Guiding record carriers not specifically of filamentary or web form, or of supports therefor

GPHYSICS G11Information storage G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER

G11B17/00Guiding record carriers not specifically of filamentary or web form, or of supports therefor

G11B17/005Programmed access to indexed parts of tracks of operating discs, by guiding the disc G11B17/02Details G11B17/021Selecting or spacing of record carriers for introducing the heads G11B17/022Positioning or locking of single discs G11B17/025of discs which are stationary during transducing operation G11B17/0255flexible discs G11B17/028of discs rotating during transducing operation G11B17/0281by an adapter enabling the centre-pin to receive carriers with large centre hole G11B17/0282by means provided on the turntable G11B17/0283Two or more turntables G11B17/0284by clampers G11B17/0285mounted on a bridge G11B17/0286mounted on a pivotal lever G11B17/0287by permanent connections G11B17/0288by means for moving the turntable or the clamper towards the disk G11B17/03in containers or trays G11B17/032Positioning by moving the door or the cover G11B17/035Positioning by moving the loading station G11B17/038Centering or locking of a plurality of discs in a single cartridge G11B17/04Feeding or guiding single record carrier to or from transducer unit G11B17/0401Details G11B17/0402Servo control G11B17/0404with parallel drive rollers G11B17/0405Closing mechanism G11B17/0407controlling the loading of the record carrier G11B17/0408of non-disc record carrier G11B17/041specially adapted for discs contained within cartridges G11B17/043Direct insertion G11B17/0432adapted for discs of different sizes G11B17/0434with mechanism for subsequent vertical movement of the disc G11B17/0436with opening mechanism of the cartridge shutter G11B17/0438with mechanism for subsequent vertical movement of the disc and opening mechanism of the cartridge shutter G11B17/044Indirect insertion G11B17/046with pivoting loading means G11B17/0463adapted for discs of different sizes G11B17/0466with opening mechanism of the cartridge shutter G11B17/047with sliding loading means G11B17/0473adapted for discs of different sizes G11B17/0476with opening mechanism of the cartridge shutter G11B17/049Insertion of discs having to be extracted from the cartridge prior to recording or reproducing G11B17/05specially adapted for discs not contained within cartridges G11B17/051Direct insertion G11B17/0515adapted for discs of different sizes G11B17/053Indirect insertion G11B17/054with pivoting loading means G11B17/0545adapted for discs of different sizes G11B17/056with sliding loading means G11B17/0565adapted for discs of different sizes G11B17/057specially adapted for handling both discs contained within cartridges and discs not contained within cartridges G11B17/08from consecutive-access magazine of disc records G11B17/10with horizontal transfer to the turntable from a stack arranged with a vertical axis G11B17/12with axial transfer to the turntable from a stack with a vertical axis G11B17/14by mechanism in rotating centre post G11B17/16by mechanism in stationary centre post G11B17/162with means for detecting the diameter of the record G11B17/165with mechanical detecting means G11B17/167with optical detecting means G11B17/18by mechanism operating on the edge of the disc record G11B17/20with transfer away from stack on turntable after playing G11B17/22from random access magazine of disc records G11B17/221with movable magazine G11B17/223in a vertical direction G11B17/225wherein the disks are transferred from a fixed magazine to a fixed playing unit using a moving carriage G11B17/226the magazine consisting of a single rotatable tray carrying the disks G11B17/228Control systems for magazines G11B17/24the magazine having a toroidal or part-toroidal shape G11B17/26the magazine having a cylindrical shape with vertical axis G11B17/28the magazine having a cylindrical shape with horizontal axis G11B17/30wherein the playing unit is moved according to the location of the selected record G11B17/32Maintaining desired spacing between record carrier and head G11B17/34Guiding record carriers during transducing operation