Arrangement for centring, aligning and retaining a rotating...

G - Physics – 11 – B

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352/32.3

G11B 7/00 (2006.01) G11B 17/02 (2006.01) G11B 17/028 (2006.01)

Patent

CA 1135849

30.10.1978 1 PHN 9139 ABSTRACT: "Arrangement for centring, aligning and retaining a rotating record." An arrangement for centring, aligning and re- taining a rigid disc such as a rapidly rotating video disc in an operating position, comprising a centring device mounted on a drive spindle, which device co- operates with a central disc hole in the disc, compris- ing a disc aligner mounted on the drive spindle for aligning the disc in a plane perpendicular to the axis of rotation of the drive spindle in the operating posi- tion of said disc, and comprising a disc loader for loading the disc towards the disc aligner. The disc aligner is rigidly connected to the drive spindle and the centring device comprises a plurality of resilient centring members which cooperate with the wall of the disc hole and which are radially movable between a rest position and an operating position which is situated nearer the axis of rotation of the drive spindle.

328299

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