Work holders – Relatively movable jaws – Plural jaw pairs – angularly oriented – for common work
Patent
1994-01-11
1995-11-21
Watson, Robert C.
Work holders
Relatively movable jaws
Plural jaw pairs, angularly oriented, for common work
269155, 269900, 269134, 269296, B25B 100
Patent
active
054679729
ABSTRACT:
A clamping apparatus having a fixed post with a pad and a clamping jaw post with a threaded hole, through which a screw with a handle on one end and a pad on the other passes. The clamping apparatus may be used with rails so that on the bottom rail the fixed post is placed within one hole and the clamping jaw post placed within another hole such that a workpiece may be clamped between the two, and additionally a top rail with holes that the other ends of the fixed and clamping jaw post engage with may be added to prevent the workpiece from buckling when clamping pressure is applied by turning the screw.
REFERENCES:
patent: 95337 (1869-09-01), Goulden
patent: 1954708 (1934-04-01), Mass
patent: 4121817 (1978-10-01), Pavlovsky
patent: 4157819 (1979-06-01), Meyer
patent: 4415149 (1983-11-01), Rees
patent: 4671500 (1987-06-01), Mark
patent: 5058870 (1991-10-01), Cetnar
patent: 5342031 (1994-08-01), Yu-Fang
patent: 5356124 (1994-10-01), Ai
Lee Leonard G.
Lynn John S.
McLean Francis A.
Sevack Lloyd
Tucker Edwin C.
Lee Valley Tools Ltd.
Pratt John S.
Watson Robert C.
Weingaertner Scott T.
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