. American engineer and railroad journal . p-posite thereto, so that there may be no impediment in his waywhen firing. The engine is fitted with side water tanks sloping towardsthe front ends to facilitate the vitw ahead, .^bove the tank-and extending across the boiler are the coal bunkers. A sup-plementary well tank is provided on each side, below the foot-plate, in connection with the side water tanks. The main prin-ciple on w-hich the engine is constructed does not vary from thatof the usual Fairlie type, flexibility of movement ueing ob-tained by the use of ball-and-socket joints and simil
. American engineer and railroad journal . p-posite thereto, so that there may be no impediment in his waywhen firing. The engine is fitted with side water tanks sloping towardsthe front ends to facilitate the vitw ahead, .^bove the tank-and extending across the boiler are the coal bunkers. A sup-plementary well tank is provided on each side, below the foot-plate, in connection with the side water tanks. The main prin-ciple on w-hich the engine is constructed does not vary from thatof the usual Fairlie type, flexibility of movement ueing ob-tained by the use of ball-and-socket joints and similar the springs in each truck are compensated. The .quipmentincludes the Westinghouse E. T. brake apparatus with signal-ing device, while a hand brake acting on all wheels is pro-vided. Two throttle luindles are provided, these being mounted oneabove the other horizontally and working in a toothed quadrant,the arrangement being such that either engine caa be itsed inde-pendently of the other. The engines are so arranged that they. ONE OF THE TRUCKS COMPLETE. can be fitted with oil fuel burning apparatus at a later period,but as sent out from the Vulcan Foundry they are built forcoal consumption, with rocking grates. The following are some of the principal dimensions: Cylinders (4), diameter 19 !n. Stroke of pistons 25 in. Wheelbase (each truck) ■ ft. 3 in. Total wheelbase 3j ft. 6 in. Total length over all S6 ft. l.)i in. Boilers, length of barrels 13 ft. Boilers, diameter of barrels 5 ft. outside. Boilers, height of centre above rail 7 ft. 10 in. Heating surface, total sq. ft. Crate area sq. ft. Working pressure - 185 lbs. Weight in full working order 138 tons At go per cent, of the boiler pressure the engine develops atractive force of 62,610 lbs. and at 75 per cent. 52,176 lbs. Theratio of tractive force at go per cent, to adhesion is andat 75 per cent. The tanks have a carrying capacity of 4,500gallons and a fuel space of 7 tons is provided.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
