ES244880A1 - An axis or central asparagus device for gramophones channels (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Shaft or central stud devices for automatic turntable grammars, comprising a plurality of retractable support members on the central axis, for supporting a stack of discs in their operative position, as well as one or more radially outwardly operable supporting members for holding in its operative position, the second lower disk and possibly other disks located above, while the support members are retracted in the spindle to drop the lower disk on the turntable, the supporting member or members being respectively arranged to perform mutually coordinated movements by means of an actuator device provided inside the spindle and displaceable in the longitudinal direction of the latter by the turntable drive mechanism, actuator device which is arranged to cause during an upward movement on the one hand the operation of the member or members of sustain to relate e with the second lower disk and possibly other disks located on it, and on the other hand the retraction of the support members on the spindle, characterized by the fact that the member or members respectively are (are) conditioned to prevent or limit in their operative position, the upward movement of a disk (the lower disk) resting on the support members, at least one scanning member being displaceable in the longitudinal direction of the spindle and arranged to be maintained under the action of a directional force ( spring force) in a protruding position from the spindle below the stack of discs, and to be operated by the actuator during its upward movement by linking against a curved passage on the oblique scan member to the longitudinal axis of the spindle of such a way that the supporting member (or members) will be subjected to a force component directed towards the axis ntral of the spindle due to the force that the explosion member is retracted in the spindle which allows the actuator device to perform its upward movement determined by the mechanism of the turntable to change a disc on the turntable, whereas in the case where no disc exists on the scanning member, the latter will accompany the actuator device beyond the plane in which otherwise the phonographic disk has its lower side, and on this plane will be linked with a stop substantially fixed in relation to the spindle, avoiding said stop the upward movement as well as the radial movement inward of the scanning member whereby the driving device is prevented from completing its upward movement normally required for the change of a disk. (Machine-translation by Google Translate, not legally binding)