Method of and apparatus for feeding a sectionally perforated paper tissue for use as a casing of ventilated cigarettes

摘要

Phase positions of first and second signal sequences are compared to detect a phase difference. If this difference deviates from a preset value, feed-in speed for perforated paper strip coatings (2) is changed. Each paper strip coating is pulled at a pre-adjusted speed off a rotating storage roller (4) with the help of two delivering rollers (6,8), one of which is driven by a driving mechanism (11) via a toothed belt (7). An Independent claim is also included for the device applying the method.