Apparatus for making barbed material

Details Apparatus for making barbed material Apparatus for making barbed material

1977-02-22

1977-09-06

Larson, Lowell A.

Metal deforming

By application of fluent medium, or energy field

By kinetic energy of fluid or field

72DIG30, 140 58, B21F 2500, B21D 2614

Patent

active

040459853

ABSTRACT:
Apparatus for making barbed material by tractive magnetic means. A work piece of ferrous or other magnetic material is prepared with slits intersecting its edges. The work piece is passed through a guide channel in the apparatus. Along the divergent sides of the channel are contact pieces magnetized by electromagnets. The contact pieces attract the edges of the strip and deform pointed portions out from the strip. The apparatus includes mechanism for moving the strip in a predetermined manner. This abstract is prepared to facilitate searching and it is not to be construed as a limitation of the invention.

REFERENCES:
patent: 3212311 (1965-10-01), Inoue
patent: 3941164 (1976-03-01), Musgrave

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