printing-telegraph

Updated: May 28, 2025

There were communication exchanges before the invention of the telephone. Thomas B. Doolittle had one in Bridgeport, using telegraph instruments Thomas B. A. David had one in Pittsburg, using printing-telegraph machines, which required little skill to operate. And William A. Childs had a third, for lawyers only, in New York, which used dials at first and afterwards printing machines.

Herbert Newton Casson - The History of the Telephone

E. A. Callahan, an ingenious printing-telegraph operator, saw that there were unexhausted possibilities in the idea, and his foresight and inventiveness made him the father of the "ticker," in connection with which he was thus, like Laws, one of the first to grasp and exploit the underlying principle of the "central station" as a universal source of supply. The genesis of his invention Mr.

Frank Lewis Dyer - Edison, His Life and Inventions

In Philadelphia, for instance, a resolute young man named Thomas E. Cornish was attacked as though he had suddenly become a public enemy, when he set out to establish the first telephone service. No official would grant him a permit to string wires. His workmen were arrested. The printing-telegraph men warned him that he must either quit or be driven out.

Herbert Newton Casson - The History of the Telephone