Work holders – Relatively movable jaws – Weight of a vertically disposed panel actuates jaws
Patent
1993-01-14
1994-03-15
Watson, Robert C.
Work holders
Relatively movable jaws
Weight of a vertically disposed panel actuates jaws
269905, B23Q 302
Patent
active
052940993
ABSTRACT:
A holder assembly for clenching a door in upright position includes a pair of jaws having respective horizontal base members and upright clamp member, a pair of resiliently compressible support pads attached to and underlying the outer end portions of the base members for holding the jaws stationary on the floor in a generally non-slip fashion and the outer end portions of the base members in an elevated position above the floor, and a hinge including a pair of side-by-side hinge members and a removable pin pivotally coupling the hinge members to one another so as to establish a door receiving slot between the upright clamp members of the jaws. The base members at adjacent inner end portions thereof and the hinge members attached thereto are allowed to oppositely pivot upwardly away from the support surface to higher than the elevation of the outer end portions of the base members in order to place a door within the slot and to oppositely pivot downwardly toward the support surface to lower than the elevation of the outer end portions of the base members after a door is placed within the slot and the weight of the door is rested on the side-by-side hinge members. The opposite downward pivoting of the jaws at the inner end portions of the base members causes the upright clamp members to pivot toward one another and form a tight gripping hold on opposite sides of the door positioned in the slot between the clamp members.
REFERENCES:
patent: 611340 (1898-09-01), Smith
patent: 2621687 (1952-12-01), Fordern
patent: 4168827 (1979-09-01), Hutchinson
patent: 4270741 (1981-06-01), Hurst
patent: 4391437 (1983-07-01), Collins
patent: 4695067 (1987-09-01), Willey
Flanagan John R.
Watson Robert C.
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