. Railway mechanical engineer . a totalweight, engine and tender, of 449,800 lb. and a tractive effort of40,800 lb. With an increase in weight of per cent, an increasein tractive effort of per cent has been obtained. The boiler of the Lackawanna Pacific type has an outsidediameter of 79^4 in. at the first course, while the diameterof the largest course is S&A in. Baffle plates are installed The engines are equipped with the Woodard outside con-nected throttle*. The throttle rod passes over the outside ofthe boiler jacket and in through the front of the cab. The throt-tle lever is arra
. Railway mechanical engineer . a totalweight, engine and tender, of 449,800 lb. and a tractive effort of40,800 lb. With an increase in weight of per cent, an increasein tractive effort of per cent has been obtained. The boiler of the Lackawanna Pacific type has an outsidediameter of 79^4 in. at the first course, while the diameterof the largest course is S&A in. Baffle plates are installed The engines are equipped with the Woodard outside con-nected throttle*. The throttle rod passes over the outside ofthe boiler jacket and in through the front of the cab. The throt-tle lever is arranged to provide a differential leverage. Theleverage is greatest and the movement of the end of the leveris largest for a given motion of the throttle rod, when the throt-tle is closed. After the throttle valve is unseated the leverageincreases, with a corresponding decrease in the travel of the leverhandle for a given lift of the valve. In this way the travel ofthe lever handle in the cab may be kept within workable limits. --Ci-^-i-| %bner The Lackawanna Pacific Type Boiler along both sides of the dome opening to prevent water fromwashing into the dome when rounding curves. All longitudinalseams are quintuple riveted. Four of the engines have a totalevaporating heating surface of 3,680 sq. ft., while the other,which is provided with a Riegel boiler, has a total of 3,935 sq. evaporating heating surface. The firebox is of the Wootten type, for burning anthracitecoal, and has a grate area of sq. ft. The general design isthe same on all five engines, the Riegel firebox differing only inthe application of a set of 2I4-in. water tubes connecting eachside water-leg .with the crown. There are 3S of these tubeson each side, with a total heating surface of 260 sq. ft., which, sf* «*• c,s> ,/v efJiftfeitXO,
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
