. Electric railway journal . mthe dispatchers officeand is clearly visiblefor many blocks in anydirection from this cor-ner. All car lines inthe city pass within one,two or three blocks ofthis corner, so that theone signal serves for alllines. It is equippedwith two 46-watt only the red lightis showing this indi-cates one point of heat; only the green light, twopoints of heat, and with both red and green lightsshowing, three points of heat. Previously, a cluster of lights at two locations wasused for this purpose, but the dispatcher could indicateonly when one point of heat should b
. Electric railway journal . mthe dispatchers officeand is clearly visiblefor many blocks in anydirection from this cor-ner. All car lines inthe city pass within one,two or three blocks ofthis corner, so that theone signal serves for alllines. It is equippedwith two 46-watt only the red lightis showing this indi-cates one point of heat; only the green light, twopoints of heat, and with both red and green lightsshowing, three points of heat. Previously, a cluster of lights at two locations wasused for this purpose, but the dispatcher could indicateonly when one point of heat should be on. If morethan this was necessary, he was compelled to tell eachof the car crews as they reported at the ends of thelines, every car being individually dispatched on theDenver system. The new scheme displaced seventy60-cp. lamps, which were used in the older signals, andsubstituted the two 46-watt lamps, and at the same timesimplified the work of the dispatchers and gave themsupervision of the heating current HEAT CONTROL SIGNAL IN-STALLED IN HEART OF DENVER Home-Made 4000-Lb. Air Hoist for theWheel Yard To increase the storage capacity of its wheel yardand to save time in placing or removing wheels, GeorgeSt. Pierre, superintendent of equipment San Francisco-Oakland Terminal Railways, devised the hoistwayshown in the accompanying illustrations. The wheel storage, which is three tracks wide andabout eighteen wheel sets deep, is flanked by beam
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
