Timeline of the electric motor
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Electric motors have a long history going back to the early 19th century.
|Date, Name||Electric Motor Chronology||Selected Patents|
|1820, Ørsted||Danish, physicist and chemist; first to note a compass needle deflected from magnetic north when an electric current from a battery was switched on and off, confirming a direct relationship between electricity and magnetism.|
|1820, Ampère||French, physicist; invented the solenoid.|
|1821 Faraday||British, scientist; showed continuous 'electromagnetic rotation' resulted by suspending a magnetic wire in an electric field;|
|1822, Barlow||British, physicist; invented Barlow's wheel, the first device ever powered by electromagnetism.|
|1824, Arago||French, physicist; showed a rotating copper disk produced rotation in a magnetic needle suspended above it, which Faraday later attributed to induction phenomena.|
|1828, Jedlik||Hungarian, physicist and unsung father of the dynamo and electric motor; invented the first commutated rotary electromechanical machine with electromagnets.|
|1831 Faraday||British, scientist; discovered and investigated induction law in terms of electric current generation in a varying magnetic field.|
|1831, Henry||American, physicist; formulated, independently from Faraday, induction law and created a mechanical rocker, which he however describes as a philosophical toy.|
|1825-1833 Sturgeon||British, scientist; 1825 - invented the electro-magnet; 1833 - built first commutated rotating electric machine that was demonstrated in London.|
|1832-33, Pixii||French, instrument maker, built the first AC generating apparatus out of a rotation; and, the following year, an oscillating DC generator.|
|1833, Saxton||American, inventor; demonstrated an magneto-electric machine before the British Association for the Advancement of Science.|
|1833, Lenz||German; formulated the law of reversibility of generators and motors.|
|1837, Davenport||American, blacksmith-inventor; obtained first US electric motor patent.||US 132|
|1838, Solomon Stimpson||American; built a 12-pole electric motor with segmental commutator.||US 910|
|1834-39, Jacobi||Russian, engineer and physicist; built a 15 watt motor in 1834 submitted to the Academy of Sciences in Paris with detailes published in 1835; demonstrated first use of electric motor to propel a boat; first real useful rotary electrical motor.|
|1840, Truman Cook||American; built electric motor with a PM armature.||US 1735|
|1837-42, Davidson||Scottish, inventor; developed electric motors for a lathe and a locomotive.|
|1845, Froment||French, engineer and instrument maker; first of various motors; first motor translated linear "electromagnetic piston's" energy to wheel's rotary motion. See also Mouse mill motor.|
|1856, Siemens||German, industrialist; invented generator with a double-T armature and slots windings.|
|1861-64, Maxwell||British, scientist; reduced electromagnetism knowledge in four key equations.|
|1871-73, Gramme||Belgium, engineer; developed the anchor ring motor which solved the double-T armature pulsating DC problem; at Vienna exhibition, demonstrated to great effect ability to transmit between generator and motor 1 km apart.|
|1879, Walter Baily||British; by manual switching on and off, developed the first primitive commutatorless induction motor.|
|1885, Ferraris||Italian, physicist and engineer; invented the first AC commutatorless induction motor using two-phase AC windings in space quadrature.|
|1886-89, Tesla||Serbian-American, engineer and physicist; having worked independently from Ferraris, presented a key paper in 1888 to AIEE describing three patented two-phase four-stator-pole motor types: one with a four-pole rotor forming a non-self-starting reluctance motor, another with a wound rotor forming a self-starting induction motor, and the third a true synchronous motor with separately-excited DC supply to rotor winding. This led to Westinghouse acquiring exclusive rights to him patents and retain him as a consultant to work on development of these motors.||US 0,381,968
|1886, Sprague||American, industrialist; development of new constant-speed DC motor, which allowed the Sprague company to issue the world's "first important industrial electric motor catalogue".|
|1889-90, Dolivo-Dobrovolsky||Russian, engineer and inventor; invented the first cage and wound rotor versions of the three-phase induction motor that are still widely in use today.|
|Date, Name||Electric Motor Chronology||Selected Patents|
|1905, Alfred Zehden||A feasible linear induction motor described in patent form for driving trains or lifts.||U.S. Patent 782,312|
|1935, Kemper||Built a working linear induction motor|
|1945-49, Laithwaite||First full-size working model of linear induction motor|
- Doppelbauer, Martin. "A short history of electric motors, 1800-1893". Karlsruhe Institute of Technology.
- Drury, Bill (2001). Control Techniques Drives and Controls Handbook. Institution of Electrical Engineers. p. page xiv. ISBN 0-85296-793-4.
- Electropeadia. "Battery and Energy Technologies, Technology and Applications Timeline".
- Multon, Bernard (June 1995). "Historique des Machines Électromagnétiques et Plus Particulièrement des Machines à Réluctance Variable". Revue 3E (in French) I (3): 3–8.
- Martin, Thomas Commerford; Wetzler, Joseph (1891). The Electric Motor and Its Applications, with an Appendix on 'The Development of the Electric Motor Since 1888' by Louis Bell (3rd ed.). The W.J. Johnston Company, Limited. p. 315 pages.
- "Francois Arago". Encyclopedia Britannica.
- Vučković, Vladan (November 2006). "Interpretation of a Discovery". The Serbian Journal of Electrical Engineers 3 (2). Retrieved 10 February 2013.
- Michalowicz, Joseph C. (Jan 1948). "Origin of the Electric Motor". Trans. of the AIEE 67 (2): 1288–1292. doi:10.1109/T-AIEE.1948.5059817.
- King, H. James (April 1833). "American Journal of Science, 24: 146; Bulletin 228: Contributions from the Museum of History and Technology, p. 349". p. fig. 21 Pixii magneto generator, without commutator.
- Boursin, Philippe. "Histoire de la Voiture Électrique".
- Kenyon College Physics Dept. "Froment motors".
- Baily, Walter (June 28, 1879). "A Mode of Producing Arago's Rotation". Philosophical magazine: A journal of theoretical, experimental and applied physics (Taylor & Francis).
- Sprague, Frank J. (May 1934). "Digging in the "Mines of the Motors"". Trans. of AIEE 53 (5): 695–706. doi:10.1109/T-AIEE.1934.5056690.