Browse Prior Art Database

Reading-Recording Head

IP.com Disclosure Number: IPCOM000098604D
Original Publication Date: 1959-Jun-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 26K

Publishing Venue

IBM

Related People

French, WK: AUTHOR

Abstract

The magnetic head H is dynamically responsive to variations in thickness or relative position of a recording media 1 which are encountered during reading or recording operations and automatically and continuously compensates for such variations.

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Reading-Recording Head

The magnetic head H is dynamically responsive to variations in thickness or relative position of a recording media 1 which are encountered during reading or recording operations and automatically and continuously compensates for such variations.

The compensation is achieved by providing flexible secondary pole pieces 2 and 3 which respectively extend in an arcuate manner from the primary pole pieces 4 and 5. The respective lower ends of pole pieces 2 and 3 are proximately joined together by means of a non-magnetic backing strip 6. A flux path is thus established through the pole pieces 2 and 3 with a gap defined in the drawing by a non-magnetic insert 7.

The head H may be rigidly mounted so that the flexible pole pieces 2 and 3 rest lightly against the recording media 1 at all times or so that the flexible pieces 2 and 3 rest against the recording media 1 only when it is stationary and be forced a slight distance away from the recording surface by air pressure created during movement of the recording surface.

The flexible pole pieces 2 and 3 are firmly retained against the primary pole pieces 4 and 5 above the section lines 9-9 and 10-10 in order to maintain a normal flux path of constant length.

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