Metal deforming – By use of non-deforming work-gripping clamp and relatively... – Clamp structure constitutes sole initial metal-deforming...
Patent
1984-02-03
1985-12-10
Crane, Daniel C.
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
Clamp structure constitutes sole initial metal-deforming...
16361, B21D 504
Patent
active
045571325
ABSTRACT:
A sheet bending brake comprising a first longitudinally extending member having a clamping surface, a clamping member movable toward and away from the clamping surface for holding a workpiece in position for bending and a second member extending longitudinally with respect to said first member. Each of the first and second members have substantially the entire length of the longitudinal edges thereof formed with longitudinally spaced intermeshing integral projections, the projections on the second member having a plurality of aligned openings and the projections on the first member having a plurality of aligned openings comprising slots extending axially with respect to the longitudinal axis of said member. A hinge pin extends through the openings of the second member and the slots of the first member. The second member has a workpiece contacting portion spaced from the projections. The slots have a configuration such that as the second member is moved relative to said first member to bend a workpiece, the hinge pin is guided along said slots such that the contacting portion of said second member remains substantially in the same position relative to the workpiece.
REFERENCES:
patent: 1426776 (1922-08-01), Riecken
patent: 3380280 (1968-04-01), Wise
patent: 4116034 (1978-09-01), Ruediger
patent: 4240279 (1980-12-01), Rhoades
patent: 4282735 (1981-08-01), Break
patent: 4383430 (1983-05-01), Klaus
patent: 4445356 (1984-05-01), Chubb et al.
Crane Daniel C.
Tapco Products Company Inc.
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