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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 .
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 ...
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.
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.
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]
Stephenson’s Locomotion used slip-eccentrics [4] although these were soon considered impractical, owing to the lack of access to the crank axles acting as both carrying axle and crankshaft. A somewhat contrived method used for the replica Locomotion is to display it on a track with raised ends, so that the locomotive can be allowed to roll ...
Drawing of Blücher by Clement E. Stretton. Blücher (often spelled Blutcher) was built by George Stephenson in 1814; the first of a series of locomotives that he designed in the period 1814–16 which established his reputation as an engine designer and laid the foundations for his subsequent pivotal role in the development of the railways.
Stephenson's 'steam suspension' provided each wheel with its own 'steam spring'. Vertical cylinders were set into the base of the boiler, above each axle and offset in pairs to the sides. The chassis or frames of Stephenson's locomotives provided little structural strength, most of which came from the shell of the boiler .