Novel lap for the polishing of gem stones

Details Novel lap for the polishing of gem stones Novel lap for the polishing of gem stones

1982-06-07

1988-11-22

Kazenske, E. R.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51314, 51283R, B23F 2103

Patent

active

047855878

ABSTRACT:
There is provided a scaife for the polishing of gemstones wherein the abrasive material is embedded in a matrix of a material maintained in the solid state, which material has a high enthalpy of phase transition from solid to liquid. Suitable materials are frozen water, frozen water/organic liquid mixtures such as water/alkanol mixtures and suitable metals or metal alloys. There is also provided a process for the polishing of gemstones which comprises a process for the polishing of gemstones which comprises establishing a layer of abrasive embedded in a suitable solid matrix in or on the surface of a rotatory plate and polishing said gemstones, overheating being prevented by the high enthalpy of solid/liquid transition of the said matrix.

REFERENCES:
patent: 193306 (1877-07-01), White
patent: 1213164 (1917-01-01), Graat
patent: 2419739 (1947-04-01), Spina
patent: 2429961 (1947-10-01), Rakowitzky
patent: 2641879 (1953-06-01), Dalrymple
patent: 3745722 (1973-07-01), Balz

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