Brake for sheet metal or the like

Details Brake for sheet metal or the like Brake for sheet metal or the like

1979-08-21

1981-08-11

Larson, Lowell A.

Metal deforming

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

Clamp structure constitutes sole initial metal-deforming...

72465, B21D 504

Patent

active

042827353

ABSTRACT:
A brake for bending sheet metal and including a bending leaf which is hinged to the workpiece clamping portions of the break by means of an integrally extruded, pin-less hinge. The bending leaf also is provided with an offset handle, so that the workpiece contacting portion of the bending leaf is of reduced size to fit within a previously formed portion of the workpiece. The hinge design includes interfitting protuberence and recess elements which are assembled by axial sliding movement, but which cannot radially disengage over the entire pivot range of the hinge, which range is sufficient to bend the workpiece over 90.degree..

REFERENCES:
patent: 2136729 (1938-11-01), Stahl
patent: 2160441 (1939-05-01), Peters
patent: 3380280 (1968-04-01), Wise
patent: 3482427 (1969-12-01), Barnack
patent: 4111027 (1978-09-01), Bottomley

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