ES211727A1 - Improvements in the acoustic arms of the phonographic devices (Machine-translation by Google Translate, not legally binding)
- Google Patents
Improvements in the acoustic arms of the phonographic devices (Machine-translation by Google Translate, not legally binding)
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Industriaktiebolaget Luxor
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Industriaktiebolaget Luxor
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Publication of ES211727A1publicationCriticalpatent/ES211727A1/en
Holding Or Fastening Of Disk On Rotational Shaft
(AREA)
Abstract
Improvements to the acoustic arms of phonographic devices in order to automatically place the needle in the appropriate initial position on a disc, regardless of its size, when the acoustic arm approaches the disc at a certain distance from the center of the disc, corresponding to at most to the radius of the central sound groove in a disc of the smallest expected size, a support member that cooperates with said arm is located below a horizontal plane that passes through the tip of the needle to come to rest on the disc after which an acoustic arm by means of said support organ in cooperation with the rotation of the disk or with the help of a special mechanism driven by the motor of the monographic apparatus, it undergoes an outward movement until it falls outside the disk characterized in that the support arm and the acoustic arm are mounted in such a way that the latter at least immediately before the part of the movement cycle in which they have to moving outward to the initial playing position of a disc rests on the support arm with its needle separate from the disc after which the support arm with its support member in contact with the disc is moved to a position where the needle in contact with the disc and as the lowering of the support arm continues, it separates from the acoustic arm. (Machine-translation by Google Translate, not legally binding)
ES0211727A1952-10-111953-10-10Improvements in the acoustic arms of the phonographic devices (Machine-translation by Google Translate, not legally binding)
ExpiredES211727A1
(en)
Improvements in the phonographic devices to place the acoustic arm in a correct initial position on the disk to be touched (Machine-translation by Google Translate, not legally binding)
A device for placing the needle of the sound arm of tocadiscos in the initial groove of a disc (Machine-translation by Google Translate, not legally binding)
Improvements introduced in the automatic means of movement and sound for toys in general (Machine-translation by Google Translate, not legally binding)