Method of making improved concrete reinforcing elements

Details Method of making improved concrete reinforcing elements Method of making improved concrete reinforcing elements

1975-12-16

1976-11-30

Mehr, Milton S.

Metal deforming

By deflecting successively-presented portions of work during...

With cutting of work or product

72181, 29DIG40, B21D 516, B21D 5336

Patent

active

039941507

ABSTRACT:
This specification discloses a method of and apparatus for forming concrete reinforcing elements having enlarged ends and also discloses a reinforced composite incorporating such elements. In one embodiment the enlarged ends are formed by folding the edges of a strip of sheet metal onto itself while in another form the enlarged ends are formed by edge rolling a strip. In both cases the reinforcing element is formed by transversely shearing the strip after its edge has been modified. The reinforcing elements as described above are shown to have a greater pull-out resistance than plain elements.

REFERENCES:
patent: 326152 (1888-09-01), Richards
patent: 691253 (1902-01-01), Fay
patent: 1343753 (1920-06-01), Sloper
patent: 1606473 (1926-11-01), Killion

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