Method and apparatus for forming pipe reinforcing cages and like

Details Method and apparatus for forming pipe reinforcing cages and like Method and apparatus for forming pipe reinforcing cages and like

1975-01-20

1976-02-24

Larson, Lowell A.

Wireworking

Fabrics, working

140112, 214 17, 219 56, B21F 3300

Patent

active

039398790

ABSTRACT:
Apparatus for forming a closed loop object such as a pipe reinforcing cage from wire fabric includes an infeed carriage assembly receiving sections of wire fabric and transporting the fabric to a pair of gripping assemblies. Each gripping assembly includes rotatable gripping jaws mounted on a slide in turn positioned on a carriage for motion toward and away from each other such that opposite ends of the fabric can be brought together while rotating the gripping jaws to form a cylindrical cage. Speed control means are provided for assuring the gripping jaws advance toward each other in synchronism with the rotation of the jaws thereby forming a perfect cylindrical cage. Welding means are provided for welding the ends of the cage so formed while held in position by the gripping jaws.

REFERENCES:
patent: 2041235 (1936-05-01), Darbaker
patent: 3370150 (1968-02-01), Nordgren
patent: 3561501 (1971-02-01), Fauteux

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