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Stephenson's Rocket is an early steam locomotive of 0-2-2 wheel arrangement. It was built for and won the Rainhill Trials of the Liverpool and Manchester Railway (L&MR), held in October 1829 to show that improved locomotives would be more efficient than stationary steam engines .
Stephenson's Rocket, the first 0-2-2 locomotive.This is the condition after rebuilding, with the cylinders lowered from their original position. An 0-2-2, in the Whyte notation for the classification of steam locomotives by wheel arrangement, is one that has two coupled driving wheels followed by two trailing wheels, with no leading wheels.
British LMS Stanier Class 5 4-6-0 Locomotive no. 44767 showing experimental Stephenson valve gear unusually mounted outside the frames A simple Stephenson gear in partial cutoff. The Stephenson valve gear or Stephenson link or shifting link [1] is a simple design of valve gear that was widely used throughout the world for various kinds of steam ...
Later conjectural drawing of the Rainhill trials. In the foreground is Rocket and in the background are Sans Pareil (right) and Novelty.. The Rainhill trials were a 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). [1]
The next stage, for example Stephenson's Rocket, was to drive the wheels directly from steeply inclined cylinders placed at the back of the locomotive. Direct drive became the standard arrangement, but the cylinders were moved to the front and placed either horizontal or nearly horizontal.
Diagram and lot no. Built Location Object Number Image Grand Junction Railway: 282693 1838 Travelling Post Office replica Wolverton (LMS) 1938 Shildon [190] [191] 1975-7043/1 West Coast Joint Stock (LNWR) 186 TPO: Wolverton: Dia No. 87 1883 York [192] 1975–7042 GNR: 948 Six-wheel full brake Doncaster: 1887 York [193] 1975–7044 ECJS: 82 ...
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[note 2] In 1844, William Williams, a pattern-maker for Stephenson, made the remarkable invention of realising that if a closed gab was made into a curved link, so that it fitted the pin closely throughout its travel, then the valve gear could also be set into an intermediate position, and that this would also have the effect of giving ...