Work holders – Plural holders to hold workpieces relative to each other – Workpieces parallel to each other
Patent
1984-01-26
1985-11-12
Watson, Robert C.
Work holders
Plural holders to hold workpieces relative to each other
Workpieces parallel to each other
269113, 269287, 269221, B25B 120
Patent
active
045523452
ABSTRACT:
Wood clamp apparatus for preventing the bowing of wood stock during the process of joining a plurality of wood strips including an underlying support for supporting a plurality of longitudinally extending strips of wood which are supported thereon, a pair of clamping blocks, and mechanism mounting one of the clamping blocks for movement toward and away from the other of the clamping blocks to exert edgewise pressure on the strips and clamp the plurality of board strips therebetween, and anti-bowing mechanism for precluding the upward bowing of the strips out of the plane of the strips, when the clamping blocks are in the clamping position, including laterally extending hold-down mechanism spanning the upper surfaces of the strips, and mechanism coupled to the clamps for vertically moving the hold-down mechanism between a raised position for vertically moving the clamping mechanism between a raised inoperative position and a lowered strip-clamping position, for exerting downward pressure on the strips to clamp them to the underlying support, and prevent them from moving upwardly out of the plane of the strips.
REFERENCES:
patent: 1194666 (1916-08-01), Romanowski
patent: 1397961 (1921-11-01), Holmquist
patent: 1602684 (1926-10-01), Lancaster
patent: 1674291 (1928-06-01), Malone
patent: 1730510 (1929-10-01), Jensen
patent: 3024521 (1962-03-01), Polk
patent: 3711920 (1973-01-01), Simmons
patent: 3982740 (1976-09-01), Gutman
patent: 4427191 (1984-01-01), Hess
Benda Steven J.
Kivisto George M.
Kivisto Paul M.
Swartz John J.
Watson Robert C.
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