Locomotive text for engineers and firemen; a complete treatise on the engine, electric head-light and standard code of train rules (1908)
National correspondence school of railroading, Chicago. [from old catalog] · [Chicago] · leaf 273
The intercepting and reducing valves of a two-cylin-der compound engine are automatically operated by thesteam pressure exerted upon them, this being due to thedifference in the areas of the ends of the valves. A compound engine should be operated as a simpleengine only when starting a heavy train… … COMPOUND LOCOMOTIVES. 263 two-thirds of the oil for cylinder lubrication should be fedto the high pressure cylinder while using steam. Whendrifting for a long distance this rule should be reversed,but the amount of oil used can be lessened by using alittle steam. The necessity, for feeding more oil…
Locomotives
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