Stitchers

Details Stitchers Stitchers

1979-12-21

1982-11-09

Bell, Paul A.

Elongated-member-driving apparatus

With control means responsive to sensed condition

Work-responsive

83205, 227155, B42B 400

Patent

active

043580408

ABSTRACT:
A wire stitcher includes a cutter for cutting a length of wire W from a supply thereof and a stitcher head having a former and driver for forming and driving the length of cut wire for binding a set SS of sheets. The length of cut wire which is presented to the head by a wire advancing and cutting mechanism. The mechanism comprises a first wire gripper, which advances the wire through a fixed distance, and a compensating mechanism comprising a second wire gripper and a cutter block. These are moved towards each other to increase the wire length symetrically relative to the driver as a function of set thickness by an actuator connected to a set clamping device.

REFERENCES:
patent: Re5696 (1873-12-01), Blake et al.
patent: Re13967 (1915-08-01), Juengst
patent: 1048134 (1912-12-01), Cosgrain
patent: 1450164 (1923-04-01), Bates
patent: 3753523 (1973-08-01), Perlman

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