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Browse Prior Art Database

Self Guiding Bearing

IP.com Disclosure Number: IPCOM000084569D
Original Publication Date: 1975-Dec-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 28K

Publishing Venue

IBM

Related People

Hammond, CH: AUTHOR [+3]

Abstract

The device as depicted in the figure shows a mandrel 10 with head wheel 12. Magnetic tape 14 helically wraps around mandrel 10 and is guided by upper guide bearing 16 and lower guide bearing 18.

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Self Guiding Bearing

The device as depicted in the figure shows a mandrel 10 with head wheel
12. Magnetic tape 14 helically wraps around mandrel 10 and is guided by upper guide bearing 16 and lower guide bearing 18.

When magnetic tape 14 is stepped, F(F) is the force acting on the tape towards a capstan, not shown. Likewise, F(B) is the force acting on the tape toward a vacuum column, not shown. In order to accelerate or step the tape 14, an increased force delta F(A) is applied as shown. This force tends to move the tape in the direction shown by arrow 20.

By skewing lower guide bearing 18, a guiding force proportional to the tension during a step is produced. This force is sufficient to offset the misguided force which tends to drive magnetic tape 14 in the direction shown by arrow 20.

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