Apparatus and method for forming barbed tape

Details Apparatus and method for forming barbed tape Apparatus and method for forming barbed tape

1979-06-13

1981-12-08

Larson, Lowell A.

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

With cutting

72307, 72308, 72335, 29 72, B21F 2500, B21D 2804

Patent

active

RE0308145

ABSTRACT:
A machine having blanking, barb forming and bending stations is provided for making a coil of metal tape from a substantially planar linear strip of metal stock wherein such strip is fed in sequence to the stations in a single pass through the machine to respectively edge notch the strip into barbs, upset the barbs into inclined relation to the plane of the strip and then edge bend the strip in the plane of the strip to form it into identically angularly displaced adjoining linear segments of equal length to make a generally annular coil of barbed metal tape.
The method of this invention features forming spaced openings along a longitudinal axis of a substantially planar linear strip of metal stock, positioning the strip by means of its openings and edge bending the strip in the plane of the strip adjacent its openings to form the strip into a coil having identical angularly displaced adjoining linear segments.

REFERENCES:
patent: 704521 (1902-07-01), Dolan et al.
patent: 1040745 (1912-10-01), Olson
patent: 2948049 (1960-08-01), Wilson
patent: 3916958 (1975-11-01), Uhl

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