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 83
ions. Asthe load to be raised is suspended to a pulley, (See fig.) every turn of theroller raises a portion of the rope equal to the circumference of the thickerpart, bul .Tt, the same lime lets down a portion equal to that of the smaller;consequently the weight is raised at each turn, through a… … No. 19. Chineaa Wimllasc!. No. 20. Fusee Wlndlags. This is the neatest and most simple modification of the wheel and a.\lo,that human ingenuity has devised, and is .a proof that the principles ofmechanical science were well understood in remote ages ; for every me- • De Re Metallica, B.isil 1657.…
Pumping machinery
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