Hand-held jeweler's clamp

Details Hand-held jeweler's clamp Hand-held jeweler's clamp

1980-06-23

1982-05-04

Watson, Robert C.

Tools

Engravers' clamps

269 3, 269 6, 269234, 269238, 269909, B25B 504

Patent

active

043276083

ABSTRACT:
A hand-held vise for use by jewelers or the like comprising a pair of clamp members having jaws at one end, a fulcrum pin extending transversely between and intermediate the ends of such clamp members, and a ring surrounding the clamp members to constrain the latter to pivot about a fulcrum pin. A screw-threaded rod is connected to the fulcrum pin, and extends rearwardly therefrom between the clamp members in the direction away from the jaws. Screwed onto this rod is a handle having a tapered formation at one end engageable with the adjacent ends of the clamp member to effect a clamping action of the jaws on a workpiece.

REFERENCES:
patent: 14795 (1856-05-01), Buss
patent: 57977 (1866-09-01), Sanborn
patent: 166553 (1875-08-01), Pollard
patent: 327558 (1885-10-01), Kuder
patent: 542402 (1895-07-01), Anzelewitz
patent: 941832 (1909-11-01), Widmann
patent: 1532510 (1925-04-01), Mathews
patent: 2261005 (1941-10-01), Thompson et al.
patent: 2269790 (1942-01-01), Sherril
patent: 3096551 (1963-07-01), Shoberg
patent: 3778868 (1973-12-01), Kelly
patent: 4171800 (1979-10-01), Weaver

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