Metal deforming – By relatively movable offset tool-faces – With tool motion in fixed path
Patent
1981-02-17
1984-01-10
Crosby, Gene P.
Metal deforming
By relatively movable offset tool-faces
With tool motion in fixed path
72459, B21D 1104
Patent
active
044246994
ABSTRACT:
A tube bender construction for manual operation in bending a tube. The tube bender includes a mandrel defining a bending groove into which the tube is urged by a forming member mounted to the mandrel to swing about a bending axis of the bending groove. The tube to be bent is held against longitudinal movement during the bending operation by a tube holding member. Movement of the forming member about the bending axis is effected by manipulation of a pair of handles. The tube holding member is selectively retained in a retracted position spaced from the tube-retaining disposition by cooperating movement limiting structure on the tube holding member and structure in fixed association with the mandrel.
REFERENCES:
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patent: 2796785 (1957-06-01), Philippe
patent: 2887917 (1959-05-01), Kowal
patent: 3194038 (1965-07-01), Small
patent: 3380283 (1968-04-01), Wilson
patent: 3416345 (1968-12-01), Stanley
patent: 3750447 (1973-08-01), Kowal
patent: 3926028 (1975-12-01), Kowal
Crosby Gene P.
Imperial Clevite Inc.
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