A London encyclopaedia, or universal dictionary of science, art, literature and practical mechanics : comprising a popular view of the present state of knowledge : illustrated by numerous engravings, a general atlas, and appropriate diagrams . valve m, because n im-mediately shuts; and then most of the air whichwas in this part of the pump at the beginninggoes up through it, some of the water coming-back in its stead. In the mean time the airwhich remained in the upper part of the pumpafter the ascent of the piston, is rarefied by itsdescent; because the valve o shuts as soon as thepiston begi
A London encyclopaedia, or universal dictionary of science, art, literature and practical mechanics : comprising a popular view of the present state of knowledge : illustrated by numerous engravings, a general atlas, and appropriate diagrams . valve m, because n im-mediately shuts; and then most of the air whichwas in this part of the pump at the beginninggoes up through it, some of the water coming-back in its stead. In the mean time the airwhich remained in the upper part of the pumpafter the ascent of the piston, is rarefied by itsdescent; because the valve o shuts as soon as thepiston begins to descend, the valve p opens, theair in the suction-pipe h, expands into thebarre, and the water rises into the pipes by thepressure of the atmosphere. The next rise ofthe piston must bring more water into thelower part of the barrel, and must drive a littlemore air through the valve o, namely, part ofthat which had come out of the suction-pipe h;and the next descent of the piston must drivemore water into the rising-pipe k, and alongwith it most, if not all, of the air which remainedbelow the piston, and must rarefy still more theair remaining above the piston; and more water II YI>K(kVLATK\S & 11 V DKAlLKsS /-/.//// LondonJii/. //i,/,,Y/o?/??>? (7i,r,/>.s/,/,J/>,raJd27. Muv sil iHirBK© STATICS & HYBlRAiUILlCS,
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Keywords: ., bookcentury1800, bookdecade, booksubjectaeronautics, bookyear1829
