Bookbinding method and apparatus

Details Bookbinding method and apparatus Bookbinding method and apparatus

1986-07-14

1987-11-10

Schroeder, Werner H.

Sewing

Special machines

Book sewing

1122623, 112304, 412 35, B42B 204

Patent

active

047049731

ABSTRACT:
A sewing-press for thread-sewing book blocks which are formed from individual book block sections comprises an endless conveyor which transports the block sections into registration with a sewing head. The conveyor includes sewing saddles which support the block sections during sewing, the saddles being articulated to a continuously moving chain so as to have a dwell phase in the sewing region. The sewing needles, after punching the sewing thread through the block section, pivot to directly transfer the thread to the cooperating hook needles which, in turn, draw the thread back through the block section in the form of a loop which is linked to a loop on the preceding block section.

REFERENCES:
patent: 3782306 (1974-01-01), Bosshard
patent: 3797419 (1974-03-01), Depetris
patent: 3797421 (1974-03-01), Sanderson
patent: 4252071 (1981-02-01), Rathert et al.

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