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Many steam locomotive toys have been made, and railway modelling is a popular hobby. Steam locomotives are often portrayed in fictional works, notably The Railway Series by the Rev W. V. Awdry, The Little Engine That Could by Watty Piper, The Polar Express by Chris Van Allsburg, and the Hogwarts Express from J.K. Rowling's Harry
[5] [7]: 18 Early American locomotives had bar frames, made from steel bar; in the 20th century they usually had cast steel frames or, in the final decades of steam locomotive design, a cast steel locomotive bed – a one-piece steel casting for the entire locomotive frame, cylinders, valve chests, steam pipes, and smokebox saddle, all as a ...
With piston valves, the steam passages can be made shorter. This, particularly following the work of André Chapelon, reduces resistance to the flow of steam and improves efficiency; The usual locomotive valve gears such as Stephenson, Walschaerts, and Baker valve gear, can be used with either
An early working model of a steam rail locomotive was designed and constructed by steamboat pioneer John Fitch in the United States probably during the 1780s or 1790s. [40] His steam locomotive used interior bladed wheels [clarification needed] guided by rails or tracks. Union Pacific 844, an "FEF-3" 4-8-4 "Northern" type steam locomotive
Diagramatic section through an earlier steam locomotive boiler and firebox to the right. Note the boiler is not fitted with a superheater. In the standard steam locomotive fire-tube boiler, the firebox is surrounded by water space on five sides. The bottom of the firebox is open to atmospheric pressure, but covered by fire grates (solid fuel ...
A high-pressure steam locomotive is a steam locomotive with a boiler that operates at pressures well above what would be considered normal for other locomotives. Most locomotives operate with a steam pressure of 200 to 300 psi (1.38 to 2.07 MPa). [1] In the later years of steam, boiler pressures were typically 200 to 250 psi (1.38 to 1.72 MPa).
Some locomotives are designed specifically to work steep grade railways, and feature extensive additional braking mechanisms and sometimes rack and pinion. Steam locomotives built for steep rack and pinion railways frequently have the boiler tilted relative to the locomotive frame, so that the boiler remains roughly level on steep grades.
Sierra Railway #3 on the P&AC. No. 3 is a 4-6-0 Ten-Wheeler steam locomotive built by the Rogers Locomotive and Machine Works of Paterson, New Jersey.Construction of the locomotive was completed on March 26, 1891, and was given Rogers construction number 4493.