Mounting assembly for gem blanks

Details Mounting assembly for gem blanks Mounting assembly for gem blanks

1977-07-07

1979-09-11

Whitehead, Harold D.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

279 1SG, 279 23A, B24B 1900

Patent

active

041670850

ABSTRACT:
A mounting assembly for mounting precious stones such as gem blanks in a cutting and/or polishing machine comprising a self-clamping type chuck in an adjustable threaded engagement with a first inner detent ring provided with divisions for interstices and semi-interstices for defining a plurality of predetermined angular positions, the first detent ring being fitted into a second external detent ring likewise provided with a predetermined division and serving as a guide for the first inner detent ring. The chuck is mounted within a carrier having a bore for a shaft portion of the chuck. The angular position of the chuck is adjusted and locked by the detent ring assembly.

REFERENCES:
patent: 2513138 (1950-06-01), Burness
patent: 2779138 (1957-01-01), Collar
patent: 2877022 (1959-03-01), Parker
patent: 3098327 (1963-07-01), Malin
patent: 3135073 (1964-06-01), Odle
patent: 3163433 (1964-12-01), Ross
patent: 3779566 (1973-12-01), Tarbox

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