Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 55
ents a- sectional view of an im-proved tympanum; this was invented by De La Faye; the illustration will be readily under-stood. As shown in Figs. 74 and 75 the wheel is driven by the current of a steam impinging upon what in later times came to be known as boards or floats on the circumference of… … Historical Iniroduction. The Koria or Egyptian Wheel. The tympanum has beendescribed as an assemblage of gutters, and the Noria may beconsidered as a number of revolving svvapes. It consists ofa series of poles united like the arms of a wheel to* a horizontalshaft. To the extremity of each, a…
Hydraulic machinery · Pumping machinery
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