. Electric railway journal . by a 16-cp lamp, the end of which is at a point conduit with J4m- transite backing and the lamp sockets almost opposite the center of the sign. The top of the ELECTRIC RAILWAY JOURNAL. [Vol. XXXIII. No. 26. hood is rounded so that no protruding shield is needed toprotect the lamps. The inner upper part of the hood islined with J^-in. vulcabeston or transite and the sides areof sheet steel. High reflective power is obtained by coat-ing the inside of the front and top of the hood with whiteenamel paint. The back of the hood is painted the standardred car color so tha
. Electric railway journal . by a 16-cp lamp, the end of which is at a point conduit with J4m- transite backing and the lamp sockets almost opposite the center of the sign. The top of the ELECTRIC RAILWAY JOURNAL. [Vol. XXXIII. No. 26. hood is rounded so that no protruding shield is needed toprotect the lamps. The inner upper part of the hood islined with J^-in. vulcabeston or transite and the sides areof sheet steel. High reflective power is obtained by coat-ing the inside of the front and top of the hood with whiteenamel paint. The back of the hood is painted the standardred car color so that light will not be reflected forward -2fr The lamp company is required to keep in reserve at theworks a certain number of lamps marked for the use ofthe Brooklyn Rapid Transit Company. Immediately afterthe inspector of the railroad company has accepted lampsfor shipment new packages must be reserved to make upthe quota held in reserve. Lamps are tested in two waysfor two distinct purposes as follows: Inspection at the lamp. Fig. 3—Brooklyn Car Lighting—Details of Bonnet Sign and cast a glare in the eyes of those looking at the signfrom the front of the car. Among the other construction details shown in Fig. 3are the spring hinge attachment to permit the ready re-placement of lamps and the loricated iron pipe for thelighting circuit. At present the block signs are lettered byhand, but it is planned to use an aluminum leaf transferletter system. LAMP SPECIFICATIONS All incandescent lamps for rolling stock are purchasedaccording to specifications prepared by the electrical engi- works by a representative of the railroad company whichallows only such lamps to be shipped to the railroad asare satisfactory from the standpoint of voltage and wat-tage rating when the lamps are burning in a photometerat 16 cp; life and candle-power maintenance tests to satisfythe railroad that the lamps furnished are fulfilling thestandard of illumination guaranteed by the lamp company. METHODS OF
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