Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 149
498. IMPACT WATER WHEEL, Leffel pat-tern. Step buckets. Efficiency, eighty-five per cent. … 499. PELTON WATER WHEEL.-An impact wheel driven by the forceof a high-pressure water jet.Efficiency, eighty-five per cent, ofthe product of the height andweight of flowing water throughthe jet, less the friction head.
Mechanical movements
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