Safety-valvesD. Van Nostrand, 1875 - 100 ページ |
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angle of inclination area of opening area of valve ball Brevet Bridges calculation center of gravity cloth cosine cubic inches depth of seat diameter of valve divide draw engravings Example.-A experiment feet of grate forces act frustum fulcrum given lift given pressure given safety-valve graphic grate surface horizontal distance Hypsometry Iron less than depth lever arm lift is greater lift less lifting clear Locked method Multiply the square natural draft opening due opening in square ordinates orifice parallel forces perpendicular point of application pounds of water pounds per square pressure of steam proportion resultant rules second spring single force slant height spring balance square inch Square of lift Square of sine stationary and marine Steam Engine steam in pounds steam pressure Subtract telegraphy tion U. S. Army U. S. Navy valve in square valve is beveled vertical line water evaporated WEST POINT wood cuts
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