Control element adapted to prevent an external-flange angle...

Details Control element adapted to prevent an external-flange angle... Control element adapted to prevent an external-flange angle...

2006-06-27

2006-06-27

Crane, Daniel C. (Department: 3725)

Metal deforming

By deflecting successively-presented portions of work during...

By use of deflectors arranged to bend work longitudinally of...

Reexamination Certificate

active

07065998

ABSTRACT:
A control element (1) adapted to prevent an external-flange angle iron from being twisted during its bending is applied to a variable-radius bending machine, on which an angle iron (10) is worked by deformation by at least two couples of lower co-axial rollers (7, 8, 7′, 8′) and at least a third upper roller (9), the one flange (11) of the angle iron (10) being clamped by the lower rollers (7, 8, 7′, 8′), and the other flange (12) facing outward. The control element (1) includes a frustoconical head (2) pivoted on a stem (3) designed to be received into a co-axial housing hole that is frontally performed on the support element (13) of a cylindrical control roller (14), having three degrees of freedom, of the bending machine.

REFERENCES:
patent: 629496 (1899-07-01), Diescher
patent: 702836 (1902-06-01), Weber
patent: 924758 (1909-06-01), Gabriel
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patent: 3704616 (1972-12-01), Taira
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patent: 301 505 (1954-09-01), None
patent: 0 879 655 (1998-11-01), None
patent: 715 897 (1954-09-01), None

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