Evening Republican, Volume 18, Number 190, Rensselaer, Jasper County, 13 August 1914 — New Type of Lantern Lena. [ARTICLE]

New Type of Lantern Lena.

A new type of lens designed to be used with railway switch and signal lights, tail lights and engine classification lights has been introduced, and apparently eliminates a serious defect heretofore connected with equipment of this kind. The ordinary lens throws a beam of light havlng a spread, usually, of not more than 18 degrees. This made it necessary to adjust signal lights with a great deal of care so that they could be seen by approaching trains, particularly where the track was curved, and often made it difficult! for the engineer on one train to ao« the tail lights of a train ahead. The now lens is so shaped that it throws a beam having a spread of 90 degrees, making the light plainly visible under, any conditions that are likely to cot cur, and without the necessity tor special adjustments.—Popular Mechanics. , * '4. •