Means for cleaning a band of flexible tape as it moves from a supply reel to a takeup reel in a predetermined path of travel. Included is a pair of cleaning heads 20 and 22 which are engageable with opposite sides of the tape. The heads are initially located in inoperative positions relative to the path...http://www.google.es/patents/US4637088?utm_source=gb-gplus-sharePatente US4637088 - Tape cleaning machine
