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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 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 .
It was during Allan's ownership of the foundry that Lester Allan Pelton of Camptonville invented a new type of water wheel in the late 1870s. [11] He brought it to Allan's foundry, where he and Allan tested it before manufacturing the first Pelton wheel. When the foundry could not keep up with Pelton wheel orders, production for the Pelton ...
In 1878, Lester Pelton of Camptonville brought a strange machine to the Miners Foundry in nearby Nevada City. The Pelton wheel, about the size of a car tire and referred to as "Wheel One", was put on display for mine owners. It used cups on a wheel to draw water and harness power. [23]
Lester Allan Pelton's competing Pelton Wheel was developed in 1878, based on a similar concept, but using two cups side-by-side and having the nozzle pointed directly between the cups. It turned out to be more efficient, the two types having been directly compared in a competition in 1883. The Pelton Wheel went on to become the industry standard.
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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 ...
Starting in 1895, Lester Allan Pelton's water wheel provided electric power for the mine and stamp mill. [6]: 16 The Cornish provided the bulk of the labor force from the late 1870s until the mine's closure eighty years later. William Bowers Bourn acquired control of the company in 1869.