Metal deforming – By relatively movable offset tool-faces – Plural
Patent
1981-02-13
1983-07-05
Crosby, Gene
Metal deforming
By relatively movable offset tool-faces
Plural
72319, 72324, 72389, B21D 501
Patent
active
043911196
ABSTRACT:
Apparatus for cutting, swivel-bending and press-bending of sheet material includes a frame having a cross-beam, a member providing a bearing surface, and a clamping beam, the cross-beam having a snaker and the clamping beam having a bending die for press-bending. The frame supports the cross-beam and the clamping beam for movement relative to one another whereby the snaker and die may engage the sheet material to effect press-bending. The frame further supports the clamping beam and bearing surface for movement relative to one another to clamp the sheet material to effect cutting or swivel-bending thereof. A swivel beam and shearing beam are supported by the frame for movement relative to the clamped sheet material independently of movement of the clamping beam.
REFERENCES:
patent: 1259801 (1918-03-01), Stich
patent: 1333201 (1920-03-01), Beatty
patent: 1389880 (1921-09-01), Kraut
patent: 3007508 (1961-11-01), Giordano
patent: 3668919 (1972-06-01), Hongo
patent: 3701276 (1972-10-01), Malmgrer
patent: 3724256 (1973-04-01), Kroetch
patent: 3726120 (1973-04-01), Hugert
patent: 3866522 (1975-02-01), Oswalt
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