. Railway mechanical engineer . is subjectedis not carried by other construction which meets the require-ments of the law. These conclusions are based upon condi-tions brought out in reports covering accident investigationsin which autogenously welded seams were involved. Duringtlie fiscal 3ears 1916 to 1921, inclusive, the records showthat there were 81 crown sheet failures in which autogenouswelded seams were involved, in 63 of which the weldingfailed. From July 1, 1916, to May 1, 1922, these seamshave been involved in per cent of the crown sheet fail-ures, causing per cent of the
. Railway mechanical engineer . is subjectedis not carried by other construction which meets the require-ments of the law. These conclusions are based upon condi-tions brought out in reports covering accident investigationsin which autogenously welded seams were involved. Duringtlie fiscal 3ears 1916 to 1921, inclusive, the records showthat there were 81 crown sheet failures in which autogenouswelded seams were involved, in 63 of which the weldingfailed. From July 1, 1916, to May 1, 1922, these seamshave been involved in per cent of the crown sheet fail-ures, causing per cent of the total number of fatal acci-dents. It has been said that these accidents were primarilycaused by low water permitting the crown sheet to becomeoverheated but the violence of the explosion and the conse-quent results were greatly increased by the failure of theseams. Another condition, which has on many occasions beenstressed by the bureau, is the application of arch have been manv cases where the tubes did not extend. C. p. Patrick, Retiring President Thomas Lewis, President unsafe and inefticient operation of locomotives contribute tothe efficient operation of the railroads. Nmnber of Boiler Accidents Decreasing Since the establishment of the locomotive boiler inspectionlaw the number of accidents and casualties has been greatlydecreased. The comparison of the first nine months of thecurrent fiscal year with the same period of 1912 shows adecrease of 67 per cent in the number of accidents, 74 p>ercent decrease in the number of persons killed and a 67 percent decrease in the number of persons injured due to thefailure of some part of the locomotive boiler only. Thisresult has been brought about by the requirements of sys-tematic inspection and repairs, not before consistently carriedout. It is a comparatively easy job to wash a boiler thoroughlyand properly and clean an arch tube, yet neglect of suchwork will necessitate repairs costing far more than the sav-ing a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
