Metal deforming – By deflecting successively-presented portions of work during... – By use of work-contacting wiper and moving – work-holding form
Patent
1987-07-14
1989-07-04
Combs, E. Michael
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
048438596
ABSTRACT:
A pipe bender comprising a base block, a pipe feed mechanism mounted on the base block for feeding a pipe longitudinally thereof, and two pipe bending sections mounted on a common support frame connected to the base block to be reciprocable in directions perpendicular to the pipe. The bending sections each include a fixed die assembly and a clamp die assembly. The clamp die assemblies of the respective pipe bending sections are swingable in opposite directions.
REFERENCES:
patent: 2709473 (1955-05-01), Grace et al.
patent: 4022045 (1977-05-01), Riha
patent: 4201073 (1980-05-01), Eaton
patent: 4313324 (1982-02-01), Pearson
patent: 4485658 (1984-12-01), Stewart et al.
Chiyoda Kogyo Co., Ltd.
Combs E. Michael
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