A descriptive and historical account of hydraulic and other machines for raising water, ancient and modern : with observations on various subjects connected with the mechanic arts: including the progressive development of the steam engine (1876)
Ewbank, Thomas, 1792-1870 · New York : Scribner, Armstrong · leaf 87
ground to a distance equivalent to the depthof the well; thus when they reach the end of tlieir track, the pot israised to its proper elevation.^ The contents, water and oil, are then dis-charged into a cistern, and the water is afterwards drawn off throuffh ahole in the bottom. A ratchet wheel and… … No. 24. Tread WhecL Another mode of communicating motion to the roller, is by means of atread wheel^ attached like the drum in figure 23, to one end of it. lathis, a man or an animal walks or rather climbs up one side, somewhatlike a squirrel in its cage, and by his weight turns the wheel, and…
Pumping machinery
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