Evening Republican, Volume 19, Number 56, Rensselaer, Jasper County, 8 March 1915 — Automatic Train-Stop System. [ARTICLE]

Automatic Train-Stop System.

enters a block already occupied by another train and a stop signal is disregarded, or when the train travels at excessively high speed or when part of the circuit is interrupted or deranged for any reason. —Scientific American,