. Railway mechanical engineer . and 5 on one machine andOperations 6, 7, 8, 9 and 10 on the other machine. Bothmachines are in operation continuously when Opera-tions 2, 5, 6 and 10 are being performed, at which time onemachine is in operation. average of 40 castings, erjuivalent to 80 rings, can besawed on one power hack saw during one eight-hour shift. average of 22 rings are machined from 11, 12-in. castingson two semi-automatic machines operated by one man duringone eight-hour shift. Twenty rings are machined from 1014-in. castings on two semi-automatic machines operatedby one mach
. Railway mechanical engineer . and 5 on one machine andOperations 6, 7, 8, 9 and 10 on the other machine. Bothmachines are in operation continuously when Opera-tions 2, 5, 6 and 10 are being performed, at which time onemachine is in operation. average of 40 castings, erjuivalent to 80 rings, can besawed on one power hack saw during one eight-hour shift. average of 22 rings are machined from 11, 12-in. castingson two semi-automatic machines operated by one man duringone eight-hour shift. Twenty rings are machined from 1014-in. castings on two semi-automatic machines operatedby one machine operating during one eight-hour shift. All packing rings are thoroughly inspected by competentinspectors before being delivered to the storehouse. Therings are inspected for workmanship and accuracy as wellas being gaged and it is found that 95 per cent of the ringsgage within .003 in. of being perfectly round. The records indicate that the rings manufactured from thistype of give exce]jtionally good P,.ilcr Mal:CT the Ofciiin^ nf tlu- Con: Master Boiler Makers Hold Annual Convention Survey Made of Autogenous Welding Practice on Prin-cipal Roads and Methods of Treating Hard \^ ater THE thirteenth annual convention of the Master BoilerMakers Association opened Tuesday, May 23, at theHotel Sherman, Chicago, with Charles A. Patrick,president of the association, in the chair. During the courseof the meetings about 275 members registered, which numberincluded representatives of practically every road in thecountrv. The opening invocation was given by past-presidentJohn H. Smythe, chaplain of the association. In the absence of Mayor Thompson, who was to liave ad-dressed the association, his re])resentative, W. D. Sallied, corjioration counsel of Chicago, extended official^Tietings to the association. Mechanical Problems to Be Solved H. T. Bentley, superintendent of motive power of theChicago &i Xortii Western, then described the real work ofth
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
