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The Pelton wheel or Pelton Turbine is an impulse-type water turbine invented by American inventor Lester Allan Pelton in the 1870s. [ 1 ] [ 2 ] The Pelton wheel extracts energy from the impulse of moving water, as opposed to water's dead weight like the traditional overshot water wheel .
Lester Allan Pelton (September 5, 1829 – March 14, 1908) was an American inventor who contributed significantly to the development of hydroelectricity and hydropower in the American Old West as well as world-wide. In the late 1870s, he invented the Pelton water wheel, at that time the most efficient design of the impulse water turbine.
The North Star Powerhouse, built by A. D. Foote in 1895, was the first complete plant of its kind. Compressed air, generated by Pelton water wheels, furnished power for the entire mine operation. The 30-foot Pelton wheel was the largest in the world, and was in continuous use for over 30 years.
In 1879, Lester Pelton, experimenting with a Knight Wheel, developed a Pelton wheel (double bucket design), which exhausted the water to the side, eliminating some energy loss of the Knight wheel which exhausted some water back against the center of the wheel. In about 1895, William Doble improved on Pelton's half-cylindrical bucket form with ...
Dellingers Mill, Bakersville, seasonally operational, water powered, 1867; Emmett Isaacs Mill, Surry County; Gwynn Valley Mill, Brevard; Linneys Mill, Alexander County, 1902; Mingus Mill, Cherokee; Old Mill of Guilford, Oak Ridge. Fully operational water-powered grist mill. Founded in 1767, moved 500 feet downstream to current location in 1819.
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Samuel N. Knight developed a high speed, cast iron impulse water turbine which was a forerunner of the Pelton wheel design. Knight Wheels were used in some of the first hydroelectric plants in California, Utah, and Oregon. This site is the last water-powered foundry and machine shop in the United States. [3]
In March 1909 it was announced Willans & Robinson would be manufacturing water turbines, both Pelton and low-pressure wheels. [13] Through World War I Salmson aero engines were manufactured under licence. [1] In 1916 control of Willans & Robinson (86% later increased to 93% of the capital) was sold to Dick, Kerr & Co. [14]
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