198399 ⎘
Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function; Driving; Starting; Stopping; Arrangements for control or regulation thereof; Driving of both record carrier and head driving or moving the head in a direction which cuts across the direction of travel of the tape, e.g. for helicoïdal scanning with head driven in a plane, cyclically around an axis, e.g. on headwheel with provision for information tracking by moving the transducing part of the head relative to the headwheel, in the direction of the scanning movement, e.g. for skew or time base correction using signals recorded in tracks disposed in parallel with the scanning direction