Apparatus for holding gemstones to be polished

Details Apparatus for holding gemstones to be polished Apparatus for holding gemstones to be polished

1994-02-04

1995-07-25

Rachuba, Maurina T.

Abrading

Work holder

451389, B24B 336

Patent

active

054357748

ABSTRACT:
A dop, a tang, and the combination of the two structures. The dop has an arc of movement of at least 75 degrees and as much as 95 degrees. The dop has an arcuate surface having an arc of movement of at least 95 degrees and a gear having key ways. The arcuate surface having keys extending substantially the entire arc of movement and the keys interdigitating with the key ways. The tang has a butt end, a neck, a clamp end connected to the neck and opposite the butt end, a clamp connected to the clamp end. The butt end including a platform structure integral to the neck and a support structure having a base. The support structure movably connected to the platform structure by a first adjustment tool. The support structure further including a second plurality of adjustment tools connected to the base. The first adjustment tool capable of being operated independently from the second plurality of adjustment tools so that the platform structure may be moved relative to the support structure and the base may be moved relative to the support structure. The dop and tang being combined by connecting each other via the clamp on the clamp end of the tang.

REFERENCES:
patent: 558734 (1896-04-01), Loesser
patent: 558909 (1896-04-01), Loesser
patent: 1103698 (1914-07-01), Soetens
patent: 2450984 (1948-10-01), Pastore
patent: 2530421 (1950-11-01), Burness et al.
patent: 2534384 (1950-12-01), Spira
patent: 3559349 (1971-02-01), Imahashi
patent: 4201018 (1980-05-01), Pool
patent: 4254587 (1981-03-01), Wilson
patent: 4667446 (1987-05-01), Imahashi

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