Work holders – Plural holders to hold workpieces relative to each other – Workpieces normal to each other
Patent
1978-03-09
1979-07-31
Watson, Robert C.
Work holders
Plural holders to hold workpieces relative to each other
Workpieces normal to each other
269 47, 269244, B25B 514
Patent
active
041627857
ABSTRACT:
A clamp for exerting joining force perpendicular to the joint line of a miter joint includes first and second sets of parallel pins defining first and second planes respectively, each set comprising at least two pins, all the pins being substantially equal in length, the first plane being parallel to and co-extensive with the second plane, and means for applying force in a direction perpendicular to the two planes to move the first and second sets of pins toward each other. In a preferred embodiment, first and second members hold the first and second sets of pins respectively and a threaded cylindrical shaft passes through holes in the members; the hole in the first member is threaded to receive the shaft threads and the hole in the second member is unthreaded and just large enough for the shaft to rotate freely therein, the second member being fixed in axial position on the shaft. In such embodiment rotation of the shaft moves the first member axially along the shaft toward the second member.
REFERENCES:
patent: 831486 (1906-09-01), Taft
patent: 842555 (1907-01-01), Johnson
patent: 879547 (1908-02-01), Holter
patent: 949096 (1910-02-01), Stetson
patent: 1222204 (1917-04-01), Hansen
patent: 1359597 (1920-11-01), Holman
patent: 2753902 (1956-07-01), Klee
Long Charles J.
Watson Robert C.
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