Identifier: americanengineer69newy (find matches)
Title: American engineer and railroad journal
Year: 1893 (1890s)
Authors:
Subjects: Railroad engineering Engineering Railroads Railroad cars
Publisher: New York : M.N. Forney
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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point where the temperature was ss and driven by a rudely made fan through a galvanized iron pipe, in which its tempera lure rose to lus , the pipe being so disposed thai it pointedstraight for the men who were working, Stripped to the «about 15 ft away. The fan must have hail a very low effi-ciency, perhaps not more than 80 or lb per cent. ; but whinthe Steam was turned on a little and the fan ran faster one ofthe men came back saying it was cold, anil turned down thesteam. In other cases of successful ventilation of working men the respective temperature of working place and air supply were .IS and 96°, 112° and 109°, III and 111, 112and 111°, and others much higher could be adduced. These temperatures are comparable to those which obtain inSteamer boiler rooms under ordinary conditions ; and it wouldbe possible to show that the higher temperatures in tropicalclimates or under unfavorable conditions are not greater thanthose which have been met successfully on land. The follow-
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TEN-WHEELED LOCOMOTIVE, BUILT,BY! THE BROOKS LOCOMOTIVE WORKS FOR ;HIGH-SPEED SERVICE ON THE LAKE SHORE & MICHIGAN SOUTHERN RAILWAY. there is only one method by which the human frame can bemade to support active labor in high heat, a method basedupon the unchangeable laws of nature. The fundamental principle which must underlie any suc-cessful device of this kind is that the body must be made itsown refrigerator, and there is but one mode of applying thisprinciple—a stream of comparatively dry air must be so direct-ed upon the mans body that his perspiration will be vaporizedrapidly and the refrigerating effects of evaporation produced.The body should be as nearly nude as the strong radiationfrom the furnace will permit, and the men should drink freely,preferably of cool barley water. The change from the existing system which we propose isradical. At present the method of ventilation employed maybe called the room method, as opposed to the method of indi-vidual refrigeration. A

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