Work holders – Holder mounted for movement – With plural means for changing holder positions
Patent
1986-05-20
1988-05-17
Schmidt, Frederick R.
Work holders
Holder mounted for movement
With plural means for changing holder positions
269 76, 269 97, B23Q 104
Patent
active
047445521
ABSTRACT:
A craftsman's tool for supporting jewelry includes an L-shaped frame pivotally coupled to a stationary support such as a work bench or the like, and a collar rotatably connected to the frame removably carries a housing which receives a shiftable member presenting movable clamping jaws for releasably holding an item of jewelry. A handrest fixed to the frame swings to an out-of-the-way position as the frame is pivoted relative to the support for improving access as may be needed to the jaws or the item of jewelry supported thereby. A third hand device for positioning an object on the item of jewelry supported by the jaws is fixedly connected to the frame so that the frame can be pivoted as necessary without disturbing the positional relationship between the object held by the third hand device and the jewelry item carried by the jaws. The tool is constructed to enable the jewelry item supported by jaws of the tool to be selectively shifted about any one of three mutually perpendicular axes of rotation, as well as along a straight upright axis as may be desired, and finger-actuated elements permit precise selective adjustment of the degree of resistance to movement of the housing relative to the support.
REFERENCES:
patent: 851292 (1907-04-01), Kapp
patent: 2019789 (1935-11-01), Mahannah
patent: 2586636 (1952-02-01), Fischer et al.
patent: 3024018 (1962-03-01), Manz
Glendo Corporation
Hartman Judy J.
Schmidt Frederick R.
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