Browse Prior Art Database

Rotating Recording Head

IP.com Disclosure Number: IPCOM000097833D
Original Publication Date: 1961-Aug-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 56K

Publishing Venue

IBM

Related People

Cronquist, DH: AUTHOR

Abstract

A magnetic recording head 11 is rotated relative to a stationary record surface 12 (B) and is moved into operative air bearing relation with the record surface by a combination of mechanical and centrifugal forces.

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Rotating Recording Head

A magnetic recording head 11 is rotated relative to a stationary record surface 12 (B) and is moved into operative air bearing relation with the record surface by a combination of mechanical and centrifugal forces.

Head 11 is mounted in a head support block 13 which is secured by leaf spring 14 to main mounting block 16. The assembly including head 11, mounting blocks 13, 16 and spring 14 are driven by rotatable shaft 17 which is also movable axially relative to recording surface 12. When the assembly is not rotating, gravity causes head 11 and support block 13 to assume the deflected position (solid lines in B).

To start a recording operation, shaft 17 is rotated so that centrifugal force produces flexing of spring 14 to cause head 11 and block 13 to assume the dotted line position shown in B. The next step in loading the head toward the record surface is to move the head and shaft assembly axially toward record surface 12 to cause head 11 and block 13 to assume the position closely adjacent to record surface 12 (C). The final loading of the head and support block in operative relationship to record surface 12 is achieved through a spring 18 carrying a ball 19 at its end. A spring loading member 21 is cammed to the position shown in D to flex spring 18 in the direction indicated to press ball 19 against block 13 and position head 11 in gliding, air bearing relation to record surface 12.

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