1976-12-02
1978-05-02
Aegerter, Richard E.
Undertaking
274 23A, 274 39A, G11B 360, G11B 310
Patent
active
040870952
ABSTRACT:
A record player system wherein a hollow turntable platter is supported with an internal inserted supporting body and incorporated with a driving means mounted on said supporting body. During operation, said turntable platter is slightly floated on said supporting body with compressed air induced into the interior of said hollow turntable platter through a conduit formed within said supporting body. A transversely elongated tonearm is fixed on a cylindrical slider which is slidably mounted on a straight horizontally elongated hollow tube which is slightly departed from a turntable surface at an adjacent location to said turntable platter. Compressed air is induced into said hollow tube via a conduit means and discharged from plural orifices arranged on a peripheral surface of said hollow tube to press an interior wall surface of said slider, and then preventing contact of said slider's interior wall with said peripheral surface of said hollow tube to eliminate resistances of tonearm's operation of a straight-line tracking.
REFERENCES:
patent: 3479038 (1969-11-01), Eisner
patent: 3482232 (1969-12-01), Farrand et al.
patent: 3751044 (1973-08-01), Sawada
Aegerter Richard E.
Shepperd John W.
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