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US 3,992,018 AGranted
Method and apparatus for use in cleaning a gramophone disc
AssigneeStrathearn Audio Limited
InventorsDexter Robert Plummer, Gerald Avison, Colin Howard Stanwell-Smith, Keith Douglas Ridler
Life of this patent
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Abstract
A combination of a turntable for playing phonograph records, a lid covering the turntable, tone arm for tracking record grooves, and a cleaning element mounted on the lid for movement into contact with a constant annular area on the top side of the record for cleaning. A counterbalance weight controls the pressure of the cleaning element upon the record.
Claims3
In combination:
- a turntable for receiving and rotating a grooved phonograph record;
- a lid for said turntable;
- a tone arm mounted on said turntable for tracking the grooves of said record;
- a cleaning element;
- and
- means for mounting said cleaning element on said lid for movement between a position out of contact with a record on said turntable and a position wherein said element contacts a constant annular area of the top surface of said record and extends along the surface of said record so as to clean the top surface of said record as said record rotates on said turntable.
3 more elements
Dependencies are inferred from the claim text.