Wire stitchers

Details Wire stitchers Wire stitchers

1979-12-21

1982-11-09

Bell, Paul A.

Elongated-member-driving apparatus

With means to support member and/or work relative to driver

Work immobilizer

227155, B42B 400

Patent

active

043580424

ABSTRACT:
A wire stitcher for binding sets of sheets has a driver for driving a staple through a set and an active clincher. In one form the clincher has a drive for the clincher ears which is actuated by the driver. The drive is by a spring which is loaded during a return motion of the clincher housing at the completion of a stitching operation. In another form the clincher ear drive is effected by a cam. Both forms are capable of accommodating variations in set thickness essentially without affecting the timing of the operation of the clincher ears.

REFERENCES:
patent: 2964749 (1960-12-01), Kwasniewski et al.
patent: 2987729 (1961-06-01), Taynton
patent: 3804317 (1974-04-01), Gelzer
patent: 3986533 (1976-10-01), Woodman, Jr.

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