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Coding and Decoding Device for the Use of a Connected Typewriter as Teletype on Telegraphic Line

IP.com Disclosure Number: IPCOM000096026D
Original Publication Date: 1964-Nov-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 65K

Publishing Venue

IBM

Related People

Mouchon, R: AUTHOR

Abstract

The system consists in transmitting the movement of decoding bars 15 to coding bars 18 by transfer bars 17.

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Coding and Decoding Device for the Use of a Connected Typewriter as Teletype on Telegraphic Line

The system consists in transmitting the movement of decoding bars 15 to coding bars 18 by transfer bars 17.

The telegraphic pulses are received over the line 7. They energize the reed relay 8'. Its contacts in line 8 close allowing a pulse to be sent to an electromagnet through the contacts of cams 0... 6. A telegraphic signal is composed of seven pulses: a start pulse, the five code pulses and a stop pulse. At the first pulse, an electroclutch is released and allows the camshaft to be rotated by motor devices, not shown. The rotation of the seven cams allows each pulse to be sent to a different electromagnet winding. The first pulse, as explained, releases the cam shaft clutch. Those among the next five pulses, which occur according to the character or function, control the action of five decoding bars 15. At the last code pulse time, all the code pulses are received, the prepared selection is entirely made and the transfer is allowed by the movement of the transfer control bar 16 movement which, in any case, is made at this time by the operation of the cam 5 controlling also the switching of the last code pulse.

The movement of the decoding bars and control transfer bar is made by the control of the electromagnet receiving the impulse through an intermediate device destined to memorize the impulse. The electro magnets 9, which receive a pulse upon operation of reed...