Sound reproducing unit tone arm

Details Sound reproducing unit tone arm Sound reproducing unit tone arm

1977-01-17

1978-07-18

Aegerter, Richard E.

Undertaking

G11B 310

Patent

active

041011341

ABSTRACT:
A voice or sound unit adapted for use on toys and the like has a mechanical linkage system with a joint capable of transmitting sound indicia while isolating the tone arm from any absorption of stylus movement. The tone arm can employ flexure hinges to insure a constant force on the stylus. A planetary gear coupling system provides a unique drive transmission to either a single turntable or a pair of concentric turntables. If a pair of turntables are used, they can be relatively rotated to combine a large number of sound sequences.

REFERENCES:
patent: 2369087 (1945-02-01), Thompson et al.
patent: 2624584 (1953-01-01), Rockwell
patent: 3165320 (1965-01-01), Ryan
patent: 3529834 (1970-09-01), Renoux

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