Work holders – Holder mounted for movement – With plural means for changing holder positions
Patent
1979-05-25
1980-06-24
Watson, Robert C.
Work holders
Holder mounted for movement
With plural means for changing holder positions
269 82, 269104, 269266, 269296, B25B 514
Patent
active
042091667
ABSTRACT:
A universal jack and work positioning mechanism comprises a support structure having a base with a jack shaft being vertically movable relative to the support structure for vertical positioning of the work piece to be supported by the mechanism. An upwardly diverging cradle is connected to the shaft and is positioned to receive and provide primary support for a conduit work piece. A plurality of leveling arms extend from the lower portion of the cradle and orient various bottom and side positioning leveling screws in such manner that the tubular work piece is engaged at its bottom and side portions and is accurately positionable through manipulation of the leveling adjustment elements. A pivotal orienting element is supported by one of the leveling arms and is so manipulatable as to position a universal orientable adjustment element to various selective positions thus allowing adaptability of the mechanism for support and adjustment of different kinds of tubular work pieces such as pipes, tee fittings, 45.degree. and 90.degree. elbow fittings and the like.
REFERENCES:
patent: 979305 (1910-12-01), Hunt
patent: 1465330 (1923-08-01), Ardner
patent: 2045307 (1936-06-01), O'Connell
patent: 2458370 (1949-01-01), Geddes
patent: 3139277 (1964-06-01), Mears
patent: 3602492 (1971-08-01), Petrie
Matthews Guy E.
Watson Robert C.
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