A manual of the mechanics of engineering and of the construction of machines. Designed as a text-book for technical schools and colleges, and for the use of engineers, architects, etc. (1878)
Weisbach, Julius Ludwig, 1806-1871, Du Bois, A. Jay (Augustus Jay), 1849-1915, Buel, Richard H. (Richard Hooker), b. 1842 · New York. J. Wiley & Sons, 1878- · leaf 291
lve is raised. Thesteam entering at Z> surroundsboth valves and their seats onall sides, and presses as muchup as down. But little force,therefore, is necessary to raisethe valve, but as soon as thisis done, the steam can enter through both the ring-shaped orifices between the valves and their…
Mechanics, Applied · Mechanical engineering
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