Method of manufacturing a one-sided or two-sided punching knife

Details Method of manufacturing a one-sided or two-sided punching knife Method of manufacturing a one-sided or two-sided punching knife

1988-12-15

1990-07-03

Parker, Roscoe V.

Metal tools and implements, making

Blank or process

Die

83652, B23P 1524

Patent

active

049381059

ABSTRACT:
A method for fabrication of a one-sided or two-sided punching knife (1) for non-metallic materials such as leather, textiles, paper, etc. with a groove (4) lying on the inside and reinforcing plate (3) engaging into the groove. The reinforcing plate (3) is of non-metallic material and is stamped out by the knife (1) which it is intended to reinforce.

REFERENCES:
patent: 2298041 (1942-10-01), Dedrick
patent: 3459090 (1969-08-01), Prew

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