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 . 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 Academy of Sciences, of Fi-ance,M, De La Fayo, developed by
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 . 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 Academy of Sciences, of Fi-ance,M, De La Fayo, developed by geometrical reasoning, a beautiful andtiiily philosophical improvement. Jt is described by Belidor, (, 385,. No. 45, Tympanum improvetl by La la) e. <jy7,j together with the process of reasoning that led to it AVhen tliocircumference of a circle is developed ; a curve is described, (tlie invo-iutp) of \vbich all the radii are so many tangents to the circle ; and amlikewise all respectively perpendicular to the several points of the curve de-scribed, which has for its greatest radius, a line equal to the periphery ofthe circle evolved. Hence, having an axle whose circumference a littleexceeds the lieight which the water is proposed, to be elevated, let thecircumference of the axle be evolved, and make a curved canal, whosecurvature shall coincide throughout exactly with that of the involute justformed; if the further extremity of this canal be made to enter the waterthat is to be elevated, and the other extremity abut upon the shaft which-S turned ; then in the course of rotation, the water will rise in a verticalftRKCTlcv, tangential to the shaft, and perpendicular to the canal, in what-e
Size: 1616px × 1547px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, bookiddescriptiveh, bookyear1876
