Rensselaer Semi-Weekly Republican, Volume 22, Number 87, Rensselaer, Jasper County, 19 July 1901 — A Noveity in Alarm Clocks. [ARTICLE]

A Noveity in Alarm Clocks.

A noiseless alarm clock would prove a boon to a host of sufferers from unseasonable din. The suggestion is made that a silent alarm can be given by focusing an electric lamp upon the head of thp person to be awakened, and arranging a switch so that the current to light the lamp would be turned on by the clock at the desired time. It is claimed that the flash of light would invariably arouse the sleeper.