Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1979-11-15
1982-01-26
Eddleman, ALfred H.
Dynamic magnetic information storage or retrieval
Record medium
In container
242199, 360 73, 360 963, G11B 1528, G11B 1544, G11B 2304
Patent
active
043131441
ABSTRACT:
A tape cassette includes an internal drive system which is engageable by a drive capstan of a tape cassette machine and which drives a recording tape of the cassette at a speed which is higher or lower than the speed at which the tape would be driven by the capstan alone. Where the tape speed is reduced, the playing time of the cassette is increased and the cassette is therefore less wasteful for speech recordings where a high tape speed is not necessary. The drive system can comprise a drive belt which is driven by the capstan and which passes around a pair of rollers, the tape being driven by means of one of the rollers. Alternatively, a rotatable member (such as a roller, a tubular sleeve or a gear) can be engaged by the capstan, and the tape is then driven by means of the rotatable member.
REFERENCES:
patent: 2844369 (1958-07-01), Singer
patent: 3507435 (1970-04-01), Hathaway
patent: 3511449 (1970-05-01), Mathus et al.
patent: 3620467 (1971-11-01), Isom
patent: 3708135 (1973-01-01), Lace
patent: 3791600 (1974-02-01), Tsukhgoshi
patent: 3862729 (1975-01-01), Staar
patent: 4138700 (1979-02-01), Russell
patent: 4170029 (1979-10-01), Kahn
Brown Charles E.
Eddleman Alfred H.
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