. Root, not operate on the principle of a fan, that is, by imparting slow motion causing much less wear upon the belting and at Connersville, Ind., an establishment devoted to the pro- momentum to the air by running at a great velocity, but by running parts, duction of the Root rotary blower. From… … power required to drive fans is saved by reason of the slow volume of 100,000 cubic feet of air per minute. speed on which the Root blower does its work, from 100 to Referring to the mechanical arrangement, it should be The subject of our article is also largely employed abroad, The power, instead…
Internet Archive · Public domain (published before 1931). Free to use for anything.