Lead-in system for record player

Details Lead-in system for record player Lead-in system for record player

1979-07-09

1981-03-17

Shepperd, John W.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Having power driven transducer assembly

G11B 1706

Patent

active

042563100

ABSTRACT:
A lead-in system for record players. The tone arm is mechanically moved towards a record on the record player turntable by a mechanical actuating means having a tone arm lifter. The tone arm is stopped at a position above the record lead-in groove by tone arm sensing means. Operating means are provided which can simultaneously or individually operate the tone arm lifter, the actuating means and the tone arm sensing means. The swing of the operating member of the actuating means is controlled through a positioning plate which in turn is controlled in its swing range by a selector lever of the tone arm sensing means. The operation of the operating member is thus controlled.

REFERENCES:
patent: 2263979 (1941-11-01), Bruno
patent: 2961242 (1960-11-01), Zimmermann et al.
patent: 2983514 (1961-05-01), Thevenaz
patent: 3385603 (1968-05-01), Knopfle
patent: 3822889 (1974-07-01), Nakagawa
patent: 3847401 (1974-11-01), Evans

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