Record players

Details Record players Record players

1979-03-15

1981-03-24

Haroian, Harry N.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Specific detail of storage medium support or motion production

G11B 360

Patent

active

042576148

ABSTRACT:
A speed change device for a record player which has a belt drive engaged with a drive pulley on the turntable and with a stepped pulley driver by an electric motor, having a pivotally mounted, belt engaging arm which is acted on by cam means to move the arm in a direction to move the belt outwardly of the stepped pulley, in a direction to move the belt along a path parallel to the axis of the stepped pulley and in a direction to move the belt transversely inwardly of the stepped pulley.

REFERENCES:
patent: 3485498 (1969-12-01), Smith
patent: 3570318 (1971-03-01), Nakadaira

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