Browse Prior Art Database

Magnetic Head

IP.com Disclosure Number: IPCOM000073701D
Original Publication Date: 1971-Jan-01
Included in the Prior Art Database: 2005-Feb-22
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Schaps, JE: AUTHOR

Abstract

A nonmagnetic diamond housing provides fragile sections of thin-film magnetic read/write head sections with relatively indestructable surfaces and square edges. When magnetic heads are constructed of material with different hardnesses, magnetic tape will abrade the softer materials and break down corners at material junctions. Magnetic head signal output thereby decreases because the distance between the tape and the gap increases. Wear blocks of diamond prevent this problem.

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Magnetic Head

A nonmagnetic diamond housing provides fragile sections of thin-film magnetic read/write head sections with relatively indestructable surfaces and square edges. When magnetic heads are constructed of material with different hardnesses, magnetic tape will abrade the softer materials and break down corners at material junctions. Magnetic head signal output thereby decreases because the distance between the tape and the gap increases. Wear blocks of diamond prevent this problem.

Read/write (R/W) sections are clamped between housing supports by tie bolts. Center and end diamonds set in the housing provide a contact surface for magnetic tape moving across the head. The diamonds are arranged in tracks corresponding to tracks of the R/W sections. Slots separating the tracks provide shielding and air bleeding passages. The read and write sections may be spaced about 50 mils apart, the tracks are about 40 mils wide, and the R/W sections are about 200 microinches thick.

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