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added added to Eq affected amount angles apply bears becomes belongs borne braces centre changed compression consequently considered constant-load counterbraces depth determined distance divided double truss end panel equal equation example feet figure following table form the following full load given gives greater greatest half Hence horizontal chord horizontal strain inclined braces length less load extends longitudinal strain lower chord maximum measured ment movable load moving load multiplied number of panels obtain opposite panel end panel load panel points partial load passing points of Simple proportion rafter reaction represent right abutment segment shown Simple Truss sion Strains in Tons struts Substituting the values tension uniform unloaded abutment upper chord Values vertical component vertical strain weight whence
Page 11 - 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. By H. BAUERMAN.
Page 39 - ALEXANDER (JH). Universal Dictionary of Weights and Measures, Ancient and Modern, reduced to the Standards of the United States of America.
Page 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.
Page 6 - THE THEORY OF STRAINS IN GIRDERS —and Similar Structures— with Observations on the Application of Theory to Practice, and Tables of Strength and other Properties of Materials.
Page 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.
Page 31 - THE GEOLOGY OF PENNSYLVANIA. A Government Survey. With a general view of the Geology of the Unite*d States, Essays on the Coal Formation and its Fossils, and a description of the Coal Fields of North America and Great Britain. By HENRY DARWIN ROGERS, Late State Geologist of Pennsylvania.
Page 28 - 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.
Page 26 - 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.