Record players

Details Record players Record players

1974-06-21

1976-03-30

Aegerter, Richard E.

Undertaking

274 1E, G11B 1529, G11B 1544

Patent

active

039470423

ABSTRACT:
A record player including a turntable driven by a motor through a jockey pulley interposed between the turntable rim and a spindle driven by the motor in which the spindle is stepped to provide a number of portions of different diameter and the portions themselves being slightly tapered so that adjustment of the pulley axially of each portion permits a fine adjustment of the speed of rotation of the turntable, and in which the jockey pulley is mounted on a speed change arm which can be moved to move the jockey pulley axially of the spindle by a cam means driven by a manually operable drive element, and wherein a manually operable pitch adjusting member is also provided for rotation about the same axis as the manually operable drive element to cause axial movement of the cam means relative to the drive element and hence of the jockey pulley relative to the spindle to permit fine adjustment of the speed of rotation of the turntable.

REFERENCES:
patent: 2611038 (1952-09-01), Graham
patent: 3008720 (1961-11-01), Aoki
patent: 3065972 (1962-11-01), Aoki

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