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 949
gh-breast wheels is 75 per cent, when moving at the rate of 5 ft. per second at the periphery.The usual velocity adopted by him for high and low falls was from 4 to 6 ft. per second ; for a mini-mum velocity, 3 ft. 6 in. per second for falls of from 40 to 45 ft.; and for a maximum velocity, 7… … * From Clarks Kales, Tables, and Data, &c. WATER-WHEELS. 915 suitable velocity of .floats is 4£ ft. per second; the velocity should not exceed the limits of from 3 to6^ ft. per second. The depth of water over the sliding gate should be from 8 to 10 in. measured 4244.
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