. Building and repairing railways . BOTTOM CONNECTION SIPE CONNECTION Fig. 222. ARRANGEMENT OP THE SWITCH POINTS FOR A THREE THROWSPLIT SWITCH. the section foremans eye, often to the injury ofthe rails and rolling stock. * Often in practice the frog angle and switchpoint of a split switch and the rail thrown andfrog angle of a stub switch are taken as part ofthe curve of the rail from the headblock to thefrog. This is not mathematically correct, especi-ally with the angle of the frog. The Elliot Frog& Switch Company have given dimensions in de-tail for laying out switches where the switchpoint
. Building and repairing railways . BOTTOM CONNECTION SIPE CONNECTION Fig. 222. ARRANGEMENT OP THE SWITCH POINTS FOR A THREE THROWSPLIT SWITCH. the section foremans eye, often to the injury ofthe rails and rolling stock. * Often in practice the frog angle and switchpoint of a split switch and the rail thrown andfrog angle of a stub switch are taken as part ofthe curve of the rail from the headblock to thefrog. This is not mathematically correct, especi-ally with the angle of the frog. The Elliot Frog& Switch Company have given dimensions in de-tail for laying out switches where the switchpoint and frog angle are taken as tangent to thecurve of the rail from the headblock to the frog;Figs. 223 to 230 are single throw split switches *The authors on railway location and problems connectedwith laying out curves, etc., give the mathematical demonstra-tions of side track work. See Appendix K. CONSTRUCTING TRACK. 305. Fig. 223. SINGLE THROW SPLIT SWITCH No. 6; RIGID FROG 6 FEET LONG.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
