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" We know now that the underlying principle is the same as in a mercurial barometer : it is the pressure of the atmosphere on the surface of the water in the well that pushes the water up into the pump. "
Scientific Dialogues Intended for the Instruction and Entertainment of Young ... - Page 161
by Jeremiah Joyce - 1838 - 362 pages
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Philosophical Transactions of the Royal Society of London: From ..., Volume 13

Royal Society (Great Britain) - Meteorology - 1809 - 792 pages
...otherwise leave void. But, on the contrary, if the uppermost vessel be open, during the agitation, the pressure of the atmosphere on the .surface of the water in that vessel, will force the water down into the middle one, as fast as the absorption of the fixed...
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Scientific Dialogues, Volume 2

Jeremiah Joyce - Astronomy - 1815 - 680 pages
...consequently the weight of water in the longer leg is greater than that in the shorter, and therefore will, by its own gravity, run out at c, leaving a vacuum from...thus continually supply the place of the water in D c. Charles. But since the pressure of fluidi acts in all directions, is not the upward pressure of...
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Lectures on Select Subjects in Mechanics, Hydrostatics, Hydraulics ..., Volume 1

James Ferguson - Eclipses - 1823 - 406 pages
...the bucket goes within that distance from the well, the water will never get above it. Now, as it is the pressure of the atmosphere on the surface of the water in the well, that causes the water to ascend in the pump, and follow the piston or bucket, when the air...
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The Elements of Hydrostatics

Miles Bland - Hydrostatics - 1824 - 380 pages
...body of the pump; supposing that after every elevation of the piston there is an equilibrium between the pressure of the atmosphere on the surface of the water in the reservoir, and the elastic force of the rarefied air between the piston and surface of the column...
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The Portfolio of Entertaining & Instructive Varieties in History ..., Volume 4

1825 - 492 pages
...necessarily formed in ihr receiver. Recurring to the action of the common pump, we shall «ее that the pressure of the atmosphere on the surface of the water in the well, will now force a stream up the rising pipe, and occupy the receiver. The quantity of water,...
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The steam engine theoretically and practically displayed, by G. Birkbeck and ...

George Birkbeck - 1827 - 166 pages
...cylinder and boiler. Then, turning the cock W, the weight of the water in the pipe P, aided very soon by the pressure of the atmosphere on the surface of the water in the cistern O, produces a jet within the cylinder, which, dashing against the piston, is dispersed...
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Popular Lectures on the Steam Engine: In which Its Construction and ...

Dionysius Lardner - Steam-engines - 1828 - 222 pages
...cool air will reconvert the steam in the tube to liquid, and a vacuum will thus be produced so that the pressure of the atmosphere on the surface of the wa.ter in the basin will force the water up in the tube, and it will rush up with considerable force, and fill...
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Popular Lectures on the Steam Engine: In which Its Construction and ...

Dionysius Lardner - Steam-engines - 1828 - 234 pages
...cool air will reconvert the steam in the tube to liquid, and a vacuum will thus be produced so that the pressure of the atmosphere on the surface of the water in the basin will force the water up in the tube, and it will rush up with considerable force, and fill...
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London Journal of Arts, Sciences and Manufacturers, and Repertory of Patent ...

William Newton, Charles Frederick Partington - Industrial arts - 1829 - 384 pages
...pump, at the same time a similar operation is going on in the pipe r, for the valve t, being opened, the pressure of the atmosphere on the surface of the water in the cistern s, forces a portion of that water up the pipe r ; and it is important that the vacuum formed...
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Library of Useful Knowledge: Natural philosophy, Volume 1

1829 - 522 pages
...was prevented from entering, by the circumstance of the valve opening outwards ; and, consequently, the pressure of the atmosphere on the surface of the water in the well or reservoir, forced it up into the vessel or tube. Shortly after this, Newcomen used the...
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