Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Tape record
Patent
1983-12-20
1986-12-30
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Tape record
226190, 242 76, 36013021, G11B 5008, G11B 1500
Patent
active
046333479
ABSTRACT:
A damped inertia roller for reducing tape flutter in a magnetic tape transport comprises an outer cylindrical hollow shell which encloses a centrally bored cylindrical flywheel rotatably mounted about an axial shaft. The shaft is rigidly fixed to a closed end face of the hollow shell, and a resilient damping washer is sandwiched between an end of the flywheel and the closed end face of the shell. A second resilient damping washer is sandwiched between the other end of the flywheel and a disc shaped retaining member. The shaft is recessed within the flywheel bore, and has a threaded axial hole in its recessed end face.
A retaining screw passing through the retaining member and the second washer is threaded into this axial hole, and adjustment of its tightness provides a means of adjustably compressing the washers to control the damping of the roller.
REFERENCES:
patent: 3326440 (1967-06-01), Barnes
patent: 3595584 (1971-07-01), Camras
Modern Instrumentation Recording, pp. 1, 70-75, published by EMI Technology Inc. in 1978 (2nd ed).
EMI Limited
Heinz A. J.
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