. American engineer and railroad journal . ecause one mancan tend 30 oil burners of 100 boiler horse-power each. Withplants of 500 horse-power and over, a saving will be effectedin the labor item. Under average conditions of coal and wagesthis will amount to about 15 cents per ton of coal for powersin excess of 500 horse-power, and in addition to this there isa saving in handling ashes and coal. Oil will be cheaper inlabor charges than coal used in stokers, for plants of over1,000 horse-power. The ash charge is about 10 cents per tonof coal used. In furnace repairs, this report gives oil the a
. American engineer and railroad journal . ecause one mancan tend 30 oil burners of 100 boiler horse-power each. Withplants of 500 horse-power and over, a saving will be effectedin the labor item. Under average conditions of coal and wagesthis will amount to about 15 cents per ton of coal for powersin excess of 500 horse-power, and in addition to this there isa saving in handling ashes and coal. Oil will be cheaper inlabor charges than coal used in stokers, for plants of over1,000 horse-power. The ash charge is about 10 cents per tonof coal used. In furnace repairs, this report gives oil the ad-vantage of 2 cents per ton of coal used. PLATE FOR LAYING OFF DUNBAR PACKING. A convenient device for saving time in laying off Dunbarpacking rings, devised by Mr. George Wales, is in use at theWest Burlington shops of the Chicago. Burlington & QuincyRailway. It is in the form of a cast-iron plate 1 in. thick and21 ins. in diameter, with circles scribed upon it for the vari-our sizes of pistons. The plate is drilled with %-in. holes. Plate for Dunbar Packing. % in. deep at intervals along the circles, and to these holespins are fitted to hold the packing. A small metal T-squareis used to mark the packing. The diameters of packing ringsprovided for range from 15 to 20 ins., inclusive, and the boreof each ring, to which the pins are set, is % in. less in diam-eter for each. The manner of using the plate will be apparentfrom the sketcn. With this device a man can lay off 125 ringsin an hour, as compared with 7 rings an hour with dividers. A TUBE RATTLER MADE OF SLATS. An improved rattler for locomotive tubes, whereby the dis-agreeable dust and noise from this necessary part of everylocomotive shop equipment is avoided, was illustrated onpage 46 of our February number. Our attention has beencalled by Mr. Wagstaff, general boiler inspector of the NewYork Central, to a simple and effective construction, whichis illustrated in the accompanying engraving. This rattlerhas two cast-iro
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
