Evening Republican, Volume 19, Number 11, Rensselaer, Jasper County, 13 January 1915 — Novel Lightning Arrester. [ARTICLE]

Novel Lightning Arrester.

A novel lightning arrester for telegraph and telephone train dispatching circuits has recently been devised. In place of ustng an air gap, a block of carborundum is employed, which furnishes enough resistance to prevent leakage of the current under'normal conditions, but allows charges induced by lightning to pass freely to the ground. These lightning arresters have been found to prevent the clicks commonly produced by static chargee.