Sheet metal bending brake

Details Sheet metal bending brake Sheet metal bending brake

1980-11-18

1983-06-28

Crane, Daniel C.

Metal deforming

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

Clamp structure constitutes sole initial metal-deforming...

72461, 269304, B21D 504

Patent

active

043898696

ABSTRACT:
A sheet material bending brake of enhanced clamping and bending capacity, by virtue of reinforcing members which both limit the extent of insertion of sheet material into the brake and which support the brake against distortion under heavy clamping and bending loads. The brake includes a plurality of parallel "C" castings extending normally to a bending plane, the castings having clamping and bending means located at their cantilevered ends. Adjustable reinforcing elements engage horizontal surfaces of the castings and project across the throats of the castings to retain the casting legs against separation under excess clamping and bending loads imposed thereon and to limit the distance to which the sheet material can be inserted into the castings.

REFERENCES:
patent: 1128421 (1915-02-01), Diamond
patent: 2422042 (1947-06-01), Roberts
patent: 2478854 (1949-08-01), Webb
patent: 2565965 (1951-08-01), Hartmann
patent: 3020590 (1962-02-01), Siegert
patent: 3260087 (1966-07-01), Guarino
patent: 3983735 (1976-10-01), Berry
patent: 4237716 (1980-12-01), Onisko

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