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William Sturgeon (/ ˈ s t ɜːr dʒ ə n /; 22 May 1783 – 4 December 1850) was an English physicist and inventor who made the first electromagnet and the first practical electric motor. Early life [ edit ]
Serbian-American, engineer and inventor; having worked independently from Ferraris, presented a paper in May, 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 ...
The first commutator DC electric motor capable of turning machinery was invented by English scientist William Sturgeon in 1832. [23] Following Sturgeon's work, a commutator-type direct-current electric motor was built by American inventors Thomas Davenport and Emily Davenport, [24] which he patented in 1837.
Thomas Davenport (July 9, 1802 – July 6, 1851) was a Vermont blacksmith who, with his wife Emily, constructed the first American DC electric motor in 1834. [ 1 ] Biography
A compound DC motor connects the armature and fields windings in a shunt and a series combination to give it characteristics of both a shunt and a series DC motor. [5] This motor is used when both a high starting torque and good speed regulation is needed. The motor can be connected in two arrangements: cumulatively or differentially.
The phonograph becomes faster and more convenient due to an electric motor. The electric motor brings on the first juke box with cylinders – even before flat disk records were widely available. Thomas Edison discovers thermionic emission. This effect forms the basis for the vacuum tube and the cathode ray tube.
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