Work holders – Relatively movable jaws – With means to bias jaw toward nonholding position
Patent
1988-08-25
1990-03-20
Watson, Robert C.
Work holders
Relatively movable jaws
With means to bias jaw toward nonholding position
B25B 116
Patent
active
049094955
ABSTRACT:
A workbench capable of clamping workpieces of various thicknesses. The workbench includes a laterally disposed work table mounted on a support structure. A clamping member is provided which includes a clamp positioned above the work table and configured to clamp a workpiece between the clamp and the work table. The workbench further includes a foot treadle pivotally mounted on the support structure. A linkage interconnects the foot treadle with the clamping member such that rotation of the foot treadle in a first direction moves the clamp into clamping relation with the work table, and rotation of the foot treadle in a second direction moves the clamp away from the work table.
REFERENCES:
patent: 663819 (1919-12-01), Newnam
patent: 1114992 (1914-10-01), Kalaher
patent: 1253725 (1918-01-01), Rahfeldt
patent: 1418924 (1922-06-01), Hodgkinson
patent: 1818837 (1930-03-01), Barker
patent: 3025050 (1962-03-01), George et al.
patent: 3608885 (1971-09-01), Roth
Hopkins William P.
Neuenschwander Charles H.
Petersen David A.
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