A descriptive and historical account of hydraulic and other machines for raising water (1842)
Ewbank, Thomas · Tilt & Bogue · leaf 131
the circumference of the axle be evolved , and make a curved canal , whose curvature shall coincide throughout exactly with that of the involute just formed ; if the further extremity of this canal be made to enter the water that is to be elevated , and the other extremity abut upon the shaft which… … No . 46 . Scoop Wheel . it into a trough placed under one end of the shaft , which is hollowed into as many compart - Ments as there are partitions or scoops . Wheels of this description , and propelied by steam , are extensively used to drain the fens of Lincolnshire .
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