Method of and apparatus for backing book blocks

Details Method of and apparatus for backing book blocks Method of and apparatus for backing book blocks

1991-02-21

1992-04-14

Eley, Timothy V.

Bookbinding: process and apparatus

Process

412 30, B42C 502

Patent

active

051042754

ABSTRACT:
In a method of backing book blocks, simultaneous backing operations are performed on the two halves of the block back by two backing elements which simultaneously execute a rolling movement on the block back in opposite directions starting from its center, so as to compress the printed sheets in its central region, and also execute a tangential sliding, rubbing movement on the book block back, so as to bend the printed sheets over in its side regions.

REFERENCES:
patent: 1959656 (1934-05-01), Cahen
patent: 2455971 (1948-12-01), Bosch
patent: 3258798 (1966-07-01), Hawkes et al.

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