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Deflector to Assist in Attachment of Tape to Vacuum Hub

IP.com Disclosure Number: IPCOM000084406D
Original Publication Date: 1975-Nov-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Rueger, WJ: AUTHOR [+2]

Abstract

Shown is a deflector 10 for assisting a vacuum hub 11 in capturing the leading edge of a tape 12 pneumatically carried to the hub. Hub 11 is mounted in a substantially airsealed cavity 13. The hub contains vacuum ducts in its cylindrical surface. Accordingly, the flow of air in the cavity 13 surrounding the hub is vortex in nature from throat 15 into the hub 11.

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Deflector to Assist in Attachment of Tape to Vacuum Hub

Shown is a deflector 10 for assisting a vacuum hub 11 in capturing the leading edge of a tape 12 pneumatically carried to the hub. Hub 11 is mounted in a substantially airsealed cavity 13. The hub contains vacuum ducts in its cylindrical surface. Accordingly, the flow of air in the cavity 13 surrounding the hub is vortex in nature from throat 15 into the hub 11.

To encourage the vortex airflow curved deflector 10 deflects the air flow in towards hub 11. Deflector 10 is positioned so that its tip is just under the entry point of the tape into the cavity 13.

Thus during attachment, the deflector 10 deflects the air flow and the leading edge of the tape 12 against the vacuum hub 11 after one revolution of the tape 12 about the vacuum hub.

In addition to assisting the vortex flow, detector 10 also tucks the leading edge of tape 12 under the first overwrap of tape. This prevents the leading edge of the tape from being folded back upon itself and creased by the overwrap of the second layer of tape.

The separate view of the deflector 10 indicates that the deflector has a small brush 14 at each corner of its tip. Brushes 14 prevent the tip of the deflector 10 from riding on the surface of the tape 12. Also by spacing the deflector 10 a small distance from the surface of the tape 12, the vortex flow on the outside of the tape may pass between the tape and the tip of the deflector 10.

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