Method of forming a decorative chain in ductile metal with appro

Details Method of forming a decorative chain in ductile metal with appro Method of forming a decorative chain in ductile metal with appro

1997-02-21

1998-05-26

Jones, David

Chain, staple, and horseshoe making

Chain making

Blanks and processes

59 28, 59 29, 59 30, 59 80, B21L 1500, B21L 1700

Patent

active

057550883

ABSTRACT:
Starting with a helical chain of large links, of the type known as a "transverse figure-of-eight chain" or "transversely assembled figure-of-eight chain" that can be made by machine, after a preliminary twisting operation in which it is reduced to the general form of a strip with rounded edges, that is to say in the so-called "linx" chain configuration, a further deformation is carried out by swaging it in the direction of the greatest dimension of its cross section, in such a way that its cross section is deformed into a generally square figure.

REFERENCES:
patent: 2200828 (1940-05-01), Augenstein
patent: 5542245 (1996-08-01), Lunardon

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