Undertaking
Patent
1976-06-29
1978-01-24
Blum, Daniel
Undertaking
1510492, G11B 358
Patent
active
040700283
ABSTRACT:
A cleaning device, for the removal of contaminants from the grooves of gramophone records, is of the kind having a rod-like scouring element adapted to pass down into the groove at least partially towards the base of the groove, a reservoir for supplying cleansing liquid to the scouring element, and means for supporting the scouring element in relation to a rotating record, the scouring element being resiliently bendable and/or the supporting means providing resilient support of the scouring element. A supporting means is so arranged that the longitudinal axis of the scouring element may lie in a plane which is substantially normal to the groove radius at the point of contact, and with the longitudinal axis of the scouring element forming less than a right angle, preferably within the range 30.degree. to 45.degree. and most preferably approximately 35.degree., with the plane of the record downstream of the point of contact, i.e. such that the scouring element is presented in opposition to the direction of relative movement of the record.
REFERENCES:
patent: 1249720 (1917-12-01), Christian
patent: 1256099 (1918-12-01), Baker
patent: 1442680 (1923-01-01), Borst et al.
patent: 2773692 (1956-12-01), Dunnavan
patent: 3486757 (1969-12-01), Loescher
patent: 3572725 (1971-03-01), Murphy
Blum Daniel
Drucker William Anthony
Metrosound Audio Products Ltd.
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