A Radio Typewriter

Radio Record, Volume IV, Issue 47, 5 June 1931, Page 17

A Radio Typewriter

Ingenious Invention A DEMONSTRATION with a wireless typewriter was given at Detroit recently. The typewriter, invented by Mr. Glen W. Watson, and known as the "Watsongraph," enables an operator sitting at a typewriter to type out a message which is automatically and simultaneously conveyed by shortwave wireless to another typewriter at any distance. The receiving typewriter automatically types out the message as sent. A transmitter for ordinary commercial use can be made, to weigh only about 20Ib. Speed of transmission is limited only by the skill of the operator, since the typewriter can. record 1200 ‘letters a minute. Any receiving typewriter, synchronised. with the transmitter, could .be tuned: in wherever the receiver’ might be, and the message could be -typed simultaneously on several receivers. If secrecy is desired, it can be arranged that -nly the ‘transmitter and the required receiver are synchronised. The owner would thus be independent of all public means, of communication. The inventor pointed out the usefulness of the typewriter for police work; it could be carried on patrol cars and used for sending messages to headquarters in’ absolute secrecy without code.