OCR Text |
Show Economy in Smoke Prevention. After remarking that there can be no hope of the general adoption of means to prevent the fouling of the air of great cities with factory smoke unless it can be demonstrated that the adoption adop-tion of such means will result in the saving of money to the makers of the smoke. Prof. J. A. Switzer of the University Uni-versity of Tennessee records the result of experiments which he has made with smoke consumers based on the principle of Injecting, with steam-jets, fresh air into the furnaces whenever fresh fuel is put upon, the fires. He finds that the claim that such apparatus appara-tus increases the efficiency of the boilers boil-ers by increasing ihe evaporation of the water is weil founded, and that there Is a real economy in their usa. Youth' Companion. |