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Period cutaway diagram of a triple-expansion steam engine installation, circa 1918. This particular diagram illustrates possible engine cutoff locations, after the Lusitania disaster and others made it clear that this was an important safety feature. A marine steam engine is a steam engine that is used to power a ship or boat.
The 1712 Newcomen atmospheric engine (the first steam engine) used chain drive instead of a connecting rod, since the piston only produced force in one direction. [11] However, most steam engines after this are double-acting , therefore the force is produced in both directions, leading to the use of a connecting rod.
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A Watt steam engine, invented by James Watt, who transformed the steam engine from a reciprocating motion that was used for pumping to a rotating motion suited to industrial applications; Watt and others significantly improved the efficiency of the steam engine. Newcomen's steam-powered atmospheric engine was the first practical piston steam ...
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