Process for obtaining composite hollow members from variegated longitudinal strips, embodied with or without a removable core
OwnerValtiero Tizziinventor
Life of this patent
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Abstract
The invention relates to a process by means of which to obtain hollow members from variegated longitudinal strips, longitudinally assembled. The hollow member obtained may either remain hollow or be provided with a removable core, and can be embodied in precious or semi-precious metals, or their alloys; strips of such materials are utilized to make up the various components of the hollow member's nominal cross section, and the end-product is a new type of multi-colored semi-finished article for use in the manufacture of high-class and costume jewelry, as well as in other fields such as the production of objects of art and/or general interior design.
Claims9
A process for producing composite hollow members from variegated longitudinal strips comprising the steps of:
- preparing a number of longitudinal moldings by drawing or pressing said moldings so as to provide folded lips along the edges of said moldings, said folded lips being capable of being interlocked and flattened, wherein at least one of said moldings is a destructible molding formed from a chemically-destructible metallic material;
- arranging said moldings adjacent to each other so that said folded lips become interlocked lips;
- lodging solder between said interlocked lips;
- flattening said interlocked lips under pressure so as to join said moldings into a tubular-shaped hollow member with a tubular wall and so as to create a variegated surface;
- reducing the thickness of said tubular wall to a predetermined annular cross section
- threading a core member into said hollow member such that discrete lengths of said hollow member can be formed into links, said core member being formed from a chemically-destructible metallic member;
- fusing the ends of said links following concatenation by floating said solder in order to form chains or necklaces;
- and
- removing said destructible molding and said core member by chemically treating said links.
Dependencies are inferred from the claim text.