Centering and holding devices for potter's wheelhead

Details Centering and holding devices for potter's wheelhead Centering and holding devices for potter's wheelhead

1978-07-19

1980-09-16

Bilinsky, Z. R.

Chucks or sockets

Radially reciprocating jaws

Spiral cam or scroll actuated

269156, 279 1L, 279 1Q, 279 1SJ, 425263, 425459, B23Q 306, B23B 3100

Patent

active

042225779

ABSTRACT:
The centering and holding device of the invention is a relatively simple but practical piece of equipment for attachment to a potter's wheelhead for centering and holding the pot such as a vase, bowl, plate or the like on the said wheelhead. The top plate of the device is provided with sliding arms for engaging and holding the pot and the body portion of each arm extends through the top plate to project below for co-action with spiral grooves formed in the surface of the bottom plate. When the plates are rotated relatively to each other the arms move radially and to a like extent.

REFERENCES:
patent: 82627 (1868-09-01), Munger
patent: 167127 (1875-08-01), Sandbach
patent: 648763 (1900-05-01), La Barge
patent: 2977128 (1961-03-01), Judelson
patent: 3814448 (1974-06-01), Buck
patent: 3994659 (1976-11-01), Takahashi

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