Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 932
uses, directly from pulleys on the water-wheel shaft to the pulleys on the dynamo,the saw arbor, or the pumping machinery. WATER WHEELS. 899 A novel form of the Leffel wheel is known as the twin combination. This consists of tworegularly built James Leffel wheels, either standard or special, placed… … Fig. 12.—Leffel wheel. downward through a single central draft tube of large capacity. The changes in generaldesign of the standard Leffel wheel which have been made of late years, consist in widergates and correspondingly wider buckets. This arrangement secures a greatly enlargedcapacity for…
Mechanical engineering
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