Method and apparatus for forming a tube

Details Method and apparatus for forming a tube Method and apparatus for forming a tube

1987-03-26

1988-06-28

Jones, David

Metal deforming

By relatively movable offset tool-faces

Embodying three or more coacting relatively movable tools

72385, 140105, B21D 1107

Patent

active

047530987

ABSTRACT:
A method and apparatus for forming tubes, rods and the like into a serpentine configuration. A plurality of guide rails are mounted on a supporting surface and carriage bars are slideable on the guide rails. A lazy tong linkage having bend forming members mounted thereon is slideably mounted on the carriage bars. A lazy tong linkage assembly is disposed on each side of a center line and expander mechanisms are provided for forcing the two spaced lazy tong linkages apart. Drive means connected to the carriage bars drives the lazy tong linkage to a collapsed position and this movement causes the bend forming members to form a straight tube or rod into a serpentine configuration.

REFERENCES:
patent: 2086736 (1937-07-01), Palmer
patent: 2661787 (1953-12-01), Eidal
patent: 3657914 (1972-04-01), Hart
patent: 3722254 (1973-03-01), Katogir
patent: 4351178 (1982-09-01), Uehara

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