. The universal assistant, and complete mechanic : containing over one million industrial facts, calculations, receipts, processes, trade secrets, rules, business forms, legal items, etc., in every occupation, from the household to the manufactory. ,electricity, etc., in the boiler, the simple truth is reached when wecome down to the soUd basis of cause and effect; and in every caseof boiler explosion we will find that the trije cause is simply imperfectstrength in the boiler. Tlie deficiency may arise frorn defectivematerial, or faulty workmanship, overheating, overpressure, over-liring, burn
. The universal assistant, and complete mechanic : containing over one million industrial facts, calculations, receipts, processes, trade secrets, rules, business forms, legal items, etc., in every occupation, from the household to the manufactory. ,electricity, etc., in the boiler, the simple truth is reached when wecome down to the soUd basis of cause and effect; and in every caseof boiler explosion we will find that the trije cause is simply imperfectstrength in the boiler. Tlie deficiency may arise frorn defectivematerial, or faulty workmanship, overheating, overpressure, over-liring, burning of the boiler-plates, caused by shortness of orthe tolerance of scale or deposits in the boiler, or by criminal negli-gence.^ These are only different form* or phases of expressing-thetruth just noted, and whoever constructs a boiler absolutely free fromliability to destructive ex]>losion, has achieved an engineering triumphwhich entitles him to recocrnition as a pubUc benefactor. Aa one whsis cognizant of much suffering arising from the causes enumeratedaboTS, the writer can truthf oily aver that he is moved by no motlTW MACHINISTS AND ENGINEERS DEPARTMENT. 393.•&er than those of humauity in making favorable meution of. The Root Wrought Iron Safety Boileb. Tliese boilers, made by the Abendroth & Root Manufacturing Com-pany of New York, are constructed on correct scientific principles, oil•what is Jvuown as the sectional system, beina; composed entirely ofwrought iron lap-welded tubes, which are tested to a pressure of 500lbs. per square inch, and are said to be capable of withstanding twoor three times that pressure. These tubes, 4 inches in diameter, and10 feet in length, are lap-welded, consequently tliey have no rivettedjoints, thereby enhancing their strength. The boiler is constructedentirely of these uniform and interchangeable parts, perfectly freefrom explosion, easilj enlarged or diminished in size, all parts beingeasily accessible for cleaning, rep
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Keywords: ., bookcentury1800, bookdecade1870, booksubje, booksubjecttechnology
