Browse Prior Art Database

Integral Transverse Margin Erase Magnetic Recording Head

IP.com Disclosure Number: IPCOM000093665D
Original Publication Date: 1966-Jan-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 32K

Publishing Venue

IBM

Related People

McClung, DH: AUTHOR

Abstract

This ferrite head construction provides transverse margin erase. This construction permits erasure of the area immediately adjacent to a track as it is written. Thus, any information that existed in that area will not be read during subsequent accesses to that track. The head includes a first core part 1 separated from a second core part 2 by a shim to form a read-write gap between them. Generally L-shaped core parts 3 and 4 are each bonded at one extremity to part 1. The opposite extremities of parts 3 and 4 overlap the lateral surfaces of part 2 and are separated from 2 by shims to provide identical erase gaps B. Coil G is wound around parts 3 and 4.

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Integral Transverse Margin Erase Magnetic Recording Head

This ferrite head construction provides transverse margin erase. This construction permits erasure of the area immediately adjacent to a track as it is written. Thus, any information that existed in that area will not be read during subsequent accesses to that track. The head includes a first core part 1 separated from a second core part 2 by a shim to form a read-write gap between them. Generally L-shaped core parts 3 and 4 are each bonded at one extremity to part 1. The opposite extremities of parts 3 and 4 overlap the lateral surfaces of part 2 and are separated from 2 by shims to provide identical erase gaps B. Coil G is wound around parts 3 and 4. With this configuration, the write flux is directed through gaps B ahead of or behind the read write gap, thus effecting a transverse erasure of the margins of the written track.

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