Fultograph

The fultograph (pronounced like "photograph") was an early, clockwork image-receiving device, similar in function to fax machines.

It took signals from the loudspeaker socket of a radio receiver and used an electrochemical process to darken areas of sensitised paper wrapped on a rotating drum.

[1] The Fultograph resembled a standard cylinder phonograph, housed in a fumed oak or willow case.

[2] Fulton patented the machine in 1927, and in collaboration with Thomas Thorne Baker and W. Watson and Son, he established 'Wireless Pictures Ltd' in 1928, a company dedicated to producing and marketing the Fultograph.

[4] In October 1929, Lufthansa successfully sent weather charts, sketch of the landing place, and a graphic description of an approaching thunder cloud, by radio fultograph to flying Junkers planes.