DEP0046908DA - Device for one-sided erasing of double-sided magnetographic records - Google Patents
Device for one-sided erasing of double-sided magnetographic recordsInfo
- Publication number
- DEP0046908DA DEP0046908DA DEP0046908DA DE P0046908D A DEP0046908D A DE P0046908DA DE P0046908D A DEP0046908D A DE P0046908DA
- Authority
- DE
- Germany
- Prior art keywords
- sided
- double
- erasing
- sound
- magnetographic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Description
Zum einseitigen Löschen mehrerer, nebeneinander liegender oder aller Tonbahnen einer doppelseitig bespielten Magnettonschallplatte wird ein Elektromagnet vorgeschlagen, der mit Wechselstrom gespeist wird, und dessen Pole sich in bekannter Weise durch einen Spalt getrennt gegenüberstehen. Die Spaltlänge des Elektromagneten überdeckt jedoch nicht nur eine Tonbahn, sondern sie ist gleich der Breite mehrerer nebeneinander liegender oder aller Tonbahnen der Schallplatte.For one-sided erasure of several adjacent or all sound tracks of a double-sided recorded magnetic sound record, an electromagnet is proposed which is fed with alternating current and whose poles face each other in a known manner separated by a gap. However, the gap length of the electromagnet not only covers one sound track, but it is equal to the width of several adjacent or all sound tracks on the record.
Die richtige Stellung des Spaltes auf bzw. über der Schallplatte kann durch gleitflächenförmige Ausbildung der Polschuhe erreicht werden, bzw. erleichtert werden. Ferner kann dies durch Zusammenbau des Elektromagneten mit Gleitflächen erreicht werden.The correct position of the gap on or above the record can be achieved or facilitated by the design of the pole shoes in the form of sliding surfaces. Furthermore, this can be achieved by assembling the electromagnet with sliding surfaces.
Claims (2)
Family
ID=
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