Open main menu

Page:Popular Science Monthly Volume 90.djvu/412

This page needs to be proofread.


��Popular Science Monthly

��Stripped of His Clothes by a Projecting Cutter

THE collection of clo- thing shown in the picture is interesting only as an illustration of how close a careless work- man can come to a serious accident and yet get off practically unscathed. The man in question was cutting an elongated hole in a die block with a cut- ter projecting about three- sixteenths of an inch.

While the drill press was in motion, the elbow of the workman, who was leaning on his work, came in contact with the cutter. The cutter caught his sweater and stripped him of practically his entire clothing, consisting of sweater coat, street coat, overalls, vest, shirt and undershirt.

The beneficent Provi- dence that watches over even the criminally care- less saw to it that he escaped with only a dis- located shoulder.

���Clothes torn from a workman by a projecting cutter on a drill press. He was only slightly hurt

��Saving Coal by Feeding a Fire with Hot Air

OUR fuel bills are high because we get so little heat from the coal we burn. If we could take out of a piece of coal all the heat that Nature has stored up in it for us, our coal bills wouldn't bother us. As it is, we waste most of the coal we burn. Half the heat goes up the chimney and most of the gases arising from a hot bed of coals will not burn because the fire isn't hot enough to make them combustible.

To eliminate this unnecessary waste Charles W. Huse, of Gary, Indiana, has invented an air-feed, or auxiliary draft.

��wTiich Introduces heated air Into the firebox, thus giving a perfect mixture of all the gases and forcing the flames to all parts of the firebox. The air Is ad- mitted through an air- Intake equipped with handles and a regulating shutter. It Is taken to the firebox through a tube. A nozzle on the inner end of the tube distributes the heated air over the flames.

When the furnace Is being fired the door as well as the tube is swung around to one side out of the way; or the tube can be raised, lowered, or turned in any directon. Thus, in banking a fire for the night, the nozzle of the tube is turned up- ward by means of the handle, allowing the heat- ed air to pass through the flues of the boiler or furnace.

The nozzle is made of a specially prepared metal which will stand excessive heat even when the air is not passing through It. The heat supplied by the furnace after the In- device is greatly in ex-

��stallation of the

cess of the amount given out be- fore, even though only one-half the usual quantity of coal be used. The saving, there- fore, is obvious.

���The air-feed, or auxiliary draft, which introduces heated

��The tube as well as the door may be swung around out of the way, or it may be raised, lowered, or turned in any desired direction

�� �