B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
164/29
B65H 35/08 (2006.01) B26F 1/10 (2006.01)
Patent
CA 1084834
A B S T R A C T O F T H E D I S C L O S U R E A method for providing a running web with a perforation pattern fitting into printed image units successively printed on the web. The method includes the steps of performing a longitudinal perfora- tion in a separate longitudinal perforator and performing a trans- verse perforation in a transverse perforator, wherein the perforation is divided to be carried out by a plurality of separate units. The pitch of the transverse perforation rows in the longitudinal direc- tion of the web is controlled by changing the relative position of the transverse perforation units with respect to each other in accordance with the desired perforation pattern. The transverse perforator can be formed by a plurality of transverse perforation units each having a die roll in cooperation with two needle rolls placed diametrically at opposite sides of the die roll.
298798
Kirby Eades Gale Baker
Oy Wartsila Ab
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