Dynamic magnetic information storage or retrieval – Head – Head accessory
Patent
1984-03-12
1987-12-08
Wolff, John H.
Dynamic magnetic information storage or retrieval
Head
Head accessory
360 84, G11B 1560
Patent
active
047121475
ABSTRACT:
The magnetic tape guiding cylinder device includes a rotatable upper cylinder; a fixed lower cylinder opposed to the upper cylinder and having a cylindrical member integrally formed with and penetrating through a bottom plate at one end of the lower cylinder which is remoter from the upper cylinder, the cylindrical member being provided with bearings at both axial end portions; a drive shaft rotatably supported by the lower cylinder via the bearings to drive the upper cylinder, the cylindrical member being grasped by a chuck during finishing operation of the lower cylinder. The device is particularly characterized in that the cylindrical member is formed with a circular groove along the outer circumference between the bottom plate and one of the axial end portions which is remoter from the upper cylinder.
REFERENCES:
patent: 3800314 (1974-03-01), Sato
patent: 4347536 (1982-08-01), Miyashita et al.
Arnold Stephen R.
Clarion Co. Ltd.
Hattis Russell E.
Severin David J.
Wolff John H.
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