John Stone Stone

John Stone Stone (* September 24 1869 in Manakin Sabot, Virginia, † May 20, 1943 in San Diego ) was an American mathematician, physicist and inventor. His father, Charles Pomeroy Stone was an engineer, a general in the American Civil War and then served as aide- de-camp of Ismail Pasha. His mother was Jeannie Stone.

Life

Until 1869, John grew up in Cairo and was taught by his father. After his return he attended Columbia Prep, Columbia University and Johns Hopkins University. According to research at AT & T in Boston and the Massachusetts Institute of Technology, he became director, vice president and chief engineer of the newly founded company Stone Telegraph & Telephone Co., which he presided over as president from 1908 to 1910. The company built a station for the U.S. Navy. In 1907 he founded in Boston the Society of Wireless Telegraph Engineers ( SWTE ), which he was president until 1909. After this time, he worked as a consultant and patent expert. From 1920 he was again working for AT & T, this time as a consultant to the research and development department. This activity he held for 15 years. In 1923, he received the Medal of Honor of the Institute of Radio Engineers (IRE ) in which he was represented from 1912 to 1917, following the merger of IRE SWTE and also on the board.

Inventions

Stone reached many innovations in the field of telephony and telegraphy. At Bell him the invention of Stone common battery system succeeded ( with coils between the battery and phone lines ) and he was involved in the development of new methods of uniform inductive charging of telephone cables.

He held several patents. One was confirmed only after his death compared to the similar system of Guglielmo Marconi. He was also the author of several publications. The most important was The Practical Aspects of the Propagation of High Frequency Waves Along Wires ( German: Practical aspects of amplification of high frequency waves in cables ). For this work he received the 1913 Edward Long Strength Medal of the Franklin Institute.