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Aa & A'a added to Eq centre of gravity centre side chord strains Cloth compound truss Compres constant load counterbraces depth double truss edition end braces end panel Engineer equa equal feet following table form the following full load greatest vertical strain half loaded half the truss Hence horizontal chord horizontal component horizontal distance horizontal strain inclined braces load covers load extends longitudinal strain lower chord measured ment moving load moving-load number of panels obtain odd number opposite panel end panel load panel point distant parabola partial load pillar points of Simple rafter right abutment secants second member segment Simple Truss sion Strains in Tons struts Substituting the values table of strains Taking moments third member tical tion transverse triple truss truss weight unloaded abutment upper chord vertical braces vertical component vertical equation whence zontal
Seite 28 - A TREATISE on the STEAM ENGINE, in its various Applications to Mines, Mills, Steam Navigation, Railways and Agriculture. By J. BOURNE, CE Eighth Edition; with Portrait, 37 Plates, and 546 Woodcuts, it o. 42s. CATECHISM of the STEAM ENGINE, in its various Applications to Mines, Mills, Steam Navigation, Railways, and Agriculture.
Seite 24 - 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 15 - PLATTNER.— Manual of Qualitative and Quantitative Analysis with the Blow-Pipe. From the last German edition, revised and enlarged. By Prof. Th. Richter, of the Royal Saxon Mining Academy. Translated by Prof. H. B. Cornwall, assisted by John H.
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Seite 24 - One of the most important text-books- for the general surveyor, and there is scarcely a question connected with levelling for which a solution would be sought but that would be satisfactorily answered by consulting the volume." — Mining Journal. " The text-book on levelling in most of our engineering schools and colleges.