. American engineer . ar. A number of newfeatures of a minor, but important, nature have been included,some of them being used on this locomotive for the first these might be mentioned the MacBain auxiliary lubri- and are distributed in the normal inanner. The superheater ele-ments are included in forty-three IVi in. superheater flues. Animprovement, which is now being applied to a number of the morerecent locomotive boilers, is an inspection manhole, \(i\\ in. indiameter, located just back of the dome and about 2 ft. ahead of 234 AMERICAN ENGINEER. Vol. 87, No. 5. the back tube she
. American engineer . ar. A number of newfeatures of a minor, but important, nature have been included,some of them being used on this locomotive for the first these might be mentioned the MacBain auxiliary lubri- and are distributed in the normal inanner. The superheater ele-ments are included in forty-three IVi in. superheater flues. Animprovement, which is now being applied to a number of the morerecent locomotive boilers, is an inspection manhole, \(i\\ in. indiameter, located just back of the dome and about 2 ft. ahead of 234 AMERICAN ENGINEER. Vol. 87, No. 5. the back tube sheet. The ^4 in. liner that stiffens the openingaround the dome is carried back to inchide this opening as cover plate of the inspection manhole carries the safetyvalve and it takes the place of the auxiliary dome which hasoften been installed at this point. The stringent requirements ofthe boiler inspection law make it necessary to frequently enterthe interior of the boiler and since, when this is done through. /Omi/es ZO Profile of Line fro Carson to Coalburg, Ohii the ordinary dome, it requires tlie removal of the throttle standpipe, this auxiliary manhole is an improvement that is welcomedby the inspector. Five of the engines are equipped with the OConnor type offire door flange and all have a full installation of flexible stay-bolts with the exception of six longitudinal rows of button headradial stays at the top of the crown sheet. There are four 2 tubes placed in each side water leg. These permitair to enter the firebox over the top of the fuel bed and thus in thickness which fits snugly to the inner faces of the jaws. Thevery wide shoes and wedges are fitted to these crosstie extensionsand have an increased bearing surface of about 350 sq. in. overwhat they would have if they were applied to the frames pedestal binder is also of extra width and a second wedgebolt is provided for handling the wide and heavy wedge. The main journals are IIJ/2
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
