Browse Prior Art Database

Truncated Cone Storage Device

IP.com Disclosure Number: IPCOM000074359D
Original Publication Date: 1971-Apr-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 2 page(s) / 57K

Publishing Venue

IBM

Related People

Amrine, HE: AUTHOR [+2]

Abstract

This is a truncated cone storage device. A cone shaped capstan 2 supports a thin flexible cone recording medium 4 having a ferromagnetic recording material deposited or applied to the outside surface 5. Rack 12 and pinion gear 14 accessing mechanism moves the read/write head 10 to the various data tracks on recording surface 5. Cone 4 may be removed from capstan 2 for storing or stacking. Motor 16 drives capstan 2, and the cone 4 which it supports.

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Truncated Cone Storage Device

This is a truncated cone storage device. A cone shaped capstan 2 supports a thin flexible cone recording medium 4 having a ferromagnetic recording material deposited or applied to the outside surface 5. Rack 12 and pinion gear 14 accessing mechanism moves the read/write head 10 to the various data tracks on recording surface 5.

Cone 4 may be removed from capstan 2 for storing or stacking. Motor 16 drives capstan 2, and the cone 4 which it supports.

In operation, a self-generating vacuum system holds the cone 4 securely to the capstan 2, registering the cone on the capstan and providing a rigid recording surface. The vacuum system comprises the hollow capstan 2 with squirrel blades 6 machined in the bottom and cooperating with vacuum ports 8. Since the capstan is light and the cone 4 is very light, a very small vacuum force is sufficient to retain the cone in position.

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