Process for the production of decorative articles in gold or oth

Details Process for the production of decorative articles in gold or oth Process for the production of decorative articles in gold or oth

1995-01-25

1996-09-03

Lavinder, Jack W.

Metal founding

Process

Shaping a forming surface

164 34, 164 35, B22C 900, B22C 902

Patent

active

055515037

ABSTRACT:
The process consists of starting from a lace or embroidery in cotton or synthetic fibers, applying to the model wax, resins or varnishes capable of increasing the size, then coating the model with gypsum and then introducing the coated model into a furnace. The heat destroys the model and leaves a cavity which has the shape of the model. The precious metal is introduced into the cavity in the molten form. Finally the article is allowed to solidify and the gypsum is crushed. The decorative article may be used for necklaces, bracelets or similar materials.

REFERENCES:
patent: 4557312 (1985-12-01), Gonzales
patent: 4793045 (1988-12-01), Singer

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