Field-book for railroad engineers. Containing formulas for laying out curves, determining frog angles, levelling, calculating earth-work, etc., etc., together with tables of radii, ordinates deflections, long chords, magnetic variation, logarithms, logarithmic and natural sines, tangents, etc., etc (1877)
Henck, John Benjamin, 1816-1903 · New York : D. Appleton · leaf 65
rthis purpose we have B F ^ R, B K= R — h + d, and the included&ng\QFBK= 180=^ — 6. Find in the trianale EFK the angles FE Kand EFK. For this * The triangle AEK does not correspond precisely with BEKm^ ^, A beingon the centre line and B on the outer rail ; but the difference is too slight to… … Fig. 21. Article IV, — Miscellaneous Problems. 65, Problem. Given A B = a [Jig. 22) and the perpendicularB C = b, to Jind the radius of a curve that shall pass through C and thetangent point A. Solution. Let 0 be the centre of the curve, and draw the radii A 0and C 0 and the line CD parallel to A…
Railroad engineering · Ferrovias
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