Arrangement for perforating a stripe

Details Arrangement for perforating a stripe Arrangement for perforating a stripe

1977-02-02

1978-05-16

Schran, Donald R.

Metal working

Expanded metal making

72186, B21D 3104

Patent

active

040890902

ABSTRACT:
An arrangement for perforation a stripe of a ductile material such as plastics or a ductile metal such as aluminum or copper and for forming a lattice of the stripe comprises a preferably rotating cutting roll, which cooperates with a holding-up tool. The cutting roll has at least one axially aligned row of cutting plates. Each cutting plate has a cutting edge and a partly cylindrical part, which forms a part of the cylindrical mantle surface of the cutting roll. In cooperation with the holding-up tool the cutting edges of the cutting plates make a row of slots in the stripe, whereupon the walls of the slots are extended in the longitudinal direction of the stripe, while the partly cylindrical parts of the cutting plates hold other parts of the stripe against the holding-up tool so as to form a lattice without changing the width of the stripe.

REFERENCES:
patent: 1526769 (1925-02-01), Bradford
patent: 3276096 (1966-10-01), McAleer et al.
patent: 3760470 (1973-09-01), Felsenthal

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