. The railroad and engineering journal . olves in a sufficient way the problem of simple inter-locking, and only requires the use of one hand by the sig-nalman. IV.—THE SYSTEM. The central signal stations of MM. Siemens and Halskedid not contain an interlocking system, in the strict senseof the word ; they are stations of the ordinary type of theblock system, arranged to interlock some switches withsignals, the levers of which are made immovable by induc-tion currents, sent out from a signal station, which isalways placed close to the office of the this inte
. The railroad and engineering journal . olves in a sufficient way the problem of simple inter-locking, and only requires the use of one hand by the sig-nalman. IV.—THE SYSTEM. The central signal stations of MM. Siemens and Halskedid not contain an interlocking system, in the strict senseof the word ; they are stations of the ordinary type of theblock system, arranged to interlock some switches withsignals, the levers of which are made immovable by induc-tion currents, sent out from a signal station, which isalways placed close to the office of the this interlocking is not done in the cabin of the signal-man, for the reason that in Germany it is not usual to con- Vol. LXIII, No. I.] ENGINEERING JOURNAL.^ 23 centrate the working at a distance from the switches ; byorders of the general administration the levers of these re-main scattered around the station, and at the end of thelever of each switch there is a locking bolt which makes itimpossible for the switch to be opened by a switchman. unless the signals have been put in the proper position ;and as these are locked electrically from the central signalstation, it follows that the station-master indirectly con-trols the position of all the switches. This arrangement.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
