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 72
tangent and A D,ND E shows the change between A D produced and D E, P E F thechange between DE produced and E F, R FB the change between£Fproduced and FB, and, lastly, SB Fthe change between B F ])ro- MISCELLANEOUS PROBLEMS. 53 duccd and the second tangent. But the iing^lc of intersection (§… … II. To determine the tangent points. This will be done if we findthe distances .1 Cand B C; for then any other distances from Cmaybe found. It is supposed that the distance A B, or the distances A Z),DE, E F, and FB have been measured. Tf one line A B connects A and B. Jind A C and B C in the…
Railroad engineering · Ferrovias
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