Metal deforming – By relatively movable offset tool-faces – With tool motion in fixed path
Patent
1981-01-30
1983-04-26
Crosby, Gene
Metal deforming
By relatively movable offset tool-faces
With tool motion in fixed path
72459, B21D 702
Patent
active
043809227
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 tube holding structure arranged to clamp the tube against an extended groove portion of the mandrel. Movement of the forming member about the bending axis is effected by manipulation of a pair of handles. Indicia are provided on the mandrel and forming member for indicating the angular extent of a bend provided in the tube as a result of the swinging movement of the forming member about the bending axis. At least one of the first and second indicia are adjustably mounted to provide accurate correlation between the indicia in indicating the bend angular extent.
REFERENCES:
patent: 2796785 (1957-06-01), Philippe
patent: 2887917 (1959-05-01), Kowal
patent: 3126773 (1964-03-01), Taylor
patent: 3448602 (1969-06-01), Stanley
patent: 3729975 (1973-05-01), Del Monica
patent: 3750447 (1973-08-01), Kowal
patent: 3926028 (1975-12-01), Kowal
Crosby Gene
Imperial Clevite Inc.
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