Bending mandrel arrangement

Details Bending mandrel arrangement Bending mandrel arrangement

1983-07-18

1984-10-30

Crane, Daniel C.

Metal deforming

By relatively movable offset tool-faces

With tool motion in fixed path

72319, 72482, B21D 7022

Patent

active

044793758

ABSTRACT:
A bending mandrel arrangement for use in a machine for the simultaneous bending of a plurality of parallel reinforcing rods for concrete comprises a work support beam on which the rods rest, a trackrail mounted on said work support and having an upper open grooveway and a vertical wall, a plurality of mandrels having arms which engage in said trackway and abut said vertical wall so that the mandrel arms can be simultaneously urged into clamping engagement with said trackrail, and a bending bar which is movable around said mandrel arms to bend said rods.

REFERENCES:
patent: 348423 (1886-08-01), Shackleton
patent: 1721698 (1929-07-01), Krueger
patent: 2190839 (1940-02-01), Jensen
patent: 2302958 (1942-11-01), Jensen
patent: 3120257 (1964-02-01), Webers et al.
patent: 3350912 (1967-11-01), Smith, Jr.

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