Browse Prior Art Database

Magnetic Disk File

IP.com Disclosure Number: IPCOM000093408D
Original Publication Date: 1967-Sep-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 20K

Publishing Venue

IBM

Related People

Cresswell, DJ: AUTHOR [+2]

Abstract

This is a section through a magnetic disk file with the magnetic reading and writing heads removed. A disk 1 is mounted for rotation on control shaft 2 contained in closed housing 3. During rotation, air between a number of disks 1 rotates due to viscous drag and flows into outlet duct 4. The resulting lowering of pressure between the disks causes air to be drawn into the file from inlet duct 5. Thus the same air continuously circulates around the file keeping the disks at a uniform temperature. Since housing 3 is common to all disks, a cold disk introduced into the file is soon brought up to the temperature maintained. The circulating air is filtered by filter 6.

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Magnetic Disk File

This is a section through a magnetic disk file with the magnetic reading and writing heads removed. A disk 1 is mounted for rotation on control shaft 2 contained in closed housing 3. During rotation, air between a number of disks 1 rotates due to viscous drag and flows into outlet duct 4. The resulting lowering of pressure between the disks causes air to be drawn into the file from inlet duct 5. Thus the same air continuously circulates around the file keeping the disks at a uniform temperature. Since housing 3 is common to all disks, a cold disk introduced into the file is soon brought up to the temperature maintained. The circulating air is filtered by filter 6.

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