Evening Republican, Volume 19, Number 198, Rensselaer, Jasper County, 21 August 1915 — Lamp Trimmers’ Safety Signal. [ARTICLE]

Lamp Trimmers’ Safety Signal.

Arc lamp trimmers frequently find it difficult to lower the arc lamp on a busy street without the danger of having the lamp crashed into by passing vehicles. The driver of a car is more apt to keep his eyes on the road than to look up, and sometimes the glare of the sun will prevent him from seeing ■& lamp that is hanging just high enough for his vehicle to hit it Realizing this danger, a %nan in Minneapolis has devised a signal consisting of a tripod with two white signal wings on which red circles are painted. This the lamp trimmer places on the street under his lamp, and then he may lower the lamp without fear of a collision. —Scientific American.