. American engineer and railroad journal . •See American Engineer. January. 1908, page 16. and November,page 430. 1909, CRANK ROCK ISLAND BALANCED LOCOMOTIVE. with sloping back, head and throat sheet. The barrel measures685-6 inches outside diameter at the front ring. It contains206 2-inch tubes and 24 tubes 54 inches ouside diameter, whichci .main the superheater pipes. The tubes are 18 feet boiler has a total evaporative heating surface of 2726 squarefeet, of which the tubes contribute 2551 square feet and the fire- Wide Br.,If on Top. DETAILS OF CVL1XDER CASTING—ROCK
. American engineer and railroad journal . •See American Engineer. January. 1908, page 16. and November,page 430. 1909, CRANK ROCK ISLAND BALANCED LOCOMOTIVE. with sloping back, head and throat sheet. The barrel measures685-6 inches outside diameter at the front ring. It contains206 2-inch tubes and 24 tubes 54 inches ouside diameter, whichci .main the superheater pipes. The tubes are 18 feet boiler has a total evaporative heating surface of 2726 squarefeet, of which the tubes contribute 2551 square feet and the fire- Wide Br.,If on Top. DETAILS OF CVL1XDER CASTING—ROCK ISLAND BALANCED SIMPLE LOCOMOTIVE. 470 AMERICAN ENGINEER AND RAILROAD JOURNAL. box the remainder. The firebox is 102 3/16 inches long and60^6 inches wide and provides a grate area of square of the superheater, the boiler presents no unusualfeatures of construction. The superheater is the builders latestdesign of the fire tube type with side headers, similar to thearrangement applied to a consolidation engine built for theWabash Pittsburgh Terminal Railway,* except that it is de-signed to give a higher degree of superheat. In the design hereapplied, each $% inch tube contains four 1% inch superheatingtubes arranged in double pairs and connected at the ends byreturn bends. The inside members of the two pairs are formedof a single tube which is looped at the front end, thus com-pelling the steam to traverse four times the length of the tubesin its passage from the dry pipe to the cylinders. This ar-rangement not only gives as high a de
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
