Guide drum

Details Guide drum Guide drum

1985-12-17

1988-01-12

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Head accessory

G11B 1560

Patent

active

047195282

ABSTRACT:
A guide drum comprises a stationary drum having a tape guide for guiding a magnetic tape along a predetermined tape path and a rotary drum rotatably provided with respect to the stationary drum. The rotary drum has at least one magnetic head for recording and/or reproducing a signal on and/or from the magnetic tape which is wrapped spirally around an outer peripheral surface of the guide drum over a predetermined angular range. The guide drum comprises first and second tapered parts which are formed with reference to a reference position having a specific height from a lower edge of the rotary drum. A diameter of an outer peripheral surface of the first tapered part gradually decreases toward the stationary drum, and a diameter of an outer peripheral surface of the second tapered part gradually decreases in a direction away from the stationary drum.

REFERENCES:
patent: 3930270 (1975-12-01), Tanigawa
patent: 4395745 (1983-07-01), Aarts

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