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Spacer for Flexible Magnetic Discs having Centrally Originated Pressurized Airflow

IP.com Disclosure Number: IPCOM000081565D
Original Publication Date: 1974-Jun-01
Included in the Prior Art Database: 2005-Feb-28
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Kelsof, HR: AUTHOR

Abstract

It has been observed that rotation of laminate packs of flexible magnetic storage discs (oxide coated MYLAR* 0.0015'' thickness, 12'' diameter) is beneficially stabilized, when air is blown radially outward through the spaces between laminations. It is also known that radial circulation of air is more uniform when ring-shaped (small diameter) porous mesh spacer elements are located between the discs. It has been observed presently that such spacers can be economically formed by stamping woven sheets of polyester thread bolting cloth (TET/KRESSILK #PE85 obtained from Tobler, Ernst & Traber, Inc., or equivalent). * Trademark of E. I. du Pont de Nemours & Co.

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Spacer for Flexible Magnetic Discs having Centrally Originated Pressurized Airflow

It has been observed that rotation of laminate packs of flexible magnetic storage discs (oxide coated MYLAR* 0.0015'' thickness, 12'' diameter) is beneficially stabilized, when air is blown radially outward through the spaces between laminations. It is also known that radial circulation of air is more uniform when ring-shaped (small diameter) porous mesh spacer elements are located between the discs. It has been observed presently that such spacers can be economically formed by stamping woven sheets of polyester thread bolting cloth (TET/KRESSILK #PE85 obtained from Tobler, Ernst & Traber, Inc., or equivalent). * Trademark of E. I. du Pont de Nemours & Co.

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