Advancing webs

Child Classifications

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• B65H 20/005
• B65H 20/02 by friction roller
• B65H 20/06 by friction band
• B65H 20/10 by a feed band against which web is held by fluid pressure, e.g. suction or air blast
• B65H 20/12 by suction roller
• B65H 20/14 by direct action on web of moving fluid
• B65H 20/16 by web-gripping means, e.g. grippers, clips
• B65H 20/20 by web-penetrating means, e.g. pins
• B65H 20/24 by looping or like devices
• B65H 20/26 Mechanisms for advancing webs to or from the inside of web rolls
• B65H 20/28 Mechanisms for delivering webs in superposed folds and refeeding them from the lower end of the folded assemblies
• B65H 20/30 Arrangements for accumulating surplus web (while changing the web roll B65H19/14, B65H19/24)
• B65H 20/36 having means to optionally advance the web either in one longitudinal direction or in the opposite longitudinal direction