Browse Prior Art Database

Braille Correction Key

IP.com Disclosure Number: IPCOM000093234D
Original Publication Date: 1967-Jul-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 49K

Publishing Venue

IBM

Related People

Emig, MB: AUTHOR

Abstract

Braille symbols are erased by impacting a negative form against such symbols. Braille symbols 1 typed into paper 2 against soft rubber platen sleeve 3 can be erased by overstriking correction head 4. Depressions 5 in face 6 of head 4 directly overlay the Braille cells or projections 7 and permit face 6 together with rubber platen sleeve 3 to restore cells 7 to the plane of paper 2. Correction typebar 8 is constructed to avoid striking universal bar 9 that causes normal letter feed escapement. If desired, an erroneous symbol can thus be struck several times in succession to assure its erasure.

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Braille Correction Key

Braille symbols are erased by impacting a negative form against such symbols. Braille symbols 1 typed into paper 2 against soft rubber platen sleeve 3 can be erased by overstriking correction head 4. Depressions 5 in face 6 of head 4 directly overlay the Braille cells or projections 7 and permit face 6 together with rubber platen sleeve 3 to restore cells 7 to the plane of paper 2. Correction typebar 8 is constructed to avoid striking universal bar 9 that causes normal letter feed escapement. If desired, an erroneous symbol can thus be struck several times in succession to assure its erasure.

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