The mean pressure of the atmosphere is usually estimated at 14.7 pounds per square inch, so that with a perfect vacuum it will sustain a column of mercury 29.9 inches or a column of water 33.9 feet high. To find the pressure in pounds per square inch... The Engineers' Review - Page 331905Full view - About this book
| Pumping machinery - 1888 - 288 pages
...as the square of the velocity. The mean pressure of the atmosphere is usually estimated at 14.7 Ibs. **per square inch, so that with a perfect vacuum it...29.9 inches, or a column of water 33.9 feet high.** To find the pressure in pounds per square inch of a column of water, multiply the height of the column... | |
| K. L. Armstrong - Encyclopedias and dictionaries - 1889 - 512 pages
...increases its capacity four times. Friction of liquids in pipes increases as the square of the velocity. **The mean pressure of the atmosphere is usually estimated...mercury 29.9 inches or a column of water 33.9 feet high.** To find the pressure in pounds per square inch of a column of water, multiply the height of the column... | |
| Goulds Pumps, Inc - Technology & Engineering - 1900 - 344 pages
...of the velocity. The mean pressure of the atmosphere at tide level is usually estimated at 14.7 Ibs. **per square inch, so that with a perfect vacuum it will sustain a column of mercury 29.9 inches, or** column of water 33.9 feet high. In ordinary practice we recommend Pumps be placed not over twenty feet... | |
| Marine engineering - 1891 - 416 pages
...gallons. The US standard gallon measures 231 cubic inches, and contains 8% pounds of distilled water. **The mean pressure of the atmosphere is usually estimated at 14.7 pounds per square inch.** The average amount of coal used for steam boilers is 12 pounds per hour for each square foot of grate.... | |
| Handbooks, vade-mecums, etc - 1893 - 480 pages
...increases its capacity four times. Friction of liquids in pipes increases as the square of the velocity. **The mean pressure of the atmosphere is usually estimated...14.7 pounds per square inch, so that with a perfect** vacunm it will sustain a column of mercury 20.9 inches or a column of water 3.4. 9 feet high. To find... | |
| Steam-boilers - 1895 - 205 pages
...ordinary friction. The mean pressure of the atmosphere is usually estimated at 14.7 Ibs. per sq. in., **so that with a perfect vacuum it will sustain a column...29.9 inches, or a column of water 33.9 feet high.** The following analyses of water taken from various localities are those made by the Keystone Chemical... | |
| Frederic Milton Johnson - Assaying - 1897 - 103 pages
...horse power. Each nominal horse power of boilers will require about one cubic foot of water per hour. **The mean pressure of the atmosphere is usually estimated...29.9 inches, or a column of water 33.9 feet high.** To find the capacity of a cylinder in gallons: Multiplying the area in inches by the stroke in inches... | |
| Aluminum Company of America - Aluminum - 1897 - 266 pages
...The mean pressure of the atmosphere is usually estimated at 14.7 Ibs. per square inch, so that wilh **a perfect vacuum it will sustain a column of mercury 29.9 inches or a column of water 33.9 feet high.** 7'u find the pressure in pounds per square inch of a column of water. Multiply the height of the column... | |
| Knowles Steam Pump Works - Technology & Engineering - 1898
...increases its capacity four times. Friction u( liquids in pipes increases as the square of the velocity. **The mean pressure of the Atmosphere is usually estimated at 14.7 pounds** to the square inch, so that with a perfect vacuum it will sustain a column of mercury 299 inches, or... | |
| Norfolk Creosoting Co - Building materials - 1900 - 92 pages
...increases its capacity four times. Friction of liquids in pipes increases as the square of the velocity. **The mean pressure of the atmosphere is usually estimated...perfect vacuum it will sustain a column of mercury** 2I.9 inches, or a column of water 33.9 feet high. To find the pressure in pounds per square inch of... | |
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