. French railways . night a white light is the signal is at danger the train muststop, but may be authorized by the official incharge of the signal to proceed. (4) The red disc signal. This signal is around plate, painted red with a white edge. It FRENCH RAILWAYS 51 is moved in the same manner as the red and whitechessboard. By night it shows a red light for danger and a white light for line RED DISCS AND SEMAPHORES (). When at danger it may be passed, but itindicates that the line is not clear ahead. Onsome lines, when the train has passed a red discsignal at danger i
. French railways . night a white light is the signal is at danger the train muststop, but may be authorized by the official incharge of the signal to proceed. (4) The red disc signal. This signal is around plate, painted red with a white edge. It FRENCH RAILWAYS 51 is moved in the same manner as the red and whitechessboard. By night it shows a red light for danger and a white light for line RED DISCS AND SEMAPHORES (). When at danger it may be passed, but itindicates that the line is not clear ahead. Onsome lines, when the train has passed a red discsignal at danger it must always stop, after 52 FRENCH RAILWAYS proceeding cautiously far enough to come underthe protection of this signal, but before reachingthe first points or crossings, if any such exist ;on other lines it is allowed to proceed withoutstopping, if called on by the signalman or stationmaster. On the Nord there is an arrangementwhereby, when a red disc is passed at danger,the drivers attention is called to the fact by awhistle in the cab, which is set going by means ofan electric contact. (5) Junction semaphores. These consist offish-tailed semaphores on a single post, in numbercorresponding to the number of directions inwhich it is possible to proceed. The top sema-phore refers to the line most to the left, and so semaphore corresponding to the line whichthe train is to take, points obliquely
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherlondonsmithelderco
