. Operation of trains and station work and telegraphy . -= SECTION CD. =*- -= FIG. 16. REDUCING VALVE.(Used on Locomotive.) G——Nut. tee, 708b, from which a 2-inch pipe is taken to a verticalautomatic trap, which regulates the discharge of thecondensation. The radiation of the heat from the two pipes along thetruss plank heats the car, the area of radiating surfacebeing proportioned to the size of the car. Plate IV illustrates in a general war the method ofequipping a locomotive for use with ste^m heated is usuallv taken from the steam box. 70 RULES
. Operation of trains and station work and telegraphy . -= SECTION CD. =*- -= FIG. 16. REDUCING VALVE.(Used on Locomotive.) G——Nut. tee, 708b, from which a 2-inch pipe is taken to a verticalautomatic trap, which regulates the discharge of thecondensation. The radiation of the heat from the two pipes along thetruss plank heats the car, the area of radiating surfacebeing proportioned to the size of the car. Plate IV illustrates in a general war the method ofequipping a locomotive for use with ste^m heated is usuallv taken from the steam box. 70 RULES FOR MOVEMENT OF TRAINS Angle Valve, Figure 15, Reducing Valve, Figure 16,and Gauge. Figure 17, are placed in the relationshipshown on the drawing. The first is for admitting thesteam supply, and the Reducing Valve is for controllingthe pressure on the Train-Pipe and should never be usedas a shut-off SIPHON FIG. 17. i~PlPETHREA0/ GAUGE FOR STEAM HEATING.(On Locomotive.) Experience has shown that it is best to carry a pressureof 40 lbs. on the train-pipe for a train of eight cars orless, and that for a greater number of cars, the pressureshould be increased five pounds for each car above is better to have a pressure higher than is needed thanone that is too low, and it is not a, serious drain on thelocomotive. The amount of extra work put on a locomo-tive, by the steam heating of its train, is measured by HEATING AND LIGHTING CARS 72 the amount of water condensed by each car, and isroughly about 40 to 60 lbs. per hour per car. Care should be taken to keep the steam gauge, Figure17, in good order, and it should be tested and corrected,if necessary, at least once each season. Many cases ofreported failures of trains to heat properly are found tobe due to errors of gauges, the pressure actually suppliedbeing far below that indicated by the gauge. STEAM COUPLER TROUBLES. Owing
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Keywords: ., bookcentury1900, bookdecade1910, bookidopera, booksubjecttrainmen
