Evening Republican, Volume 22, Number 202, Rensselaer, Jasper County, 21 August 1919 — Cold Electric Light. [ARTICLE]

Cold Electric Light.

Electric lights heat up, and an inventor, William L. Barnard, comes forward —that is to the patent office — with a scheme for making your electric lights cold. Heat is cumulative. You turn your lights on. They brighten immediately, but it takes them a few minutes to grow warm. This inventor turning off the light before it has had time to develop any great heat. That.is, he provides an incandescent electric lamp with numerous filaments, instead of the usual single one. These filaments are connected with a rotary switch which turns each filament on and off at intervals, but the periods, of luminosity of the filaments are so spaced that a continuous Illumination results. In other words, when one is switched off others are switched on', so that there is no discontinuity.