Method of folding a signature for use in bookbinding

Details Method of folding a signature for use in bookbinding Method of folding a signature for use in bookbinding

1995-03-20

1997-08-12

Han, Frances

Bookbinding: process and apparatus

Process

493357, 281 151, 281 211, B42C 900

Patent

active

056558660

ABSTRACT:
An improved fully folded signature for subsequent use in gathering and combining or binding in bookbinding. The fully folded signature includes uniquely positioned perforated folds and sequences of folding which reduces folding time, alter folded signature orientation during gathering, and eliminates the need for having a conventional backbone.

REFERENCES:
patent: 1159459 (1915-11-01), Wood
patent: 1177806 (1916-04-01), Riegel
patent: 1480236 (1924-01-01), Arelt
patent: 1759191 (1930-05-01), Fulk
patent: 1831246 (1931-11-01), Hitchcock
patent: 3228710 (1966-01-01), Chodorowski
patent: 3843113 (1974-10-01), Schaffer
patent: 5156898 (1992-10-01), McDonald

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