Metal working – Gem and jewel setting
Patent
1980-01-14
1981-03-31
Shay, F. Barry
Metal working
Gem and jewel setting
291606, 63 27, 72379, 428571, 428580, 428582, 428584, 428597, 428598, 428599, B23P 500, B21D 703, A44C 1702, A44C 1704
Patent
active
042584582
ABSTRACT:
A blank for a stone setting comprising a base and prongs extending radially therefrom, said blank having a planar lower side and a notched upper side, the notches at the upper side defining at the junctions of the prongs with the base hinges which enable bending the prongs upwardly relative to the base to form a stone cage and at the distal ends thereof a seat for the stone and tangs for fixing the stone against the seat. A method of making a setting including making the blank by striking it from malleable sheet metal, removing parts of the sheet metal from around the bank, stripping the blank from the sheet metal, using a punch to force it into a die for bending the prongs and tangs at their notched areas to shape it into a cage. A further method of setting a stone by seating a stone against the seat at the top of the cage and bending the tangs against the stone.
REFERENCES:
patent: 203675 (1878-05-01), Tucker
patent: 261542 (1882-07-01), Feeley
patent: 608362 (1898-08-01), Dover
patent: 802326 (1905-10-01), Sadler
patent: 1205175 (1916-11-01), Dodds
patent: 1484628 (1924-02-01), Dinhofer
patent: 1782329 (1930-11-01), Webster
patent: 2188310 (1940-01-01), Price
patent: 2626454 (1953-01-01), Richardson
patent: 2944330 (1960-07-01), Swick
B. B. Greenberg Co.
Shay F. Barry
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