. The street railway review . es current to the station. This goes to the five There are eight water tube boilers tested for a pressure of300 lbs., the pressure of the station being only 160 lbs. Allthe high pressure steam valves were furnished by the CraneCompany. Two vertical oscillating engines drive the chauigrates, the exposed furnace surface of each being 7 ft. 6 8 ft. 6 in. The boiler feed water is pumped by three Blake com-pound feed pumps, 10 and 7x12 in., from either the citymains or the condenser discharge. Each boiler has a hotwater meter attached and two meters register the
. The street railway review . es current to the station. This goes to the five There are eight water tube boilers tested for a pressure of300 lbs., the pressure of the station being only 160 lbs. Allthe high pressure steam valves were furnished by the CraneCompany. Two vertical oscillating engines drive the chauigrates, the exposed furnace surface of each being 7 ft. 6 8 ft. 6 in. The boiler feed water is pumped by three Blake com-pound feed pumps, 10 and 7x12 in., from either the citymains or the condenser discharge. Each boiler has a hotwater meter attached and two meters register the waterwhich is supplied to the station from the city water steel plate stack is 200 ft. high and 13 ft. 8 in. internaldiameter at the top. The plates are 5^-in. at the bottom andJ-^-in. at the top, with a fire brick lining from g in. to 4/^ up in the interior. There are two flues extending fromthe boilers to the stack, one containing two Green fuel econ-omizers, the hot gases being drawn into this one from a. FIG. 5.—COOLING TOWER. FIG. 6. —BOILER ROOM. FIG. 7.—COOLING TOWER. cooling tower motors, the two motors running the coalhandling machinery, the crane motors, 200 incandescentlamps and 20 enclosed arc lamps. A recording wattmeterkeeps a record of all the energy so used. The four panelsto the right are for the eight feeders running out of thestation. Each panel has two single pole switches, two circuitbreakers with the two ammeters between them. The five motors mounted in the engine room are connect-ed by shafting to the lo-ft. fans of the Barnard coolingtower, which is notable for its great size. The tower, madeby the Wheeler Condenser & Engineering Company, is 64ft. long, i6}4 ft. wide and 34 ft. high, and beneath it is atank 6 ft. deep. The arrangement of the 20-in. dischargepipe and connections to the tower is plainly shown in and 7. From each of the five lo-in. branch pipes the hotwater is discharged into a header, from which it is spraye
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