A descriptive and historical account of hydraulic and other machines for raising water (1850)
Ewbank, Thomas, 1792-1870 · New York, Bangs, Platt, & Co. · leaf 135
Chap. 14.] The Tympanum and Scoop Wlieel. Ill ed, and its having been described as represented in the last figure by aRoman philosopher and engineer; it was most likely used as thus con-structed, through the remote ages of antiquity, to the early part of the lastcentury, when a member of the Royal… … No, 45. Tympanum improved by La Faye. o87,j together with the process of reasoning that led to it When thecircumference of a circle is developed j a curve is described, (the invo-lute) of which all the radii are so many tangents to the circle ; and arelikewise all respectively perpendicular to the…
Pumping machinery
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