Title: Displacing apparatus

Abstract: Apparatus for advancing magnetic tape with respect to a recording head through small, discrete, and uniform displacement increments. A direct current drive motor has an armature shaft that drives a displaceable member. Controls develop signals that energize and deenergize the motor. Included in these controls are a speed responsive tachometer and an acceleration control utilizing a saturable amplifier.

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Inventors: Burr, Robert P. (Huntington, NY, US)

Application Number: 102419
Filing Date: 1970-12-29
Publication_date: 1976-01-27
Assignee: Kollmorgen Corporation (Glen Cove, NY)
Primary Class(es): 388/847 388/910, 388/930
Other Classes:
US Patent Ref:

3137453	Jun, 1964	Wooldridge	242/55.
3158426	Nov, 1964	Doersam et al.	346/20.
3167777	Jan, 1965	Zagorites et al.	346/74.
3185364	May, 1965	Kleist	226/24.
3326440	Jun, 1967	Barnes et al.	226/188.

Other Refs:
Primary Examiner: Dobeck, Benjamin
Assistant Examiner:
Attorney: