Bending brake hemmer

Details Bending brake hemmer Bending brake hemmer

1980-04-24

1982-09-28

Crane, Daniel C.

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Clamp structure constitutes sole initial metal-deforming...

72319, B21D 504

Patent

active

043511767

ABSTRACT:
A bending attachment for installation in the jaws of a conventional portable bending brake for the additional bending of a previously partially bent sheet material workpiece. The bending attachment includes a horizontally oriented elongated base section which can be mounted in the jaws of the conventional portable bending brake. A workpiece holding sectional vertically upstands from the proximal edge of the base section and is in a substantially inverted U-shaped cross section.

REFERENCES:
patent: 316461 (1885-04-01), Huber
patent: 505567 (1893-09-01), Douglas
patent: 992038 (1911-05-01), Noyes
patent: 2016981 (1935-10-01), Berliner et al.
patent: 2302958 (1942-11-01), Jensen
patent: 3559444 (1971-02-01), Blazey et al.
patent: 3592037 (1971-07-01), Van Cleave
patent: 3913370 (1975-10-01), Break
patent: 4092841 (1978-06-01), Chambers

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