File forming press

Details File forming press File forming press

1975-11-18

1977-02-01

Duzan, James R.

Metal deforming

By relatively movable offset tool-faces

72399, 72403, 72466, 72469, B21D 502

Patent

active

040055973

ABSTRACT:
A press to form files that are made of sheet material, the press being capable of using tools that may be substituted one for another according to the desired shape of the file being made.

REFERENCES:
patent: 58963 (1866-10-01), Shipton et al.
patent: 152523 (1874-06-01), Secor
patent: 545758 (1895-09-01), Aiken
patent: 1850679 (1932-03-01), Leis
patent: 1895401 (1933-01-01), Simonsen et al.
patent: 1909930 (1933-05-01), Ridder
patent: 3505852 (1970-04-01), Sassak

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