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Browse Prior Art Database

Random Access Storage System

IP.com Disclosure Number: IPCOM000098940D
Original Publication Date: 1958-Dec-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 2 page(s) / 60K

Publishing Venue

IBM

Related People

Lyncott, JJ: AUTHOR

Abstract

This random access storage system uses a flexible magnetic tape, A selected bight 1 of a statically disposed tape 2, arranged in loops on a supporting disk or other member, is withdrawn from storage and read or written upon by a magnetic head 3, the balance of the tape remaining at rest.

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Random Access Storage System

This random access storage system uses a flexible magnetic tape, A selected bight 1 of a statically disposed tape 2, arranged in loops on a supporting disk or other member, is withdrawn from storage and read or written upon by a magnetic head 3, the balance of the tape remaining at rest.

There is provided a tape selector arm 4 rotatively positionable for alignment over selected bight 1 of tape 2, each bight being held by a pair of flexible pins 5. The selector arm is positioned vertically to either a raised or lowered position, as indicated by arrow 7. It is provided with tracks 8 along each side so as to present an I-shaped cross-section. A traveling shoe 9 is suspended beneath arm 4 from a pair of jaws 10 riding in tracks 8 and is driven along arm 4 by a two-directional shoe drive 11 using a pulley 12 and drive belt arrangement 13.

The shoe is provided with a front blade 14 and rear blade 15 extendng downwardly for engaging the outer and inner pins 5. Each of the pins is arranged in its own guide slot 16 to permit flexing inwardly toward each other when they are driven downwardly by the blades of the shoe. Each blade is also provided with a groove 17 along its lower edge for securely engaging its associated pin. A magnetic transducer 3 is fixed to the side of arm 4 for reading or recording on the selected tape bight, as the latter is carried past transducer 3 by shoe 9.

In operation, starting with arm 4 in its raised position, the a...