Work holders – Relatively movable jaws – With means for 'hold-down' component of force
Patent
1991-10-07
1992-08-25
Swann, J. J.
Work holders
Relatively movable jaws
With means for 'hold-down' component of force
269134, 269137, 269258, 269282, B23Q 302
Patent
active
051412136
ABSTRACT:
A vise comprises mainly a base, a sliding member, a movable base, and an urging member. The base consists of a long slot extending axially in the middle thereof and of a holding base located at upper portion of the rear end thereof. The holding base comprises at front end thereof a jaw. The sliding member comprises on front end thereof a cooperating block of a predetermined shape and at front end thereof a circular arc portion having an appropriate curvature radius. The movable base consists of a bevel face with hole having at rear end thereof a bevel fave with a cavity disposed thereon for placing and positioning an intermediate member and of a protruded block with the protruded arc portions of predetermined curvature radii. The urging member is composed of a screw and a top block comprising at rear end thereof a recessed arc portion having a curvature radius corresponding to that of the circular arc portion.
REFERENCES:
patent: 573886 (1896-12-01), Klingenberg
patent: 1349963 (1920-08-01), Jerrim
patent: 1751329 (1930-03-01), Hancock
patent: 4928937 (1990-05-01), Bernstein
patent: 5033724 (1991-07-01), James
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