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 124
e prominent defect of the tympanum arises from the water beingalways at the extremity of a radius of the wheel, by which its resistanceincreases as it ascends to a level with the axis; being raised at the end oflevers which virtually lengthen till the water is discharired from themThere is no… … 14 The Tijnipannm and Scoop Wheel. Ill ed, and its having been doscribcd as rcpresonted in tlio last fign/o by aIlcjrnari pliiloeopher and engineer; it was most likely used as thus con-structed, llirough the remote ages of antifjuity, to the early part of the lastcentury, when a member of the Royal…
Pumping machinery
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