Sound reproducing unit

Details Sound reproducing unit Sound reproducing unit

1977-01-17

1978-07-18

Haroian, Harry N.

Undertaking

G11B 378

Patent

active

041011350

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: 2353370 (1944-07-01), Sears
patent: 2467627 (1949-04-01), Olson
patent: 3082006 (1963-03-01), Ryan
patent: 3801110 (1974-04-01), Licitis
patent: 3904210 (1975-09-01), Licitis

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