Below: illustration from Mechanics magazine 1830 showing Stevenson’s early locomotive, used at he opening of the Liverpool and Manchester Railway. It was the first locomotive to have the Stephenson type firebox incorporated in the boiler, and having a smokebox the full diameter of the boiler. It, therefore, had the first true 'locomotive' boiler. It also had plate frames, a proper tender, and the cylinders set at a relatively low angle to the horizontal, giving smoother running compared with earlier Rocket type locomotives.
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