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Self Threading Leader Tape

IP.com Disclosure Number: IPCOM000050382D
Original Publication Date: 1982-Oct-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 30K

Publishing Venue

IBM

Related People

Greco, RA: AUTHOR [+3]

Abstract

In a tape drive, a leader tape can be used to thread a magnetic tape through the sensing path onto a take-up reel. In order to prevent the self threading apparatus, such as the coupling device, from causing bends in the tape when winding on the take-up reel, the coupling device is formed to become a part of the take-up reel. The leader tape has a narrow width for the majority portion of its length to wind around an inner hub of the take-up reel. The last wrap of the leader tape covers the outer flanges of the take-up reel to provide a smooth, circular base with the coupling device for the subsequent magnetic tape.

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Self Threading Leader Tape

In a tape drive, a leader tape can be used to thread a magnetic tape through the sensing path onto a take-up reel. In order to prevent the self threading apparatus, such as the coupling device, from causing bends in the tape when winding on the take-up reel, the coupling device is formed to become a part of the take-up reel. The leader tape has a narrow width for the majority portion of its length to wind around an inner hub of the take-up reel. The last wrap of the leader tape covers the outer flanges of the take-up reel to provide a smooth, circular base with the coupling device for the subsequent magnetic tape.

As shown in Fig. 1, the tape drive includes a take-up reel 1 having one end of a leader tape 2 connected to the take-up hub 3. At the opposite end of the leader tape 2 is a coupling device 4 which couples the leader tape 2 to a magnetic tape 5. The magnetic tape 5 is shown wound around a file reel 6, positioned for access to the tape drive. The tape drive sensing path includes a magnetic head 7 and various idler and/or drive rollers 8 and 9.

The coupling device 4 is shown in Fig. 2. The coupling device includes a male portion 10 having the leader tape attached thereto. The female portion 11 of the coupling device is attached to the free end of the magnetic tape 5. When the coupling device is connected together, its upper portion provides a circular section that adapts to the cutout 12 of the take-up reel hub 3, as shown in Fig...