Apparatus for bending strip material into toothed shape

Details Apparatus for bending strip material into toothed shape Apparatus for bending strip material into toothed shape

1980-04-25

1982-05-04

Crane, Daniel C.

Metal deforming

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

Clamp structure constitutes sole initial metal-deforming...

72317, 72306, 72322, B21D 1104, B21D 504

Patent

active

043275702

ABSTRACT:
For bending strip material into toothed shape, the strip is introduced once into a pair of toothed jaws and a bending member is moved from one end position to another to bend the strip about one end tooth, one end flank of which is exposed. The strip is removed and then similarly bent about another end tooth, in a preferably mirror-image arranged part of the apparatus, in an opposite bending direction, thereby to form a tooth in the strip. The bending steps are repeated as often as necessary.
The invention is particularly applicable to the forming of a toothed band from a plane sheet metal strip.

REFERENCES:
patent: 317002 (1885-05-01), Ohl
patent: 2213648 (1940-09-01), Fraser
patent: 2434028 (1948-01-01), Wieland
patent: 2699812 (1955-01-01), McCormack et al.
patent: 2734552 (1956-02-01), Yonash
patent: 3319452 (1967-05-01), Rethwish

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