Browse Prior Art Database

Automatic Tape Loading And Unloading

IP.com Disclosure Number: IPCOM000097083D
Original Publication Date: 1962-May-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 42K

Publishing Venue

IBM

Related People

Barbeau, RA: AUTHOR

Abstract

The tape transport 1 has vacuum columns 2 and 3 for receiving respective loops of tape from reels 9 and 10 that are mounted in a cartridge 15 of the tape unit. The system permits automatic loading and unloading of the tape from the cartridge into and from the vacuum columns.

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Automatic Tape Loading And Unloading

The tape transport 1 has vacuum columns 2 and 3 for receiving respective loops of tape from reels 9 and 10 that are mounted in a cartridge 15 of the tape unit. The system permits automatic loading and unloading of the tape from the cartridge into and from the vacuum columns.

Before any tape loading or unloading is done, any recording head or other obstruction to the loading process is retracted out of the way. Vacuum suction plate 8 is near the top inside wall of column 2. It is connected by line 18 to vacuum source 12, used only while the tape is being loaded into the vacuum columns.

Prior to any threading of the tape into the columns, suction is applied to plate 8 by starting a vacuum motor at source 12. About the same time, a motor for reel 9 is started by reel-servo control 13. Reel 9 turns slowly in a counterclockwise direction while reel 10 remains braked. Thus, tape moves downwardly in a drooping manner until it centrally touches the top of capstan 11. The tape tends to droop into the left-hand column 2 where it is sucked in by the column vacuum. The suction, through perforations of plate 8, then pulls the tape against plate 8. As reel 9 spins further, the bottom of tape loop 5 ultimately interrupts light beam 14 which actuates control 13 to stop rotation of reel 9 and apply a brake to it.

Then, clockwise rotation is started for reel 10 by reel-servo control 13. The tape then loops into the top of column 3 into which it is drawn by the vacuum of the column. Ultimately, tape loop 6 moves downwardly in column...