Pipe bending machines

Details Pipe bending machines Pipe bending machines

1993-06-28

1994-07-12

Jones, David

Metal deforming

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

By use of work-contacting wiper and moving, work-holding form

72157, B21D 704

Patent

active

053277589

ABSTRACT:
Improvements in pipe bending machines, constructed in a general frame with a die holder shaft that has on its perimeter a flat face and several concave faces angularly out of phase, which produces the bending of pipes, in conjunction with a top die with a displacement guided by means of a motorized device, carrying means for locking in working position.

REFERENCES:
patent: 1741935 (1929-12-01), Harvey
patent: 2223015 (1940-11-01), Hathorn
patent: 3619882 (1971-11-01), Sobanski et al.
patent: 3805552 (1974-04-01), Heald
patent: 4006993 (1977-02-01), Woerlee
patent: 4098096 (1978-07-01), Chard et al.
patent: 4502314 (1985-03-01), Wunsch
patent: 4986104 (1991-01-01), Caporusso et al.
patent: 5022249 (1991-06-01), Caporusso et al.

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