. Electric railway journal . ion 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
. Electric railway journal . ion 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 limits, a specialdimmer has been devised and application for a patent. SIMPLIFIED DIAGRAM OF REDESIGNED CAR LIGHTING CIRCUIT upon it has been made. By turning a snap switch theheadlight is dimmed without affecting the car lamps,and also without causing a great loss of energy as inthe series resistance method. Since the laws of Washington, D. C, require thatthe headlight be turned out when a car stands at aterminal, these cars were each equipped with a com-pensating resistance equal to that of the headlight lampwhich it replaces when cut into the circuit. Thisresistance, when used, obviously has no effect upon theinterior car lamps and may be used in the circuit withthem when a headlight lamp is burned out and is beingreplaced. In case one of the car lamps burns out, theheadlight is burned temporarily in series with the re-maining circuit at about one-half its usual intensity. The cost of the installation, done while the cars weregoing through the shop, was about $85 per car. Theaverage annual maintenance cost of an arc headli
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