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Card Holder for Correcting Typewriter

IP.com Disclosure Number: IPCOM000078949D
Original Publication Date: 1973-Apr-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Buckley, LW: AUTHOR [+6]

Abstract

A card holder for the IBM Correcting Selectric typewriter is configured generally as a card holder for the IBM Selectric typewriter, with the exception that a zone of the surface of the card holder 10, is textured to provide a moderately rough surface. In addition to the texturing, the card holder 1 is coated over its entire surface with a thin coating 12 of polytetrafluoroethylene or similar low-energy materials, to reduce the tendency of sticking. Additional modifications include the implementing of ridges 14, adjacent the print opening of the card holder, to further reduce surface engagement of the adhesive tape with the surface of the card holder, thereby tending to eliminate print or correction failures due to the tape being adhesively engaged with the surface of the card holder 1.

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Card Holder for Correcting Typewriter

A card holder for the IBM Correcting Selectric typewriter is configured generally as a card holder for the IBM Selectric typewriter, with the exception that a zone of the surface of the card holder 10, is textured to provide a moderately rough surface. In addition to the texturing, the card holder 1 is coated over its entire surface with a thin coating 12 of polytetrafluoroethylene or similar low- energy materials, to reduce the tendency of sticking. Additional modifications include the implementing of ridges 14, adjacent the print opening of the card holder, to further reduce surface engagement of the adhesive tape with the surface of the card holder, thereby tending to eliminate print or correction failures due to the tape being adhesively engaged with the surface of the card holder 1.

Additionally, an increase in the number of teeth 20 on supply ratchet 22 in the correction tape mechanism to approximately 40 teeth from 20 teeth, significantly decreases the amount of nontensioned slack tape. The paying out of adhesive tape is controlled to a finer degree with an increased number of teeth 20 and, therefore, maintains the tape taught and displaced from the surface 12 of card holder 1.

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