Tape deck

Details Tape deck Tape deck

1976-05-03

1978-03-14

Smith, Jr., David

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

360 73, H02P 516

Patent

active

040793001

ABSTRACT:
A tape drive that includes a capstan and tachometer mounted on the same shaft with a printed circuit motor. The capstan and tachometer are mounted to be accurately concentric with one another and the tachometer is sensed at the same angular position as the point of tangential engagement of tape and capstan and at the same radius, and controls the peripheral velocity of the capstan there so that even though the capstan may be eccentric relative to the true motor turning center, the tape speed is constant. The armature disc of the motor is accurately mounted in a plane normal to the shaft, and upon a cushioning element, to reduce brush contact errors.

REFERENCES:
patent: 3005582 (1961-10-01), Brede
patent: 3168664 (1965-02-01), Bost
patent: 3179831 (1965-04-01), Moressee et al.
patent: 3890641 (1975-06-01), Mo et al.
patent: 3978521 (1976-08-01), Langer et al.

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