. The Street railway journal . giving directcurrent at 250 volts. This isconnected in parallel with abattery of 120 chloride storagecells. The cells are placed inventilated lockers, which arecoated inside with asphaltumpaint. The acid fumes fromthe battery are drawn from thelockers and exhausted throughthe ventilators by the same fansthat force the air through theradiators of the water-jacketsystem. The battery and gen-erator leads are taken to aswitchboard, where they areconnected in parallel, and onwhich switchboard circuitbreakers are provided. Thevoltage of the generator is ad-justed with
. The Street railway journal . giving directcurrent at 250 volts. This isconnected in parallel with abattery of 120 chloride storagecells. The cells are placed inventilated lockers, which arecoated inside with asphaltumpaint. The acid fumes fromthe battery are drawn from thelockers and exhausted throughthe ventilators by the same fansthat force the air through theradiators of the water-jacketsystem. The battery and gen-erator leads are taken to aswitchboard, where they areconnected in parallel, and onwhich switchboard circuitbreakers are provided. Thevoltage of the generator is ad-justed with reference to that-ofthe storage battery, with the idea of making the storage batterytake whatever load exceeds the capacity of the generator whenthe car is accelerating on climbing heavy grades. The car is equi])ped with the National Electric Companysautomatic Christensen air brakes, which are supplied from a4-hp electric motor compressor of the ordinary type. This isrun from the generator and storage battery. There is also a. 672 STREET RAILWAY JOURNAL. [Vol. XXV. No. 14. storage battery used in gasoline engine ignition. Besides this,there is another compressor on the car belted from the gasolineengine mentioned. Two trap doors over the cylinder heads make it possible toremove the heads and pistons readily. The gasoline supply iscarried underneath the car in a heavy galvanized iron tank of125 gals, capacity. A small reciprocating pump driven fromthe engine supplies gasoline. All excess gasoline gravitatesback to the reservoir through an overflow pipe. Two methodsof starting the gasoline engine are provided, one is that ofdriving the generator as a motor from the storage battery untilit can draw in a charge of gasoline so as to run itself. To dothis the fields of the generator are fully excited and the arma-ture is connected to the storage battery through a four-pointrheostatic switch. The other method of starting the enginewhich is provided is by compressed air. To provide air
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
