Work holders – Relatively movable jaws – With means to fasten holder to support
Patent
1981-09-17
1983-03-29
Watson, Robert C.
Work holders
Relatively movable jaws
With means to fasten holder to support
269139, 269219, 269901, 108134, 108160, B25B 122
Patent
active
043781071
ABSTRACT:
A workpiece supporting and clamping assembly is adapted to be mounted on a wall or similar structure and to be adjustable between a substantially vertical storage position, closely adjacent the wall and a working position substantially perpendicular to the wall. The assembly comprises a pair of brackets, a pair of spaced apart, parallel hinge assemblies, each having locking means and a release lever associated therewith, and a workpiece supporting and clamping device, pivotally coupled with the brackets and hinge assemblies. The workpiece supporting and clamping device comprises a generally rigid base frame which includes a pair of parallel, spaced apart frame members and a pair of elongated, coplanar top members which are mounted on the spaced apart members, extending generally transversely thereto such that their upper surfaces define the work supporting surface and their opposed side surfaces, the work clamping surfaces. The supporting and clamping structure is pivotally mounted, to the brackets and to the hinge assemblies, which are pivotally interconnected with the brackets. When the workpiece supporting and clamping assembly is in its storage position, the hinge assemblies are collapsed. When the assembly is brought to its working position, the hinge assemblies are extended and lock securely in extended position supporting the supporting and clamping structure and in its working position until both hinge assemblies are affirmatively released by means of their respective release levers.
REFERENCES:
patent: 1852990 (1932-04-01), Wandtke
patent: 1951888 (1934-03-01), Tinsley
patent: 3113533 (1963-12-01), Snow
patent: 3499675 (1970-03-01), Isenberg
patent: 4073484 (1978-02-01), Beekenkamp
patent: 4155609 (1979-05-01), Skafte et al.
Pizzuto Russell
Wagster Robert P.
Black & Decker Inc.
Murphy Edward D.
Ottesen Harold
Ottesen Walter
Watson Robert C.
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