Work holders – Holder mounted for movement – Means for position lock
Patent
1993-03-08
1994-05-24
Watson, Robert C.
Work holders
Holder mounted for movement
Means for position lock
269 20, B23Q 104
Patent
active
053141741
ABSTRACT:
A ball and socket type universal workpiece support is provided that is locked in its normal state. A balanced system of spring force is provided to lock the positioner in any position chosen by the operation. It will remain in the selected position until fluid pressure is provided to release it for movement to another position.
REFERENCES:
patent: 4143866 (1979-03-01), Bergman
patent: 4564179 (1986-01-01), Hollingsworth
patent: 4957359 (1990-09-01), Kruse et al.
patent: 4974802 (1990-12-01), Hendren
Hyde Edward R.
Watson Robert C.
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