Tube bender

Details Tube bender Tube bender

1985-10-03

1987-01-27

Bray, W. D.

Metal deforming

By relatively movable offset tool-faces

With tool motion in fixed path

72383, 72460, B21D 905

Patent

active

046386653

ABSTRACT:
A bending machine is provided to form a multiplicity of predetermined types of bends within several planes in elongated, heavy gauge workpieces of various sizes and shapes by pressure between a stack of dies and a pair of swingable anvil plates carried by elongated wings each of which is, in turn, swingable to adjust the distance between the anvils. Slide rails for the workpiece are readily accessible for loading and unloading. The die stack includes releasable vise-like clamps which grip the workpiece to preclude distortion during bending, and the stack can be raised or lowered to provide proper alignment of preselected die units of the stack.

REFERENCES:
patent: 2100961 (1937-11-01), Jones et al.
patent: 3918286 (1975-11-01), Whitehead
patent: 4004445 (1977-01-01), Larson
patent: 4005593 (1977-02-01), Goldberg
patent: 4485664 (1984-12-01), Richards

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