Metal deforming – By tool-couple embodying nonplanar tool-face – With complementary tool-faces
Patent
1975-12-29
1977-04-12
Mehr, Milton S.
Metal deforming
By tool-couple embodying nonplanar tool-face
With complementary tool-faces
291606, B21D 1702, B21D 2202
Patent
active
040167410
ABSTRACT:
A hand powered machine forms jewelry blanks into domed bracelets between guided toroidal convex hammer and concave anvil. The shaping of the bracelet is by a combined pressing and pounding action.
REFERENCES:
patent: 264541 (1882-09-01), Lambert
patent: 1187141 (1916-06-01), Goldberg et al.
Coffee Wendell
Mehr Milton S.
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