Folding apparatus for four or six etchings

Details Folding apparatus for four or six etchings Folding apparatus for four or six etchings

1978-09-05

1980-08-19

Burr, Edgar S.

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B65H 4516

Patent

active

042180538

ABSTRACT:
In a folding apparatus for a rotary printing press having a form cylinder with four or six etchings, with a folding cylinder having a plurality of spaced fastening devices on the circumference thereof and a collecting cylinder associated with the folding cylinder with folding blades, grippers or point group cassettes thereon, the improvement comprising, the fastening devices being divided into two groups, each with a number of fastening devices, with the ratio of the number of the fastening devices in each group being a mixed number. Each fastening device is provided with a cam follower and a cam wheel is positioned within the folding cylinder with cams thereon for selectively rendering the folding devices of one of the groups inoperative.

REFERENCES:
patent: 2306248 (1942-12-01), Zuckerman
patent: 2706628 (1955-04-01), Huck

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