Planet (locomotive)
Videos
Planet was an early steam locomotive built in 1830 by Robert Stephenson and Company for the Liverpool and Manchester Railway.
Replica of Planet operating at the Science and Industry Museum
A contemporary engraving of a locomotive "similar to the Planet", though with some differences in detail
Cylinder (locomotive)
Videos
The cylinder is the power-producing element of the steam engine powering a steam locomotive. The cylinder is made pressure-tight with end covers and a piston; a valve distributes the steam to the ends
Planet (locomotive)
…Railway. The ninth locomotive built for the L&MR, it was Stephenson's next major design change after the Rocket. It was the first locomotive to employ inside cylinders, and subsequently the 2-2-0 type became known as Planets. On 23 November 1830 No.9 Planet ran the approximately 50 km (30 mi) from Liverpool to Manchester…
The 'motion' on the left-hand side of 60163 Tornado. The black casting to the left houses the cylinder, in which slides the piston; the piston rod is immediately above the wheel.
French 2-2-2 locomotive with nearly horizontal cylinders, 1844
A NYC switching locomotive with outside valves driven by inside valve gear (Howden, Boys' Book of Locomotives, 1907)
The cylinders on a Shay locomotive.