G - Physics – 11 – B
Patent
G - Physics
11
B
352/31.1
G11B 23/08 (2006.01) G11B 23/087 (2006.01)
Patent
CA 1243778
ABSTRACT OF THE DISCLOSURE A magnetic tape cartridge which utilizes tape guide rollers with crowned operative surfaces prevents migration of the magnetic tape along the operative sur- faces due to misalignment between perpendicularity of the central axis of the tape guide roller in the direction of travel of the magnetic tape. By crowning the operative surface, the distance between the opposing inner faces of the shoulders of the tape guide rollers can be expanded. By preventing migration of magnetic tape against either of the two opposing faces of the tape guide rollers' shoul- ders, damage which could occur by contact between the edges of the magnetic tape and these faces is prevented. Although some incidental contact between the edges of the magnetic tape and the faces on the shoulders of the tape guide rollers is normally expected in tape cartridge design, when this contact occurs at high speeds and under significant tape tension, severe damage can be caused to these edges of the magnetic tape. By crowning the opera- tive surface and widening the faces of the tape guide rollers, more misalignment from perpendicularity between the central axis of the tape guide rollers and the direc- tion of travel of the magnetic tape can be tolerated.
477250
Doby William P.
Lynch Julian M.
Oldham And Company
Westinghouse Electric Corporation
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