Woodworker's clamp

1999-09-13

2000-07-18

Scherbel, David A.

Work holders

Relatively movable jaws

With separate positioning means for each of jaw pair

269 3, 269143, 269249, 269207, 269901, B25B 102

Patent

active

06089556&

ABSTRACT:
A hand tool or clamp, capable of clamping a work-piece of any size within a wide range of sizes, includes a fixed jaw secured to one end of a slide bar, the other end of which is received in an elongate hollow sleeve and supported for back and forth movement relative to the sleeve. A movable jaw is supported on said sleeve at a selected one of plural mounting locations spaced along the length of the sleeve, each defined by a transverse pin extending through the sleeve. Once the fixed jaw has been advanced by hand toward the movable jaw sufficiently to clamp the work-piece, the sleeve and slide bar are releasably locked together by a pawl and ratchet mechanism. The clamping pressure is increased over that provided by hand by a screw mechanism associated with the fixed jaw.

REFERENCES:
patent: 870761 (1907-11-01), Benson
patent: 1241215 (1917-09-01), Hoffman
patent: 1272259 (1918-07-01), Herold
patent: 1354378 (1920-09-01), Carpenter
patent: 1484794 (1924-02-01), Moses
patent: 1583611 (1926-05-01), Seely
patent: 2255320 (1941-09-01), Kotchi

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