Patent GB-902157-A (GB)
Title: Improvements relating to apparatus for producing coded justified type matter
Inventor: MOYROUD LOUIS MARIUS
IPC: B41B25/00
Filed: 1959-04-13
Abstract: 902,157. Strip-perforating machines; Justifying type. INTERNATIONAL PHOTON CORPORATION. July 13, 1960 [April 13, 1959], No. 12480/59. Class 100 (3). Apparatus for transmission of coded information corresponding to justified type matter comprises a keyboard and means for displaying said matter in justified form, a temporary memory adapted to store said information as a succession of codes representing a line of said matter, and a transmission device adapted to read the information in the temporary memory a character at a time and to translate and transmit said information as a second succession of codes. The register output can be transferred to a tape perforator or can control the linecasting machine directly. The keyboard may control any one of a series of perforators according to the style of type. The apparatus includes a character width counter and comparison circuits to indicate when the justification zone is reached. One or more characters or the whole line can be deleted or corrected by depression of special keys. Information on the number of spaces is sent to the counter when the space key is depressed. Transmission of the coded information is initiated by the carriage return key. As a line is composed by operation of the keyboard K, it first reaches a wide justification range indicated by one of light signals JP on the copy-holder C. If the line is transmitted to the perforator P, each space bar entry will be produced on the tape as a spaceband code plus a fixed justification space of the maximum spaceband width, giving double justification. Otherwise, the normal justification range is reached and indicated by another light JP and a bell, whereafter only spaceband codes are inserted in the tape. If the line has not reached any justification range, it can only be released by the quadding key or by letter-spacing. If the line is overset, the back-space key is used to remove letters &c., a hyphen or interword point. On a panel E are display panels F, G which show the minimum number of thin spaces required to bring the line into justification range, the maximum number which can be added, and the lengths of the composed words. The operator can depress a button B to select a word, and on punching a thin space code will be added to each letter of the selected word. The quadding and centring keys can be used to punch the control codes for operating automatic quadding equipment, or to calculate and punch codes for the number of quads necessary to fill the line. For providing leaders or spaces between two portions of text, an " Insert Leader " button is used, in the upper rail position for leaders and the lower rail position for spaces. Every code uses an odd number of digits, and if a code element from the keyboard does not reach the perforator, the actuation of an even number of punches produces a warning signal. Exact justification can be reached by using fixed spaces in binary combination having unit values 1, 2, 4 and 8. Specifications 691,738, 691,761, 723,127, 807,752 and 857,791 are referred to.