Automatic dispatch system for teletypewriter lines

AUTOMATION recently has been extended to teletypewriter services used for exchanging messages among stations connected by half-duplex (nonsimultaneous 2-way) multistation telegraph lines. The automatic dispatch system to be described virtually eliminates all station-attendant operations except one. Typing of the message is required to perforate a tape with the teletypewriter codes corresponding to the characters in the message. The attendant then inserts the tape in an automatic transmitter and the dispatch system does the rest.