Page:Popular Science Monthly Volume 92.djvu/126

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��Popular Science Monthly

���After the lower part of the stump is burned away, the upper part settles into the fire and furnishes fuel to burn out the big roots near the surface.

The lowest section of the cone, with a diameter of thirty inches at the bottom, is made out of heavier sheet iron, while the two upper cones, which taper to a diameter of eight inches, may be made of ordinary stovepipe sheet iron.

The whole chimney is about six feet tall, but may be made higher if a stronger draft is desired.

��The chimney conducts the smoke up ward and furnishes draft for the flames

Burning the Roots of Stumps Out of the Ground

IN wooded localities, farmers, who wish to remove the timber from their land in order to utilize the ground for raising crops, will appreciate a simple device for burning out the stumps and roots, in- vented by John H. Hempy, of New Hampshire, Ohio.

The inventor has made ingeni- ous use of the well known fact that draft aids combustion, by constructing a conical chimney of sheet iron in several sections, which is so placed over the ignited stump that a strong draft is created. The air, rushing in from below, by its oxy- gen aids the proc- ess of combustion and keeps the fire burning briskly.

��The water slowly passing around the large heating element in the metal cyl- inder is heated almost instantaneously

��Turn the Switch and You'll Have ■ All the Hot Water You Will Need

FREDERICK POOLE, of Kansas, has invented a water heater which operates electrically. It is even simpler than the gas heater.

An ordinary electric high-resistance heating element is placed in a large cylinder, about a foot in diameter. When water from the small pipe main enters so big a chamber, it travels very slowly. Therefore, when the current is turned through the heating element, the heat from its large radiating surface has an opportunity to make the water hot in so short a time that the method might well be classified as instantaneous.

In any home having electricity, but where, without this attach- ment, it has always been neces- s a r y to light the kitchen range, and then to %\' a i t a n hour or more in or- der to have hot water ; the advan- t a g e s of this quick method of preparing the morning bath, or, in case of emergency, of ob- taining hot water at any hour of the night, will be obvious.

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