(under subclass 30.01) Subject matter including means for (a) measuring a tautness or slackness in the sheets or webs and actuating an alarm or signal when the tautness or slackness in the sheets or webs is in excess of or below a pre-established limit, or (b) actuating a device to regulate the tautness or slackness in the sheets or webs for preventing wrinkles.
SEE OR SEARCH CLASS
101, Printing, Dig. 42 for a web tensioning device.
