. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . nnet with pack-ing nut and gland is screwed into top ofcage after cage has been drilled andtapped to receive same, then a longer stemof the proper size is attached to the valve,after which a hand wheel supplied withthe proper signs to indicate the positionsof the valve, such as closed front andback. The valve is then assembled andis ready for service. Locomotive Boiler Equipped with Superheater Appliances Changed Into a Corrugated Fire-Box Boiler By WM. H. WOOD, Mechanical and Constructing En
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . nnet with pack-ing nut and gland is screwed into top ofcage after cage has been drilled andtapped to receive same, then a longer stemof the proper size is attached to the valve,after which a hand wheel supplied withthe proper signs to indicate the positionsof the valve, such as closed front andback. The valve is then assembled andis ready for service. Locomotive Boiler Equipped with Superheater Appliances Changed Into a Corrugated Fire-Box Boiler By WM. H. WOOD, Mechanical and Constructing Engineer, Media, Pa. The illustrations taken from the blue In the Wood boilers the total firebox shows a reduction of about 729 stays. prints prepared by one of the locomotive and combustion chamber heating surface It will be noted that this extra firebox companies will, no doubt, be of interest to is 272 square feet. In the regular type of surface is clear gain, as the fire grate all railroads, inasmuch as the phenomenal boiler the total heating surface is 218 areas in both boilers are the same. In. . .>- gain of fifty-four square feet of heatingsurface in this type of boiler, which ispractically twenty per cent, of the totalheating surface of the firebox and com-bustion chamber, where forty-five percent, of the work is done. VIEW OF CORRUGATED FIREBOX IN WOOD LOCOMOTIVE BOILER. square feet. The number of stays in theWood boiler is 1,058. The number ofstays in the regular boiler is 1,787. Thereduction of stays in the Wood boiler ison account of the extra strength given tothe lire box by the corrugation, which order to illustrate the gain, it will be re-membered that a few years back the Mas-ter Mechanics Association Committeecame to the conclusion that the fireboxheating surface was equal to ten to oneof the tube surface. December, 1915. RAILWAY AND LOCOMOTIVE ENGINEERING. 403 R. M. K. Locomotive Valve Gear By R. W. ROGERS, Instructor of Apprentices, Erie Railroad The followi
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