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Braille Embossing and Translation Technique

IP.com Disclosure Number: IPCOM000093802D
Original Publication Date: 1966-Feb-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Johnson, VL: AUTHOR [+2]

Abstract

This Braille embossing and translation technique is suitable for embossing the standard Braille Matrix BM shown in A. It is adaptable to any printer printing on 0. 100 inch centers using the conventional slug face of 0.080 x 0.140 inch. The standard accepted BM is 0.090 to 0.100 inch intracell both horizontally and vertically and 0.160 inch intercell.

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Braille Embossing and Translation Technique

This Braille embossing and translation technique is suitable for embossing the standard Braille Matrix BM shown in A. It is adaptable to any printer printing on 0. 100 inch centers using the conventional slug face of 0.080 x 0.140 inch. The standard accepted BM is 0.090 to 0.100 inch intracell both horizontally and vertically and 0.160 inch intercell.

Most present-day printers emboss on 0. 100 inch centers and space paper at eight lines per inch yielding 0. 125 inch paper movement per space. To compensate for the paper movement the embossing protrusions are spaced 0. 025 inch one above the other as shown in B and D. The proper between line spacing is created by the 0. 125 inch paper movement plus the difference between the top protrusions 1 and 4 and the bottom protrusions 3 and 6 shown in A of 0. 050 inch. A side elevation of the embossing element EE is shown in E comprising a protrusion having a diameter of 0.050 to 0.055 inch and vertical height of 0. 025 inch.

All EE's shown in B C and D are similarly constructed. B makes impressions 1 and 4 in the BM C makes impressions 2 and 5 and D makes impressions 3 and
6. The IBM 1443 Printer is excellent for Braille embossing because of its elastomer platen and static state at print time. A translation program of BCD code to Braille forms part of the macrolibrary of an associated processor. The program is divided into three portions for each horizontal portion of the BM. In t...