. Electrical world. ft. in length, it ha- boonanchored at the center of each side of the boiler house. A double 0 20 40 60 80 100 vcys it to any required point. This is in the nature of a travelingcrane, and its character can be readily understood from Fig. 10. Theashes are discharged in the basement into a pocket of a capacity of28 cu. ft., which travels on an overhead trolley. From this the ashesare dumped into a skip, which elevates them to the ash bin, fromwhich they ;iie automatically discharged into cars as desired. .All ofthe machinery is operated by direct-current motors. The coal-hand
. Electrical world. ft. in length, it ha- boonanchored at the center of each side of the boiler house. A double 0 20 40 60 80 100 vcys it to any required point. This is in the nature of a travelingcrane, and its character can be readily understood from Fig. 10. Theashes are discharged in the basement into a pocket of a capacity of28 cu. ft., which travels on an overhead trolley. From this the ashesare dumped into a skip, which elevates them to the ash bin, fromwhich they ;iie automatically discharged into cars as desired. .All ofthe machinery is operated by direct-current motors. The coal-hand-ling and ash-conveying systems were de>igned by Heyl and Patter-son, of Pittsburg. Boiler house No. i in its general features is similar to the onealready described. This contains 16 Cahall boilers, which are pro-vided with grates and gas fired. Coal is used whenever the blastfurnace gas is of an inferior quality. Boiler house No. 3, which of the pumping station, is 65 .\ 184 ft. in size. This will con-. Unl^adtnq Machine-^ ^\~^ \v s\^~nJ: Fig. 5.—Section Through Ore Dock and Blast Furnaces. bend is provided in each line, connecting a battery with the mainheader to take care of expansion. A very long elbow is provided ateach boiler, which, by closing two valves located between the headerand the former, can be entirely removed to permit the removal oftubes. A monitor in two halves of a larger diameter than the boileris bolted to the roof over each. This can be entirely removed forrepairs of whatever nature, and also serves as a ventilator. Allsteam valves 12 in. long or larger are by-passed. Drips under oper-ating conditions are exposed, and 8-in. cast-iron pipe is used forblow-offs in the ground -leading to the sewers. Compressed air is tain 32 Cahall boilers gas fired, and will furnish steam to several en-gines in the Bessemer rail mill. As already stated, each pair of blast furnaces will have its ownpower house, containing an equipment of gas engines for drivin
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
