Metal deforming – By deflecting successively-presented portions of work during... – By use of work-contacting wiper and moving – work-holding form
Patent
1976-11-15
1978-03-14
Combs, E. M.
Metal deforming
By deflecting successively-presented portions of work during...
By use of work-contacting wiper and moving, work-holding form
72155, 72159, B21D 704
Patent
active
040784118
ABSTRACT:
A clamp die for urging a tube against a rotatable bend die is mounted for limited translational and rotational motion so that its tube receiving cavity will accommodate and receive a portion of a bend previously made in the tube. Thus, one bend may be started closely adjacent a previous bend and little or no length of the straight and as yet unbent tube need extend forwardly of the point of tangency with the bend die in order to permit gripping by the floating clamp die.
REFERENCES:
patent: 2810422 (1957-10-01), Bower
patent: 2871909 (1959-02-01), Bower
patent: 2880780 (1959-04-01), Mackey
patent: 2924261 (1960-02-01), Fredericks
patent: 2974706 (1961-03-01), DeWitt
patent: 2988127 (1961-06-01), Gray
patent: 3155139 (1964-11-01), Hautau
patent: 3261193 (1966-07-01), VanHarten
patent: 3584492 (1971-06-01), Dodge et al.
Combs E. M.
Eaton-Leonard Corporation
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