. A textbook on the locomotive and the air brake . rtain level has been reached, but at the same time prevent theescape of water thrown up by the action of the pipe o should be at least 12 inches from the riser R insidethe drum. CAR HEATING. §13 COMMIKGLER. 93. Fig. 36 shows a section of the commingler. Waterfrom the heater coil enters through the pipe d and leavesthrough R on its way to the expansion drum. Steam from thetrain pipe enters atp and passes down pipe a, escaping thenceinto the body of the commingler through the small holes shownin the nozzle h. The admission of ste
. A textbook on the locomotive and the air brake . rtain level has been reached, but at the same time prevent theescape of water thrown up by the action of the pipe o should be at least 12 inches from the riser R insidethe drum. CAR HEATING. §13 COMMIKGLER. 93. Fig. 36 shows a section of the commingler. Waterfrom the heater coil enters through the pipe d and leavesthrough R on its way to the expansion drum. Steam from thetrain pipe enters atp and passes down pipe a, escaping thenceinto the body of the commingler through the small holes shownin the nozzle h. The admission of steam to the body of thewater in this manner prevents the noise that is experiencedwhen steam enters a body of cold water directly and withoutbeing previously broken up, as is done bythese holes. Sometimes a portion of theinterior of the casting is filled with smallpebbles surrounding the nozzle, the effectbeing to still further break up the steam,which has to force its way through thesepebbles before striking the main body in the OPERATIIVG THE SYSTEM. 94. Heating a Cold Train.—See that all the steam hose is coupled up andall the train-pipe valves open. Then turnon steam from the engine, and when itblows freely out of the rear-end coupler,partly close the rear train-pipe valve, leaving it open justenough to keep the rear end of the pipe from freezing. Next,open the trap cock full in the heater room, and the dial cockjust enough to heat the car to the proper temperature. Whensteam cannot be obtained, a fire must be started in the heater,observing to shut the dial cock and trap cock, 95. Care of System.—If the overflow pipe from thedrum is clear, the condensed water will begin to escape soonafter the steam is turned on. It should be noted whetherthis occurs or not. When within about a mile of a stationwhere the engine is to be cut off or where cars are to betaken on or off, the rear train-pipe valve should be opened and §13 CAR HEATING. 81 steam shut off at
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
