Apparatus for bending a jacketed tube

Details Apparatus for bending a jacketed tube Apparatus for bending a jacketed tube

1978-12-22

1980-12-16

Crane, Daniel C.

Metal deforming

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

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

72369, B21D 905

Patent

active

042389453

ABSTRACT:
An elongated bending core is inserted coaxially in an elongated outer tube. The core has at least one recess which extends along the elongation of the core. An elongated inner tube is inserted into the recess so that the inner and outer tubes together constitute a jacketed tube. The jacketed tube is bent about an axis which is normal to the longitudinal axis thereof to thereby bend the inner and outer tubes simultaneously.

REFERENCES:
patent: 2962077 (1960-11-01), Condiff
patent: 3546917 (1970-12-01), Paine
patent: 4009601 (1977-03-01), Shimizu
patent: 4137743 (1979-02-01), Schwarze

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