Browse Prior Art Database

Multiple Path Automatic Threading Apparatus

IP.com Disclosure Number: IPCOM000077404D
Original Publication Date: 1972-Jul-01
Included in the Prior Art Database: 2005-Feb-25
Document File: 3 page(s) / 60K

Publishing Venue

IBM

Related People

Zentgraf, HJ: AUTHOR

Abstract

It is desired to provide some tape volume (reel) buffering without the necessity of moving tape volumes from one location to another. Alternate threading paths facilitate transferring tape media from a plurality of supply or mountable reels to one of a plurality of transducing stations.

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Multiple Path Automatic Threading Apparatus

It is desired to provide some tape volume (reel) buffering without the necessity of moving tape volumes from one location to another. Alternate threading paths facilitate transferring tape media from a plurality of supply or mountable reels to one of a plurality of transducing stations.

A plurality of tape reels 10 is suitably mounted for rotation in chambers 11. Tape reels in the left-hand portion have first threading path 12 extending from any of the reels to either of the upper R/W (read/write) stations. Similarly, second tape threading path 13 is provided for any of the tape reels 10 to the left hand one of the lower R/W stations. The right hand portion of chamber 11 similarly has a pair of tape threading paths, one for the upper R/W stations and another for the lower R/W stations.

The threading techniques for use with 1/2'' tape can be those described in U.
S. Patent 3,393,878, using angled air jets for transferring the tape along the respective threading paths. It is preferred that tape reels 10 be enclosed in a so- called wrap-around cartridge as described in U. S. Patent 3,371,882. Threading path 12 or 13 is selected simply by orienting the wrap-around cartridge to have its media exit port 44 (see Patent 3,371,882) either at the top or lower end of the tape reel position. The path is selected by rotating the cartridge to the desired position; that is, each tape reel position has a short threading channel at the top and the bottom oriented in the direction of the arrows, for connection to the longer tape threading paths 12 and 13, respectively. In this manner, by orienting the wrap-around cartridge of 3,371,882 and using the automatic threading teachings of 3,393,878, media can be threaded either toward the top or bottom of chambers 11. After the media has been threaded to the respective R/W stations, reel control motors, not shown, associated with the respective reels 10 can be coordinated with operation of the respective R/W...