Evening Republican, Volume 21, Number 278, Rensselaer, Jasper County, 10 December 1917 — Electric Fan That Makes No Wind Among New Inventions [ARTICLE]

Electric Fan That Makes No Wind Among New Inventions

An Interesting development of the electric fan is a - series of blades formed on new lines. Instead of the propeller-shaped blade, the present device Is composed o!f sheets of metal rolled tn a cylindrical shape, one cylinder being within the other. The action of this fan when attached to a motor in the ceiling is to draw the air upward w-ith a gentle draft, Instead of blowing It violently downward ftom the upper part of the room. The inventor claims that this results In far more effective cooling, as the heated air is nearest the ceiling, while the cool air is near the floor. Hence to draw the cool air upward gives the best results. The action of the fan is so gentle that it does not tend to raise the dust from the floor, yet it effectively circulates the dir and reduces the temperature in short order. It has been tried out with success in restaurants and offices and is adapted to factories, halls and other places where perfect ventilation is required. —Scientific American.