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 239
but, on account of the variable force of the spring,they do not answer as well. To facilitate the opening, the valve is not conical butflat, and rests upon a circular seat. According to Belgianregulations, the breadth of the circular area of contactshould be only 2 millimeters (o-o8 inch); in…
Mechanics, Applied · Mechanical engineering
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