Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 621
of frictional resistance; also freedom from the danger incident to handling the heavyweights in the original form of non-rotative engines. The expansion of steam in the Worthingtonpumping engine is determined principally by the size of the compound cylinders, and is sufficient, inconnection with… … PUMPING ENGINES. 593 3495. 40 lbs. From 1860 to 1816 no less than 80 of these engines, with capacities varying from 600,000to 15,000,000 gallons daily, were erected in different parts of the United States and Canada. Fullparticulars of these, together with a complete discussion of the Worthington…
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