Automatic record changer

Details Automatic record changer Automatic record changer

1975-03-05

1977-03-15

Aegerter, Richard E.

Undertaking

G11B 1500

Patent

active

040120473

ABSTRACT:
A record changer for phonograph records is fully automated for playing a rality of records but uses a relatively small number of parts. The record changer includes a rotatable turntable, a spindle for holding a stack of records above the turntable, a tone arm assembly for playing the records, and a changer mechanism which is operably connected with the spindle and the tone arm assembly. The changer mechanism includes a cam wheel which is rotatable by the turntable when the record changer is started and after each record has been played, and a slide arm connected to the cam wheel for moving the tone arm to a start position. When the last record has been played, stop members movable by the cam wheel turn the unit off. The tone arm assembly includes a friction clutch which cooperates with a record size indicator mechanism to move the tone arm to the proper start position depending upon the size of the records being played.

REFERENCES:
patent: 2803465 (1957-08-01), Dobrogowski et al.
patent: 2818263 (1957-12-01), Dale
patent: 2974962 (1961-03-01), Dale
patent: 3162449 (1964-12-01), Hansen
patent: 3163428 (1964-12-01), Laufer
patent: 3342499 (1967-09-01), Fukuda
patent: 3490772 (1970-01-01), Dennis
patent: 3697087 (1972-10-01), Takahashi

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