Phonograph tone arm control device

Details Phonograph tone arm control device Phonograph tone arm control device

1979-10-29

1981-04-21

Shepperd, John W.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369216, 369221, G11B 1706

Patent

active

042629128

ABSTRACT:
A device for selectively and automatically moving a phonograph tone arm vertically or horizontally includes a horizontally disposed endless belt which supports the tone arm and transports it in a horizontal direction. The endless belt is raised or lowered by a cam mechanism. Separate reversible, battery powered, direct current motors actuate the endless belt and the cam mechanism. A control box between the power source and the motors includes four push buttons to actuate the motors to move the arm up, down, in or out. The device is intended primarily as a separately purchased accessory to a phonograph or record player.

REFERENCES:
patent: 2047733 (1936-07-01), Harrison
patent: 3870320 (1975-03-01), Torrington
patent: 3910584 (1975-10-01), Hilton
patent: 4049279 (1977-09-01), Kleis
patent: 4121834 (1978-10-01), Yestrebi
patent: 4148492 (1979-04-01), Bachelet

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