Browse Prior Art Database

Bimetallic Tape Capture/ Release Mechanism

IP.com Disclosure Number: IPCOM000049973D
Original Publication Date: 1982-Aug-01
Included in the Prior Art Database: 2005-Feb-09
Document File: 3 page(s) / 44K

Publishing Venue

IBM

Related People

Graham, S: AUTHOR

Abstract

The leader tape to pull a magnetic tape from a reel and guide the magnetic tape through the drive system included two strips of a thin material formed to apply a clamping action by an initial set to hold the end of the magnetic tape. One strip is formed from a nonmagnetic material, while the second strip is of a magnetizable material. An electromagnet placed adjacent the magnetic tape capture area separates these strips when activated for the insertion of the magnetic tape between the strips. The capture is completed when the electromagnet is de-energized.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 53% of the total text.

Page 1 of 3

Bimetallic Tape Capture/ Release Mechanism

The leader tape to pull a magnetic tape from a reel and guide the magnetic tape through the drive system included two strips of a thin material formed to apply a clamping action by an initial set to hold the end of the magnetic tape. One strip is formed from a nonmagnetic material, while the second strip is of a magnetizable material. An electromagnet placed adjacent the magnetic tape capture area separates these strips when activated for the insertion of the magnetic tape between the strips. The capture is completed when the electromagnet is de-energized.

As shown in Fig. 1, a leader tape 1 comprises a non-magnetic strip 2 and a magnetizable strip 3 bonded to the non-magnetic strip 2. The strips 2 and 3 are given an initial set, each curved inward, to form a clamping action to hold the magnetic tape 4. After the magnetic tape 4 is captured, the leader tape 1 is wound onto the take-up reel and pulls the magnetic tape 4 through the tape path onto the take-up reel.

Fig. 2 shows a magnetic tape capture system wherein the leader tape 11 includes a non-magnetic strip 12 and a magnetizable strip 13 for capturing a magnetic tape 14. The magnetic tape 14 includes capture lugs 15 on both surfaces. The capture lugs 15 meet with capture holes 16 and 17 formed in the non-magnetic strip 12 and the magnetic strip 13, respectively. In this embodiment, the magnetic strip 13 is held open by a magnet. The magnetic strip 13 and the non-magnetic strip 12 form a clamping action onto the magnetic tape 14 after the magnetic strip 13 is released by the magnet. The capture lugs 15 enter the capture holes 16 and 17 for a positive connection when the leader tape 11 is retrieved by the rotation of the take-up reel.

Fig. 3 shows a magn...