Device for use in polishing table facets of gems

Details Device for use in polishing table facets of gems Device for use in polishing table facets of gems

1979-01-26

1980-12-09

Smith, Gary L.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51216LP, 51229, B24B 916

Patent

active

042376580

ABSTRACT:
A polishing device is described particularly useful for polishing table facets of gems, the device comprising a rotary polishing disc and a plurality of spring fingers mounted in cantilever fashion to overlie the polishing disc, with each spring finger including a pad formed with a socket adapted to receive a gem to be polished by the disc. A pressure bar urged by an electromagnet overlies the upper faces of all the spring fingers to apply a preselected, substantially uniform pressure to them during the polishing operation.

REFERENCES:
patent: 515595 (1894-02-01), Linden
patent: 1523766 (1925-01-01), Gray
patent: 1954422 (1934-04-01), McIntyre
patent: 2452696 (1948-11-01), Stabler
patent: 2797534 (1957-07-01), Rouse
patent: 3043060 (1962-07-01), Bell
patent: 3404491 (1968-10-01), Emair
patent: 3863396 (1975-02-01), Holt

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