Pressure arm assembly for disc recorders

Details Pressure arm assembly for disc recorders Pressure arm assembly for disc recorders

1981-02-18

1983-07-12

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 86, 360 97, G11B 554, G11B 2504

Patent

active

043934242

ABSTRACT:
A pressure arm assembly is disclosed for use in a data recorder of the type employing a disc recording medium and a carrier supporting a magnetic head. The pressure arm assembly includes a bracket and an upper arm pivotally carried by the bracket for rotation about a transverse axis. A spring biases the arm into engagement with the head carrier. An automatic release lever is carried by the bracket and holds the upper arm in a first nonoperating position and releases the arm so that it may pivot under the action of the spring upon insertion of a disc into the data recorder.

REFERENCES:
patent: Re29380 (1977-08-01), Castrodale et al.
patent: 3529301 (1970-09-01), Hiruta
patent: 3702997 (1972-11-01), Jamieson
patent: 3913137 (1975-10-01), Morgan
patent: 4058844 (1977-11-01), Dirks
patent: 4089029 (1978-05-01), Castrodale et al.
patent: 4151573 (1979-04-01), Tandon et al.
IBM/TDB vol. 18, No. 7, Dec. 1975, pp. 2246-2247, "Read/Write Head Load-Unload Device", by Bailey et al.
IBM/TDB vol. 18, No. 9, Feb. 1976, pp. 3018-3019, "Magnetic Head Load/Unload Device", by Wheeler.

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