Stitchers

Details Stitchers Stitchers

1979-12-21

1982-05-11

Bell, Paul A.

Elongated-member-driving apparatus

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

Work support

227152, B25C 504, B27F 719

Patent

active

043289193

ABSTRACT:
A wire stitcher for binding sets of sheets has a driver for driving a staple through a set and an active clincher for bending over the ends of the staple legs to form clinches. The clincher includes an ear having a first groove in a side edge for catching the end of a driven staple leg and initiating bending of the leg and a second, narrower groove in an end edge, which is contiguous with the groove and aligns the leg and completes the bending thereof. A transition groove portion connects the grooves at the junction of the edges.

REFERENCES:
patent: 1169339 (1916-01-01), Maynard
patent: 1612870 (1927-01-01), Leschhorn
patent: 1852060 (1932-04-01), Peterson
patent: 2585807 (1952-02-01), Mackechnie
patent: 2979722 (1961-04-01), Nasmith et al.
patent: 2987729 (1961-06-01), Taunton
patent: 3796364 (1974-03-01), Fritz et al.
patent: 3804317 (1974-04-01), Gelzer
patent: 3981425 (1976-09-01), Megumi
patent: 4194666 (1980-03-01), Spehrley et al.

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