. American engineer and railroad journal . VE. throttle valve chamber is secured outside of the boiler shell andconnects to a cast iron dry pipe from the dome, located just aheadof it, by means of an interior extension. From the throttle valvechamber the steam is carried to the superheater through twoexternal pipes, one on either side, which are very heavily laggedto reduce condensation. This chamber is of cast iron and rests on a brass ball ringhaving a ground joint with the plate secured to the boiler pressure so that when the main valve is opened there is not a sudden large draft
. American engineer and railroad journal . VE. throttle valve chamber is secured outside of the boiler shell andconnects to a cast iron dry pipe from the dome, located just aheadof it, by means of an interior extension. From the throttle valvechamber the steam is carried to the superheater through twoexternal pipes, one on either side, which are very heavily laggedto reduce condensation. This chamber is of cast iron and rests on a brass ball ringhaving a ground joint with the plate secured to the boiler pressure so that when the main valve is opened there is not a sudden large draft of steam. Reference to the illustration will show the detail constructionof these parts and also the arrangement for the bell crank, whichIS connected to the throttle lever in the cab. CYLINDERS. Both sets of cylinders are cast independent of the saddle properbut are joined on the center line in the usual manner. Pistonvalves are used, the high pressure being irside admission and the 301 (August) 302 AMERICAN ENGINEER AND RAILROAD JOURNAL. HIGH PRESSURE CYLINDERS—CANADIAN PACIFIC MALLET.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
