SINGLE FACER WITH SMALL INTERMEDIATE CORRUGATING ROLL

Canada Patent

PATENT NO 2218537
APP PUB NO CA-2218537-A1
SERIAL NO

2218537

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Abstract

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The labyrinth path in the corrugating nip of a single facer is substantially reduced by utilizing a small diameter intermediate corrugating roll (12) captured between a pair of larger diameter conventional corrugatin g rolls (10, 11). The two large diameter rolls capture the smaller roll and prevent bending thereof under corrugating loads. The corrugator may be operated at high speeds without the adverse increase in labyrinth path and web tension characteristic of large diameter corrugating rolls.

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