A history of the growth of the steam-engine (1878)
Thurston, Robert Henry, 1839-1903 · New York, D. Appleton · leaf 395
one set ofwheels, the permanent weight falling on the driving-wheelsand the variable load on the truck. These engines have alsoa comparatively short wheel-base and high puUing-power.The lightest tank-engines of the first class mentionedweigh 8 or 10 tons ; but engines much lighter than these. 370… … heaviest engine yet constructed in the United States is saidto be one in use on the Philadelphia & Reading Railroad, PORTABLE AND LOCOMOTIVE ENGINES. 371 having a weight of about 100,000 pounds, which is carriedon 12 driving-wheels. A locomotive has two steam-cylinders, either side byside…
Steam-engines
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