Work holders – Operator supported
Patent
1978-08-03
1979-10-09
Watson, Robert C.
Work holders
Operator supported
B25B 300
Patent
active
041703430
ABSTRACT:
A portable work holder for positioning and maintaining an article being sharpened, such as a knife, or the like, in predetermined position relative to a planar surface of a stationary abrasive member or stone during manual manipulation of the article relative to the abrasive member for the purpose of sharpening the same, having two plate-like relatively long narrow clamp members each with one end having a bevel on only one side and pivotally connected by a countersunk head screw to one another adjacent to their bevelled ends with their bevelled sides facing away from one another, a thumb screw threaded in a tapped aperture in one of the clamp members intermediate the pivotal connection of the members to one another and the ends of the clamp members remote from the previously mentioned bevelled ends with its non-headed end engaging the other clamp member for forcing the bevelled ends of the clamp member towards one another, and movable projections of equal length in the form of eye bolts extending a substantial distance from the sides of the clamp members adjacent to their ends other than the aforementioned bevelled ends thereof.
REFERENCES:
patent: 3819170 (1974-06-01), Longbrake
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