Tone arm

Details Tone arm Tone arm

1981-11-27

1984-02-28

Stephan, Steven L.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Specified detail of transducer assembly support structure

369244, 369251, G11B 1702, G11B 2116, G11B 310

Patent

active

044344830

ABSTRACT:
A tone arm comprising a lever with a pickup cartridge on its end and a tracking-force setup assembly, a movable base connected to the lever, and a fixed base, the two bases facing each other. Installed between said bases are a vertical pivot attached to one of the bases and cooperating with a spherical thrust bearing in the other base, and a ball making contact with one of the bases and cooperating with a guiding element in the other base. The guiding element may represent an arched slot, two equidistant arched lugs or a spherical hole.

REFERENCES:
patent: 2542534 (1951-02-01), John
patent: 2993698 (1961-07-01), Stanton
patent: 4114895 (1978-09-01), Eckhart

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