Method of faceting gemstones

Details Method of faceting gemstones Method of faceting gemstones

1988-09-06

1991-01-01

Rose, Robert A.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51326, 51DIG34, B24B 100

Patent

active

049809954

ABSTRACT:
A flat facet is polished with a lap film mounted to the lap last used in prepolishing. In this manner lap surface irregularities and plane angle are maintained. This has been discovered to avoid the creation of scratches in the facet.

REFERENCES:
patent: 2024303 (1935-12-01), Obrig
patent: 2544940 (1951-03-01), Rittenbusch et al.
patent: 3144737 (1964-08-01), Faas
patent: 3818641 (1974-06-01), Long
patent: 3959935 (1976-06-01), Stoppacher
patent: 4240232 (1980-12-01), Chwae
patent: 4258508 (1981-03-01), Wilson
patent: 4274232 (1981-06-01), Wylde
patent: 4733502 (1988-03-01), Braun

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