Concept

Rainhill trials

The Rainhill trials was an important competition run from the 6 to 14 October 1829, to test George Stephenson's argument that locomotives would have the best motive power for the then nearly-completed Liverpool and Manchester Railway (L&MR). Ten locomotives were entered, of which five were able to compete, running along a length of level track at Rainhill, in Lancashire (now Merseyside). Stephenson's Rocket was the only locomotive to complete the trials, and was declared the winner. The directors of the L&MR accepted that locomotives should operate services on their new line, and George and Robert Stephenson were given the contract to produce locomotives for the railway. The directors of the Liverpool and Manchester Railway had originally intended to use stationary steam engines to haul trains along the railway using cables. They had appointed George Stephenson as their engineer of the line in 1826, and he strongly advocated for the use of steam locomotives instead. As the railway was approaching completion, the directors decided to hold a competition to decide whether locomotives could be used to pull the trains; these became the Rainhill trials. A prize of £500 (equal to £ today) was offered to the winner of the trials. Three notable engineers were selected as judges: John Urpeth Rastrick, a locomotive engineer of Stourbridge, Nicholas Wood, a mining engineer from Killingworth with considerable locomotive design experience, and John Kennedy, a Manchester cotton spinner and a major proponent of the railway. The L&MR company set the rules for the trials. The rules went through several revisions; the final set, under which the competition was held, was: "The weight of the Locomotive Engine, with its full complement of water in the boiler, shall be ascertained at the Weighing Machine, by eight o'clock in the morning, and the load assigned to it shall be three times the weight thereof. The water in the boiler shall be cold, and there shall be no fuel in the fireplace.

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Related concepts (3)
Steam engine
A steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. This pushing force can be transformed, by a connecting rod and crank, into rotational force for work. The term "steam engine" is generally applied only to reciprocating engines as just described, not to the steam turbine. Steam engines are external combustion engines, where the working fluid is separated from the combustion products.
Steam locomotive
A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. It is fuelled by burning combustible material (usually coal, oil or, rarely, wood) to heat water in the locomotive's boiler to the point where it becomes gaseous and its volume increases 1,700 times. Functionally, it is a steam engine on wheels. In most locomotives, the steam is admitted alternately to each end of its cylinders in which pistons are mechanically connected to the locomotive's main wheels.
Rail transport
Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a prepared flat surface, rail vehicles (rolling stock) are directionally guided by the tracks on which they run. Tracks usually consist of steel rails.Rolling stock in a rail transport system generally encounters lower frictional resistance than rubber-tyred road vehicles, so passenger and freight cars (carriages and wagons) can be coupled into longer trains.

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