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 304
e rectanguJnrpieces of stout metal, and are droppc into sli.s Tnide Jir.ugh the riir ofthe drum, tlieir length being equal ♦;.- ;hat of -he case, and their widtli tothe distance between its rim ani tae D piece, hey are moved by 3crank attached to the drum axle. To lessen the friction and… … No i:{7. No. 138. In No. 138 the axis uf the drum or •-.mawcr cylinder is so placed as )ojause its periphery to rub against the inner circumference of the case.Two rectangular pistons, whose length are equal to the internal diame-ter of the case, cross each other at right angles, being notched so…
Pumping machinery
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