. American engineer and railroad journal . e elastic limit of metal that should be used, that thebreak cannot, have been caused by bad designing and abnormal strains due to excessive velocity. It would seem, thenthat the metal must, have been intrinsically weak, the clean, close-grained appearance of the fractureThis is given merely as a conjecture to explain the cause othe accident, and without any definite data regarding the Let an overloaded motor work irregularly; let a condenser choke up or empty while starting or stopping ; let, the resistances be ever so variable, and w
. American engineer and railroad journal . e elastic limit of metal that should be used, that thebreak cannot, have been caused by bad designing and abnormal strains due to excessive velocity. It would seem, thenthat the metal must, have been intrinsically weak, the clean, close-grained appearance of the fractureThis is given merely as a conjecture to explain the cause othe accident, and without any definite data regarding the Let an overloaded motor work irregularly; let a condenser choke up or empty while starting or stopping ; let, the resistances be ever so variable, and we will seethe ropes oscillat-ing, storing up, by their elasticity, the variations of speed oreffort, while Hie receiving lines of shafting do not vary in theregularity of their motion ; provided, of course, that the varia-tions of power and resistance arc not too great. This peculiarity has been of great service in very manyeases, especially in transmissions that are driven by gearingand by rigid shafting whose motion cannot be FLY-WHEEL THAT BURST AT THE PLANT OF THE HUDSON ELECTRIC LIGHT COMPANY, AT HOBOKIN, N. J, actual quality of the metal that was used. The breaks sIidwiiare a few of those that occurred in approximate positions only. ROPE AND BELT TRANSMISSION.* By V. DtJBREUIL. The striking feature in the use of ropes is the uniformityof motion, the absence of noise, even at the fastenings, whenthe ropes are well maintained, and the sensitiveness of all ofthe strands the moment anything abnormal occurs in the poweror the resistance. * Abstract of n paper n-ud In-forc Hie Society ofthc Civil Engineers ofFrance. Ropes are also of great service where the two lines of shaft-ing to be connected are not, perfectly parallel. We can thenopen the grooves, work the strands crossed, and carry thepower off in almost any direction. Diameter of Pulleys and Hopes.—The resistance due to thestiffness of the ropes being teprcented by the formulaa iV R = .104 , in which H is e
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
