Browse Prior Art Database

Storage Unit with Several Diskettes

IP.com Disclosure Number: IPCOM000050126D
Original Publication Date: 1982-Sep-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Rausch, F: AUTHOR

Abstract

A magnetic storage unit comprises a pack of several diskettes 1a to 1d which are arranged directly above each other. In a radial direction 2, each diskette is provided with a slot S. Magnetic heads 3, 4, arranged on arms 5, 6, are inserted into these slots and thus are adjustable to the selected side of the diskette.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 71% of the total text.

Page 1 of 2

Storage Unit with Several Diskettes

A magnetic storage unit comprises a pack of several diskettes 1a to 1d which are arranged directly above each other. In a radial direction 2, each diskette is provided with a slot S. Magnetic heads 3, 4, arranged on arms 5, 6, are inserted into these slots and thus are adjustable to the selected side of the diskette.

Fig. 1 shows part of a diskette 1 with a slot S extending in a radial direction 2. Fig. 2 is a side view of four diskettes 1a to 1d arranged above each other. The diameter of these diskettes is staggered so that it increases from diskette 1a to diskette 1d. The diskettes are fixed to hub 7 and are rotatable about an axis 8. Drive is effected by motor 9 driving a friction drive wheel 11 through shaft 10. Friction drive wheel 11 engages the extreme free outer surface of diskette 1b which is to be accessed by magnetic head 3 or 4. Fig. 2 shows, by broken lines, arm 6' with magnetic head 4' as it accesses the lower edge of diskette 1b in a position further to the outside (viewed radially).

To access a particular side of a diskette, all slots S of diskettes 1a to 1d are initially arranged above each other. Arm 5 or 6 with its head 3 or 4 is shifted perpendicularly to the plane of the diskette in the direction of arrow 12 until it is in the position of the selected side of the diskette. Then friction drive wheel 11 is put on the outer surface of the diskette. By switching on motor 9, the diskette to be accessed is caused...