. Electric railway journal . tt lamps grouped as shown in the ac-companying illustration, with an additional lamp oneach platform, making a total of twenty lamps. Theheadlight equipment consisted of one standard 4% arc, arranged with an auxiliary incandescentlamp for dimming. The power required for the former installation was3160 watts, i. e., 460 watts for the car lamps and 2700watts for the headlight. Figuring the energy pur-chased by this company at 1 cent per kilowatt-hourfor an average of five hours of night service and for365 days per year, it is seen that the cost of powerf
. Electric railway journal . tt lamps grouped as shown in the ac-companying illustration, with an additional lamp oneach platform, making a total of twenty lamps. Theheadlight equipment consisted of one standard 4% arc, arranged with an auxiliary incandescentlamp for dimming. The power required for the former installation was3160 watts, i. e., 460 watts for the car lamps and 2700watts for the headlight. Figuring the energy pur-chased by this company at 1 cent per kilowatt-hourfor an average of five hours of night service and for365 days per year, it is seen that the cost of powerfor lighting one car amounted to approximately $ year. The redesigned lighting system for the remodeledcars consists of seven 72-watt lamps with reflectors,together with one similar platform lamp. The eightlamps are wired in two parallel circuits, each havingfour lamps in series, and connected in series with aGolden Glow headlight equipped with a 12-in. mirroredglass reflector and a 150-watt concentrated The power required for this installation is 726 watts,the eight interior lamps requiring 576 watts and leav-ing only 150 watts for the headlight. The cost of light-ing for the improved installation, calculated on the samebasis as before, amounts to $ per car per year,effecting a saving of $ per year. The safety fixtures used are of the round base,straight-pendant type, fitted with heavy-density opalglass reflectors for properly distributing the light. Thefixture clamps the shade by means of flexible metalfingers to provide for expansion and contraction of theglass and to prevent rattling, as well as to cushion thereflector against severe jolts of the car. The Golden Glow headlight, with a 150-watt lamp,provides illumination equal to the 4V2-amp. luminousarc. It also gives a soft yellow beam of light for whichmotormen almost invariably express their satisfactionafter becoming accustomed to the colored rays. Fordimming the headlight within city lim
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