Metal tubing bender

Details Metal tubing bender Metal tubing bender

1988-09-23

1990-03-20

Bray, W. Donald

Metal deforming

By use of roller or roller-like tool-element

Comprising tool movable relative to stationary work-portion...

29132, 72215, 72219, B21D 703

Patent

active

049090593

ABSTRACT:
A metal tubing bender forms arcs into metal tubing by engaging a swing-arm mounted roller against a clamped tubing section and rotating the roller through an arc necessary to place the desired degrees of bend into the tubing. The tubing is clamped against a forming plate that is provided with a peripheral groove of uniform radius and serves as a die for the forming operation. The forming plate stands out from a mounting plate and the roller swing arm fits between the mounting plate and the forming plate for stability of operation.

REFERENCES:
patent: 784471 (1905-03-01), Church
patent: 1239165 (1917-09-01), Davis et al.
patent: 1682149 (1928-08-01), Robertson
patent: 2153935 (1939-04-01), Neukirch
patent: 2414926 (1947-01-01), Burke
patent: 3444716 (1969-05-01), Martin
patent: 3606786 (1971-09-01), Taylor
patent: 3732721 (1973-05-01), Cusimano
patent: 4055065 (1977-10-01), Whetstone, Jr. et al.
patent: 4091845 (1978-05-01), Johnson
patent: 4351178 (1982-09-01), Uehara et al.

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