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Hungarian, physicist and unsung father of the dynamo and electric motor; invented the first commutated rotary electromechanical machine with electromagnets. [ 3 ] [ 5 ] He invented the commutator . In 1828, Jedlik demonstrated the first device to contain the three main components of practical DC motors: the stator , rotor and commutator.
As early as 1834, he developed a battery-powered electric motor, along with his wife Emily Davenport. They used it to operate a small model car on a short section of track, paving the way for the later electrification of streetcars. [2] It is the first attempt to apply electrification to locomotion. [3]
The magnet was made of 18 turns of bare copper wire (insulated wire had not yet been invented). [1] 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.
An industrial electric motor . An electric motor is a machine that converts electrical energy into mechanical energy.Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft.
Wheeler invented many electrical devices. He specialized in power saving electrical tools. In 1882 he invented the electric fan by placing a two-bladed propeller on the shaft of an electric motor. It was known as the "buzz fan." [4] He was awarded the John Scott Medal for this invention in 1904 by the Franklin Institute.
In 1999, grandsons, John L. Sprague and Peter Sprague cut the ribbon and started an 1884 Sprague motor at a new exhibit at the Shore Line Trolley Museum, where a permanent exhibit, "Frank J. Sprague: Inventor, Scientist, Engineer", tells the story of the role of the "father of electric traction" and the role of electricity in the growth of cities.
Kettering invented an easy credit approval system, a precursor to today's credit cards, and the electric cash register in 1906, which made ringing up sales physically much easier for sales clerks. Kettering distinguished himself as a practical inventor. As he said, "I didn't hang around much with other inventors and the executive fellows.
The "whirl" was an electrostatic reaction motor, the earliest of its kind; [1] while the second derives its theoretical importance as the first instance of the application of what came to be called electric convection. Gordon died in Erfurt, Thuringia.
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