Evening Republican, Volume 16, Number 138, Rensselaer, Jasper County, 8 June 1912 — New Type of Block Signal. [ARTICLE]

New Type of Block Signal.

A new type of automatic block signal, which Is being used on an interurban electric railway west of Cleveland, 0., is believed to furnish a solution of the problem of operating block systems in cold weather. During the last winter the various railroads experienced considerable difficulty owing to the accumulation of ice and frost on the signal lamps. The lighting of the new signal is provided by a single 25-watt tungsten lamp supplied from a trolley through a resistance. A high speed one-tenth horse power motor drives the mechanism, the motor being designed to operate safely through a wide variation of line voltage. Enough heat is furnished by the lamp and its resistance to prevent the accumulation of ice on the lenses and mechanism.