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A Corliss steam engine (or Corliss engine) is a steam engine, fitted with rotary valves and with variable valve timing patented in 1849, invented by and named after the US engineer George Henry Corliss of Providence, Rhode Island. Corliss assumed the original invention from Frederick Ellsworth Sickels (1819- 1895), who held the patent (1829) in ...
Standalone fans are usually powered by an electric motor, often attached directly to the motor's output, with no gears or belts. The motor is either hidden in the fan's center hub or extends behind it. For big industrial fans, three-phase asynchronous motors are commonly used, may be placed near the fan, and drive it through a belt and pulleys.
Before mains electricity and the formation of nationwide power grids, stationary engines were widely used for small-scale electricity generation.While large power stations in cities used steam turbines or high-speed reciprocating steam engines, in rural areas petrol/gasoline, paraffin/kerosene, and fuel oil-powered internal combustion engines were cheaper to buy, install, and operate, since ...
A stationary steam engine, preserved at Tower Bridge in London. This is one of two tandem cross-compound hydraulic pumping engines formerly used to raise and lower the bridge. Stationary steam engines are fixed steam engines used for pumping or driving mills and factories, and for
1125 (): In Reims, according to William of Malmesbury, an organ was powered by heated water. He claims it was built by Pope Sylvester II. [1] Late 15th century AD: Leonardo Da Vinci described the Architonnerre, a steam-powered cannon. [2] 1551 (): Taqi al-Din Muhammad ibn Ma'ruf describes a steam turbine-like device for rotating a spit. [3]
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During the 1830s, the most popular valve drive for steam locomotives was known as gab motion in the United Kingdom and V-hook motion in the United States. [3] The gab motion incorporated two sets of eccentrics and rods for each cylinder; one eccentric was set to give forward and the other backwards motion to the engine and one or the other could accordingly engage with a pin driving the ...
1867 Motorcycle (steam-powered) An 1860s drawing of the Roper steam velocipede. The motorcycle is a single-track, two-wheeled motor vehicle powered by an engine. Although the first gasoline/petrol motorcycle powered by an internal combustion engine was built in 1885 by a German named Gottlieb Daimler, his may not have been the first motorcycle.