Method and apparatus for making jewelry bands

Details Method and apparatus for making jewelry bands Method and apparatus for making jewelry bands

1976-06-29

1977-08-09

Lanham, C.W.

Metal deforming

Process

Tube making or reshaping

72471, B21D 1102

Patent

active

040402851

ABSTRACT:
Jewelry bands of various polygonal and arcuate shapes are made by forming an annular blank band to the desired shape. Shaping is achieved by forcing the blank rearward and onto an elongated male member having a tapered front portion which merges into a rear portion with a cross-section of the desired shape. The blank is forced rearward by pressing the male member into an aperture in a female member which is shaped to conform to and receive the rear portion of the male member. Compressing the formed blank against the rear portion of the male member makes it conform more closely to the desired shape, and eases removal of the shaped band from the male member.

REFERENCES:
patent: 140422 (1873-07-01), Krementz
patent: 1725592 (1929-08-01), Mertes
patent: 1898374 (1933-02-01), Kvarnstrom
patent: 2535470 (1950-12-01), Welshman

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