. The science of railways . S€C TiOUt A B Fig. 133. JUMP CROSSING FROGS FOR STEAM AND STREET RAILROADS. STANDARDS OF CONSTRUCTION. 235 Switch stands are so arranged that they throwthe switch and display a signal at one opera-tion; the signal is arranged to indicate a cleartrack on the main line or show the train crewthat the switch is open to enter the siding. Withall split and safety switches where the train cantrail through and open the switch, an automaticor safety switch stand should be used to preventeither the points of the switch or the switch rodbeing damaged. Figs. 134 and 135 illustr
. The science of railways . S€C TiOUt A B Fig. 133. JUMP CROSSING FROGS FOR STEAM AND STREET RAILROADS. STANDARDS OF CONSTRUCTION. 235 Switch stands are so arranged that they throwthe switch and display a signal at one opera-tion; the signal is arranged to indicate a cleartrack on the main line or show the train crewthat the switch is open to enter the siding. Withall split and safety switches where the train cantrail through and open the switch, an automaticor safety switch stand should be used to preventeither the points of the switch or the switch rodbeing damaged. Figs. 134 and 135 illustrate a. Fig. 134. RAMAPO SAFETY SWITCH STAND, AS IT APPEARS WHEN HALF THROWN BY HAND. 236 BUILDING AND REPAIRING RAILWAYS.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1900
