. American engineer and railroad journal . r for the radiators while the centrifugal pumpsserve to force the water through the heating pipe system. The two air compressors are located between the centrifugalpumps and the main engines, as shpwn in the foreground inthe engine room view. These are the well-known Imperialtype of air compressors, built by the Rand Drill Company, andsupply compressed air for the various uses about the round-house and shops. Each machine has a capacity of compress-ing 1,000 cu. ft. of free air per minute to a pressure of 100lbs. per sq. in. The electrical generating
. American engineer and railroad journal . r for the radiators while the centrifugal pumpsserve to force the water through the heating pipe system. The two air compressors are located between the centrifugalpumps and the main engines, as shpwn in the foreground inthe engine room view. These are the well-known Imperialtype of air compressors, built by the Rand Drill Company, andsupply compressed air for the various uses about the round-house and shops. Each machine has a capacity of compress-ing 1,000 cu. ft. of free air per minute to a pressure of 100lbs. per sq. in. The electrical generating units, of which there are four,consist of standard Westingbouse single-acting non-condensifigcompound engines, direct-connected to Westinghouse dyna-mos of the multipolar engine type, with outboard engines have cylinders 14 and 24 ins. in diameter with a14 in. stroke and operate at a normal speed of 280 rev. permln Their rated capacity at this speed and with the normalsteam, pressure of 150 lbs. Is 250 h. p. These engines are. ENGINE ROOM VIEW, SHOWING STEAM PIPING ARRANGEMENT. RANDAIR COMPRESSORS AT RIGHT. the machine in good repair. In fact, on the average, only fromtwo to three machines will be kept in service, varying accord-ing to the load, which will practically leave one unit free, forrepairs and the necessary attention to be given it at has been left in the engine room, however, for an addi-tional generating unit to be installed, if required by growthof the load. A large 18-panel switchboard is used for controlling the cur-rent from the generating units and also that for the variousdistribution circuits. The board is beautifully constructed of2-in. blue Vermont marble, mounted upon a substantial angleiron frame and located 5 ft. from the wall, so as to permit easeof access to the connections at the rear. An excellent view ofthis board is presented in an accompanying half-tone. Thefittings upon the switchboard were designed for neatness ofappea
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
