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 154
g- words, has been fully and practical-ly developt.d by a French engineer. A dovldc water screw, the inner-most to mount the water, and the outermost for it to descend, more innumber of threads, and consequently in quantity of water, though fxiuchohorter than the innermost screw by which the water… … No. 62. No. 60. represents two separate screws formed on the same axis, oneof which, A, is long and narrow and serves for the nucleus of C, whichis much wider and shorter. This is designed to propel the former. Thethreads of both wind round the axis in opposite directions, so that when thoseon one…
Pumping machinery
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
