Title: Centering and holding devices for potter's wheelhead

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.

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Inventors: Giffin, Brian K. (Boulder, CO, US)

Application Number: 925924
Filing Date: 1978-07-19
Publication_date: 1980-09-16
Assignee:
Primary Class(es): 279/114 269/156, 279/133, 279/151, 425/263, 425/459
Other Classes:
US Patent Ref:

82627	Sep, 1868	Munger	279/114.
167127	Aug, 1875	Sandbach	269/233.
648763	May, 1900	La Barge	279/114.
2977128	Mar, 1961	Judelson	279/114.
3814448	Jun, 1974	Buck	279/1.
3994659	Nov, 1976	Takahashi	269/156.

Other Refs: 543733

Mar, 1942	GB

Primary Examiner: Bilinsky, Z. R.
Assistant Examiner:
Attorney: Clark; Russell H.