. American engineer . epower 17-1 \^ Motor running light requires iVi horsepower. Motor and machine running light require horsepower. Wheel, 24 in. diameter, 9 in. face; speed of wheel, 1,036 ; surface cutting speed, ft. per mm. grinding and the manufacturers now state that an average pro- The maintenance of the whole outfit is slight, as the steam duction of three complete axles per hour can be guaranteed with forms an elastic cushion between the vanes, which tends to this machine. decrease the wear. The leakage will be small between the 154 AMERICAN
. American engineer . epower 17-1 \^ Motor running light requires iVi horsepower. Motor and machine running light require horsepower. Wheel, 24 in. diameter, 9 in. face; speed of wheel, 1,036 ; surface cutting speed, ft. per mm. grinding and the manufacturers now state that an average pro- The maintenance of the whole outfit is slight, as the steam duction of three complete axles per hour can be guaranteed with forms an elastic cushion between the vanes, which tends to this machine. decrease the wear. The leakage will be small between the 154 AMERICAN ENGINEER. \oL. 86, No. 3. vanes, as the difference in pressure between them is small. Therotor bearings, being in the heads of the turbine, will need noextensive packing, as they are surrounded with the exhauststeam. The lubricating system of the bearings is so designedthat each bearing acts as an individual oil pump, circulating theoil through the bearing between the shaft and the bushing with COAL PUSHER FOR TENDERS. Spiro Steam Turbine. Rated at 135 H. P. a positive pressure. In this way an oil film is maintained as longas there is any oil in the reservoirs. Tests which have been made on this type of turbine show thatwith an initial pressure of lbs., h. p. was obtained ata speed of 2,450 r. p. m. The water used per brake horse powerwas lbs. Another test, at an initial pressure of 115 lbs.,showed 151 h. p. at a speed of 2,710 r. p. m., with a water con-sumption of lbs. per brake horse power. Both of these testswere made non-condensing. The special uses for this turbine are A considerable number of recently-built locomotives have beenfitted with a mechanical arrangement for making the fuel supplymore convenient for the fireman, as well as mixing the slack,wliich normally collects in the coal space of the tenders, withthe fresh fuel. An outline drawing of this arrangement asapplied to a Great Northern tender was given on page 427 of theNovember, 1911, issue
Size: 2043px × 1223px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
