Sound recording and reproducing apparatus, and record containing

Details Sound recording and reproducing apparatus, and record containing Sound recording and reproducing apparatus, and record containing

1977-11-22

1979-04-24

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360132, 209554, 274 10D, G11B 1722, G11B 2302

Patent

active

041515722

ABSTRACT:
A sound recording and reproducing apparatus for receiving a two-part cassette-type case containing a stack of records or sheets carrying mechanically or magnetically recorded information. The apparatus includes a record selecting mechanism which is operated for selecting any one of the stacked records in the case for recording or reproduction by separating the stack of records into upper and lower parts and placing the uppermost record of the lower-part of the stack in a position for recording or reproduction while moving the upper-part of the stack up away from the lower-part of the stack. The records or sheets for use with the apparatus have a particular selecting aperture arrangement, and the record selecting mechanism of the apparatus includes selecting rods which are operated to select records according to the particular selecting requirements of the records. The cassette-type case consists of two releasably locked parts, and permits a selection of records by operating the selecting rods.

REFERENCES:
patent: 1360617 (1920-11-01), Brand
patent: 2977125 (1961-03-01), Mallina
patent: 3487390 (1969-12-01), Klinger et al.
patent: 3786454 (1974-01-01), Lissner et al.
patent: 3975169 (1976-08-01), King
patent: 3976301 (1976-08-01), Corbett et al.
patent: 3994017 (1976-11-01), Barkhuff et al.
patent: 4086640 (1978-04-01), Ragle et al.
patent: 4086641 (1978-04-01), Ragle et al.
IBM Technical Disclosure Bulletin, vol. 20, No. 7, Dec. 1977, pp. 2799-2800, "Regular Angular Orientation of Flexible Discs" by Bathun.

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