 | Isaac Todhunter - 1877 - 442 pages
...piston. The pressure of the air in the pipe is now less than that of the atmosphere, and accordingly the pressure of the atmosphere on the surface of the water in the well forces water up the pipe EB -to such a height as to make the pressure at E equal to that of... | |
 | Michael Reynolds - 1877 - 300 pages
...sometimes it will run for a few seconds, and then stop entirely. This interesting phenomenon is caused by the pressure of the atmosphere on the surface of the water at the mud-hole, which is more than sufficient to balance the weight of water around and above the... | |
 | Joseph Anthony Gillet, William James Rolfe - Physics - 1881 - 342 pages
...moves on towards B, and as it moves away more water is driven up into the arm CM to take its place by the pressure of the atmosphere on the surface of the water in the vessel. No liquid will flow through a siphon unless the atmospheric pressure is sufficient to raise... | |
 | Joseph Anthony Gillet, William James Rolfe - Physics - 1881 - 544 pages
...moves on towards B, and as it moves away more water is driven up into the arm C ' M to take its place by the pressure of the atmosphere on the surface of the water in the vessel. No liquid will flow through a siphon unless the atmospheric pressure is sufficient to raise... | |
 | Joseph Anthony Gillet, William James Rolfe - Physics - 1882 - 210 pages
...tube by the action of the piston; and the water is then forced up through the tube into the barrel by the pressure of the atmosphere on the surface of the water in the well or cistern. The two kinds of pumps in ordinary use are shown in Figures 70 and 71. Each has... | |
 | William R. Maguire - Drainage - 1890 - 460 pages
...gave an unsatisfactory reply. However, the question set him to study the problem. He believed that the pressure of the atmosphere on the surface of the water in the well forced the water to rise as far as it did rise, and he saw at once that the answer, " Nature... | |
 | Perry Fairfax Nursey - Industrial arts - 1832 - 512 pages
...over the end D of the pipe DE, and immerse it in the water in the tank. Now, withdraw the hand, and the pressure of the atmosphere on the surface of the water in the tank will prevent any water from falling back out of the head ; and when any quantity of hot waler... | |
 | St. George Jackson Mivart - Science - 1894 - 452 pages
...limb DE it will be replaced by a rise of water from A up the limb CD to replace it — a rise due to the pressure of the atmosphere on the surface of the water in A. By the continuation of this process the water in A will gradually become transferred into the vessel... | |
 | Allan Greenwell - Water-supply - 1896 - 296 pages
...withdraws the pressure of the atmosphere from the surface of the water inside the suction pipe, and the pressure of the atmosphere on the surface of the water in the well forces the water np above the clack, or to such a height that the pressures on either side... | |
 | George Albert Wentworth, George Anthony Hill - Physics - 1898 - 184 pages
...pressure of the water in the delivery pipe closes the valve opening to the barrel ; and at the same time the pressure of the atmosphere on the surface of the water in the well forces more water through the supply pipe and the fixed valve into the barrel. During the... | |
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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. 
