DEVICE FOR FACETING PRECIOUS STONES Russian patent published in 1994 - IPC

Abstract RU 2014230 C1

FIELD: jeweller's art. SUBSTANCE: device comprises hollow casing secured on holder, microsetting mechanism mounted on casing, and crystal holder with adjustable stone-clamping means and a support for stone handled. Crystal holder has a rod for fastening it inside the casing. Device has additionally a bushing installed in casing between said casing and crystal holder rod. Microsetting mechanism is made as a screw pair linked kinematically with bushing. EFFECT: improved design. 2 cl, 2 dwg

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RU 2 014 230 C1

Authors

Laskin V.F.

D'Jakov N.B.

Dates

1994-06-15—Published

1991-02-04—Filed