Method and apparatus for forming pipe reinforcing cages and...

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

B - Operations, Transporting

21

F

140/3

B21F 33/00 (2006.01) B21F 27/12 (2006.01)

Patent

CA 1040977

METHOD AND APPARATUS FOR FORMING PIPE REINFORCING CAGES AND LIKE CLOSED LOOP OBJECTS ABSTRACT OF THE DISCLOSURE 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. -1-

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