Articles liés à The Transition-Curve Field-Book
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Synopsis
Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.
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Présentation de l'éditeur
Field-book is to furnish plain, practical rules and examples for guidance in adjusting and locating a curve, nearly identical with the Cubic Parabola, as aT ransition Curve in connecting circular curves with tangents. In the investigation of the principles upon which the rules are based, it will be seen that with data consisting in great part of familiar approximations used in circular-curve location, and with no mathematics beyond a little algebra and trigonometry, practically exact results are reached in regard to laws of the Transition Curve and its relations to circular curves. By means ofT ransition Curves of less than i$ of central angle, tangents can be connected with all circular curves used on railroads, their combined location presenting little, if any, more difficulty than ordinary circular-curve location. The chords of each Transition Curve are all of the same length, but this length varies with each different rate of curvature of the connecting circular curve. By the use of the General Table, however, which applies to any chord length, the Transition Curve, whether laid off by angles or ordinates, is readily adjusted so as to connect with any circular curve, the two curves having the same rate of curvature, and a common tangent, at their point of connection.
(Typographical errors above are due to OCR software and don't occur in the book.)
About the Publisher
Forgotten Books is a publisher of historical writings, such as: Philosophy, Classics, Science, Religion, History, Folklore and Mythology.
Forgotten Books' Classic Reprint Series utilizes the latest technology to regenerate facsimiles of historically important writings. Careful attention has been made to accurately preserve the original format of each page whilst digitally enhancing the aged text. Read books online for free at www.forgottenbooks.org
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