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1. (WO1989000091) METHOD AND APPARATUS FOR MOUNTING AND FACETING GEMSTONES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1989/000091 International Application No.: PCT/US1988/002126
Publication Date: 12.01.1989 International Filing Date: 23.06.1988
IPC:
B24B 9/16 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
24
GRINDING; POLISHING
B
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
9
Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
02
characterised by a special design with respect to properties of materials specific to articles to be ground
06
of non-metallic inorganic material, e.g. stone, ceramics, porcelain
16
of diamonds, of jewels or the like; Diamond grinders' dops; Dop holders or tongs
Applicants:
SMITH, Charles, R. [US/US]; US
Inventors:
SMITH, Charles, R.; US
Agent:
KENNEDY, Robert, B.; Thomas & Kennedy 100 Galleria Parkway, N.W. Suite 590 Atlanta, GA 30339, US
Priority Data:
068,52801.07.1987US
Title (EN) METHOD AND APPARATUS FOR MOUNTING AND FACETING GEMSTONES
(FR) PROCEDE ET APPAREIL PERMETTANT DE MONTER ET DE FACETTER DES PIERRES PRECIEUSES TAILLEES
Abstract:
(EN) Gemstones (G) are positioned for adherence to a faceting machine dop (16) with apparatus that includes a transparent, target bearing base (20) and x-y centering bars (36/38). A mirror lap wheel (70) is also disclosed to which a lap film (76) is mounted after flush facet contact with the transparent base is observed.
(FR) On positionne des pierres précieuses taillées (G) pour qu'elles adhèrent à un dop (16) de machine à facetter, avec un appareil comprenant une base (20) de support transparente à cible, ainsi que des barres (36/38) de centrage x-y. Est également décrite une roue (70) de polissage à miroir sur laquelle est montée une couche mince (76) de polissage après observation d'un contact affleurant de facette avec la base transparente.
Designated States: JP
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)