. The street railway review . imiiKli the 4-iii. lilow-rjfT mainliack of the boilers. The stack, feed iniiiips, iheir pipiiiR and the apparatus for con-trolMiiK the steam supply lo tlie liealinR mains are all located inone end of the hoiler room. A 14-in. live steam header extends theleiinth of the hoiler room and is divided in ils center hy a gale hoiler is connected to the live steam header hy loiiK radinspiping lilted with Davis automatic slop and Chapman Kale leaves the huildinK. All the slcani for heating purposes beforeleaving the station must first pass through a 22
. The street railway review . imiiKli the 4-iii. lilow-rjfT mainliack of the boilers. The stack, feed iniiiips, iheir pipiiiR and the apparatus for con-trolMiiK the steam supply lo tlie liealinR mains are all located inone end of the hoiler room. A 14-in. live steam header extends theleiinth of the hoiler room and is divided in ils center hy a gale hoiler is connected to the live steam header hy loiiK radinspiping lilted with Davis automatic slop and Chapman Kale leaves the huildinK. All the slcani for heating purposes beforeleaving the station must first pass through a 22-in. Cochrane oilseparator. The pressure at which steam is supplied to the mains isgovcriierl hy an automatic reducing and regulating valve placed inthe main line hetween the different steam supplies and the oil sep-arator just mentioned. This valve is of the diaphram type. Thesteam siqiply fed to the main through this governing valve may hedrawn from several sources so that at all times economy of operationcan he EXCITER SETS AND SWITCHBOARD. valves next to the header. The live steam header has drip tapsled oflf from its lower side to a parallel 2-in. drip main which dis-charges through a Bundy steam trap into a hot well. This steamheader is mounted on steel I-beams spanning the space between thebacks of the boilers and the partition wall. From one end of thelive steam header a 6-in. auxiliary main is led around the front ofthe boilers and to the other end of the header. This is the basisof a loop system of live steam feeders for the auxiliary machinery so When no engine is running the regulating valve supplies live steamto the heating system direct from the live steam header. Duringcold weather the generating unit driven by the simple engine isused and its exhaust steam fed through the pressure regulating de-vices to the heating mains. When the weather is more moderateand therefore a smaller amount of steam required, the heating mainsare fed from a tap on th
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
