Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 127
0 horse-power erected,to replace 2 water-wheels, which together, were equal to 30 horse-power.The fall of water was 4 feet 3 inches, and the useful effect, varied with thehead and the immersion of the turbine, 65 to 80 per cent. Several otherswere now erected : 2 for falls of seven feet; i at… … Fig. 119. Turbine Water Uliteis, 129
Hydraulic machinery · Pumping machinery
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