Cabbing device for gemstones

Details Cabbing device for gemstones Cabbing device for gemstones

1978-10-23

1980-05-06

Whitehead, Harold D.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

B24B 916

Patent

active

042010187

ABSTRACT:
A machine device for generating a convex surface, especially for the formation of the front surface of a cabochon, inherently symmetrical without irregularities and in a range of sizes both spheroid and ovoid, and comprising a manually operable dop-stick to which workpieces are replaceably attached to be shaped about two selectively distinct radii, by advanceably offering the workpieces into grinding engagement with an abrasive wheel.

REFERENCES:
patent: 1605142 (1926-11-01), Redinger
patent: 2735246 (1956-02-01), Ponting
patent: 2982058 (1961-05-01), Maitenaz
patent: 3439456 (1969-04-01), Bailey
patent: 3449198 (1969-06-01), Spragg
patent: 3468067 (1969-09-01), Larson
patent: 3688452 (1972-09-01), Stevens
patent: 3849945 (1974-11-01), Lindzy
patent: 4010577 (1977-03-01), Henry

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