Alexander Nikolayevich Lodygin (Russian: ??????????????????????; ????>; 18 October 1847 - March 16, 1923) was an engineer and inventor of Russian electricity, one of the inventors of an incandescent light bulb.
Alexander Nikolayevich Lodygin was born in the village of Stenshino, Tambov Governorate, Russian Empire. His parents are a very old and noble family (descendant of Andrei Kobyla like Romanovs), but very moderate. He studied at Tambov Cadet School (1859-1865). Then he served in the regiment 71st Belev , and in 1866-1868 studied at the Moscow Infantry School. Immediately after graduating from military school, he retired from the military and worked as a worker at Tula's weapons factory.
Video Alexander Lodygin
Timeline
- 1872: He decided to go to Saint Petersburg to attend a lecture at the Saint Petersburg Institute of Technology and start working on electric helicopters (electrolyte ). Electric helicopters will require some kind of artificial lighting that should be electric. He decided to start his helicopter work by developing an electric light source for it.
- 1872: He filed a Russian patent for his filament lamp. He also patented the invention in Austria, England, France, and Belgium. For filaments, Lodygin uses very thin carbon rods, placed beneath the glassbelt. August 1873: He demonstrates the prototype of his electric filament lamp in the physics lecture room of the Saint Petersburg Institute of Technology.
- 1873-1874: He conducts experiments with electric lighting on ships, city streets, etc.
- July 11, 1874: He was granted a Russian patent, as patent number 1619.
- In 1874, the Petersburg Academy of Sciences gave him a Lomonosov prize for the discovery of his filament lamp. In the same year, Lodygin established Electric Lighting Company, A.N. Lodygin and Co.
- 1875: From now on he is very interested in the Narodnik socialist ideas.
- 1880: After Narodnik murdered Emperor Alexander II of Russia, there was suppression of their organization.
- 1884: As a result, he must emigrate from Russia to France and the United States.
- 1895: He married German reporter Alma Schmidt, daughter of an electrical engineer.
- 1890: He created several types of filament lamps with metal filaments; some say he was the first scientist to use tungsten filaments. He was awarded a patent for a lamp with filament tungsten (US Patent No. 575,002 Illuminant Incandescent Lamp , Applications on January 4, 1893) and sold to General Electric (1906), which started the first industrial production of such lamps.
- 1899: Electrical Engineering Institute of Petersburg gives Lodygin an honors degree of electrical engineer.
- 1907: Lodygin returns to Russia. He continues to work on a series of inventions, including new types of electric motors, electric welding, tungsten alloys, electric ovens and melting furnaces. He teaches at the St. Petersburg Electrical Engineering Institute and works for railroads in Petersburg. 1914: He was sent by the Ministry of Agriculture to develop a plan for the electrification of Olonets and Nizhny Novgorod governorates.
- After the February Revolution Lodygin emigrated to the United States. Due to health problems, he refused the Soviet offer to work for their State Plan for Electrification of Russia (1918).
- 1923: He died in Brooklyn in New York.
He created an incandescent bulb before Thomas Edison, but it was not commercially profitable. Lamps with tungsten filaments are indeed the only designs used today, but in 1906 they cost too much.
Some Lodygin ideas were implemented much later, even after his death. In 1871 Lodygin proposed an autonomous rescue device consisting of a steel mask, natural rubber costume, accumulator battery and a special tool for water electrolysis. Divers should inhale the oxygen-hydrogen mixture obtained by water electrolysis. The dive equipment created is very similar to modern dive equipment
His ideas for an electric helicopter were used many years later by Igor Sikorsky.
Maps Alexander Lodygin
References
External links
- Lodygin museum site at Tambov
- http://home.frognet.net/~ejcov/lodyguine.html (with US Patent list)
Source of the article : Wikipedia
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