Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 120
e is derived from its rapidmotion, the effect of which is tocause a commotion of the waterlike the fluttering of a fowl. Impact Wheels.—The simplest and most imperfect of thehorizontal wheels are the so-called impact wheels or impactturbines, such as shown inFig. III. They consist of i6 or… … #io.llL 122 Pumps and Hydraulics. These wheels are used in falls from lo to 20 ft., where alarge number of revolutions is necessary, as in grain mills,where the moving millstone is hung on the vertical shaft ofthe wheel, hence intermediate gearing is unnecessary. Thesecrude machines are found in…
Hydraulic machinery · Pumping machinery
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