Browse Prior Art Database

Flexible Disk Pack Addressing

IP.com Disclosure Number: IPCOM000085327D
Original Publication Date: 1976-Mar-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Mossbrugger, HG: AUTHOR [+2]

Abstract

An internally pressurized flexible disk pack comprises disks 1 separated by pressure relieving porous spacers 2. Separation of an adjacent pair of disks 1 to permit entry of a transducer between them at the periphery of the pack is achieved by an air jet nozzle 3 incorporated in an internally movable piston. Pressure in the air supply line to nozzle 3 varies with axial position of the nozzle, in the manner shown, and is at a minimum when the nozzle 3 is perfectly aligned with a spacer 2.

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Flexible Disk Pack Addressing

An internally pressurized flexible disk pack comprises disks 1 separated by pressure relieving porous spacers 2. Separation of an adjacent pair of disks 1 to permit entry of a transducer between them at the periphery of the pack is achieved by an air jet nozzle 3 incorporated in an internally movable piston. Pressure in the air supply line to nozzle 3 varies with axial position of the nozzle, in the manner shown, and is at a minimum when the nozzle 3 is perfectly aligned with a spacer 2.

By detecting such pressure variations in micropressure transducer 4, a series of impulses corresponding to movement of nozzle 3 past the disks 1 can be produced. Such impulses can be counted to determine the position of nozzle 3 within the disk stack. In this way, nozzle 3 can be aligned with a desired disk spacer 2 for internal splitting of the pack.

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