Method and apparatus for straightening pipe

Details Method and apparatus for straightening pipe Method and apparatus for straightening pipe

1984-05-29

1985-08-13

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72 99, B21D 304

Patent

active

045341974

ABSTRACT:
An apparatus for straightening pipe, round bars or similar elements, wherein the pipe moves between rolls which subjects the pipe to tensile and compressive stresses and forces as it rotates in the straightener apparatus, with the movement of the pipe being effected by rotation of the rolls. Certain of the rolls are vertically adjustable with respect to the pipe and others are horizontally adjustable with respect to the pipe and to each other while certain other rolls are adjustable both vertically and horizontally with respect to the pipe and to each other while the pipe is moving through the apparatus and the straightening operation is in progress, whereby the forces being applied to the pipe may be readily changed in accordance with the bends or other deformity in the pipe to assure that the required forces are applied to the proper pipe areas to accomplish effective straightening of the pipe.

REFERENCES:
patent: 2016038 (1935-10-01), Hartley
patent: 2314953 (1943-03-01), Siegerist
patent: 2757707 (1956-08-01), Siegerist et al.
patent: 2838090 (1958-06-01), Skawden et al.
patent: 2996789 (1961-08-01), Pridy
patent: 3396565 (1968-08-01), Miller
patent: 3446054 (1969-05-01), Pridy
patent: 3706215 (1972-12-01), Horton
patent: 3858425 (1975-01-01), Thompson
patent: 4131005 (1978-12-01), Pridy
patent: 4147046 (1979-04-01), Blattler

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