Wire stitchers

Details Wire stitchers Wire stitchers

1979-12-21

1982-06-22

Bell, Paul A.

Elongated-member-driving apparatus

With means to form member prior to penetration of work

With offset tools to deform members

227 87, B27F 721

Patent

active

043358411

ABSTRACT:
A wire stitcher for binding sheets into sets in which cut lengths of wire are formed into staples about an anvil by a former and the formed staples are driven by a driver. The wire is gripped against the anvil by the driver during forming and the staple is supported with the aid of the anvil during driving. The driver has a two-stage action in which a first stage motion operates to grip the wire against the anvil during forming, the driver motion being arrested during forming, and a second stage motion acts following forming to effect driving. The movement of the driver and the former is effected by a continuous travel of an input lever.

REFERENCES:
patent: 263391 (1882-08-01), Coop et al.
patent: 445139 (1891-01-01), Harper
patent: 456415 (1891-07-01), Howenstine
patent: 804864 (1905-11-01), Kennedy
patent: 1371388 (1921-03-01), Nasmith
patent: 1880327 (1932-10-01), Merz et al.
patent: 2285489 (1942-06-01), Blanchard
patent: 2979722 (1961-04-01), Nasmith et al.

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