Safety-valvesD. Van Nostrand, 1875 - 100 Seiten |
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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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Seite 109 - From the last German edition, revised and enlarged. By Prof. Th. Richter. of the Royal Saxon Mining Academy. Translated by Prof HB Cornwall, Assistant in the Columbia School of Mines, New York assisted by John H.
Seite 102 - A Treatise on the Metallurgy of Iron : Containing Outlines of the History of Iron Manufacture, Methods of Assay, and Analysis of Iron Ores, Processes of Manufacture of Iron and Steel, etc., etc.
Seite 101 - Lowell Hydraulic Experiments. Being a selection from experiments on Hydraulic Motors on the Flow of Water over Weirs, in Open Canals of uniform rectangular section, and 'through submerged Orifices and diverging Tubes. Made at Lowell, Mass.
Seite 113 - Levelling. A TREATISE on the PRINCIPLES and PRACTICE of LEVELLING ; showing its Application to Purposes of Railway and Civil Engineering, in the Construction of Roads ; with Mr. TELFORD'S Rules for the same. By FREDERICK W. SIMMS, FGS, M. Inst. CE Sixth Edition, very carefully revised, with the addition of Mr.
Seite 113 - New method of correcting Lunar Distances, and improved method of finding the error and rate of a chronometer, by equal altitudes, 8vu, cloth 2 oo CHURCH (JOHN A.) Notes of a Metallurgical Journey in Europe.
Seite 115 - A Treatise on the Method of Government Surveying as prescribed by the US Congress and Commissioner of the General Land Office, with complete Mathematical, Astronomical and Practical Instructions for the use of the United States Surveyors in the field.
Seite 111 - Modern Marine Engineering, applied to Paddle and Screw Propulsion. Consisting of 36 colored plates, 259 practical woodcut illustrations, and 403 pages of descriptive matter. The whole being an exposition of the present practice of James Watt & Co. , J. & G. Rennie, R.
Seite 115 - MANUAL OF SIGNALS, for the Use of Signal Officers in the Field, and for Military and Naval Students, Military Schools, etc. A new edition, enlarged and illustrated. By Brig.-Gen.
Seite 111 - THE GEOLOGY OF PENNSYLVANIA: A Government Survey ; with a General View of the Geology of the United States, Essays on the Coal- Formation and its Fossils, and a Description of the Coal-Fields of North America and Great Britain. By PROFESSOR HENRY DARWIN ROGERS, FRS, FGS , Professor of Natural History in the University of Glasgow.
Seite 105 - A Text-Book of Geometrical Drawing for the use of Mechanics and Schools, in which the Definitions and Rules of Geometry are familiarly explained; the Practical Problems are arranged from the most simple to the more complex, and in their description technicalities are avoided as much as possible. With illustrations for Drawing Plans, Sections, and Elevations of Railways and Machinery: an Introduction to Isometrical Drawing, and an Essay on Linear Perspective and Shadows.