Process for making a piece of hollow jewelry

Details Process for making a piece of hollow jewelry Process for making a piece of hollow jewelry

1974-12-31

1976-08-10

Smith, Al Lawrence

Metal fusion bonding

Process

Using bond inhibiting separating material

219 95, 228190, 228223, 228245, B23K 104

Patent

active

039737160

ABSTRACT:
A process for producing hollow gold jewelry. A temporary substrate of soft iron is plated with precious metal leaf. A strip cut form a bimetallic plate thus plated is drawn, with incorporation of a temporary soft-iron core, to a precious metal covered wire, which can be fabricated into hollow pieces of jewelry, the soft iron being eliminated by an aqueous solution of H.sub.2 SO.sub.4.

REFERENCES:
patent: 440847 (1890-11-01), Meyer
patent: 921722 (1909-05-01), Meyer
patent: 1001669 (1911-08-01), Monnot
patent: 2273609 (1942-02-01), Wrighton et al.
patent: 2284504 (1942-05-01), Wrighton et al.
patent: 2357014 (1944-08-01), Merlub-Sobel
patent: 2369537 (1945-02-01), Crawford
patent: 2423811 (1947-07-01), Goulding
patent: 3693246 (1972-09-01), Novikov et al.

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