Evening Republican, Volume 23, Number 291, Rensselaer, Jasper County, 7 December 1920 — Earl Hanson and His Invention [ARTICLE+ILLUSTRATION]

Earl Hanson and His Invention

Earl C. Hanson, American Inventor who served In the navy department of engineering during the war, with the receiving apparatus of hl* ne< Invention on the United States torpedo boat destroyer Semmes, while ht| ap> paratus was guiding the vessel through Ambrose channel. An apparatus on the ship receives impulses from a submarine cable laid for the purpose, panson invented an amplifier which renders the electric signal currents as understandable as a telegraph message. Receivers on each side of the ship gtv< out sounds through ear pieces, so the navigator can tail hjr the the sound in each ear when he Is over the cable. |