. American engineer . nder the boilerbarrel, immediately in front of the firebox. Hand-shaking gearis also provided. On seven of the locomotives the grate barshave fine fingers and narrow openings and are arranged forburning Gallup coal, which resembles lignite. The fireboxes ofthe coal burners are provided with two 3-in. arch tubes. Theoil-burning locomotives are fitted with the oil-burning equip-ment standard on the Santa Fe, and including the Booth burner. The tender is designed in accordance with the Santa Festandard practice. It has arch bar trucks with cast steel bolstersand steel tired
. American engineer . nder the boilerbarrel, immediately in front of the firebox. Hand-shaking gearis also provided. On seven of the locomotives the grate barshave fine fingers and narrow openings and are arranged forburning Gallup coal, which resembles lignite. The fireboxes ofthe coal burners are provided with two 3-in. arch tubes. Theoil-burning locomotives are fitted with the oil-burning equip-ment standard on the Santa Fe, and including the Booth burner. The tender is designed in accordance with the Santa Festandard practice. It has arch bar trucks with cast steel bolstersand steel tired wheels, and the frame is composed of 12-in. chan-nels weighing 40 lbs. per foot. The end sills are of cast steeland are standard for all tenders on the system. The rear endsill is provided with a drawbar carrier of cast steel, which iscast with lugs which interlock with similar lugs on the endsill. When the carrier is in place bolts are applied from the i^ f I —th- 11 T {1 111 -I84\ >i^S->1 :■ „ L r-i r^Jl. Front End Arrangement of Locomotives Fitted with Schmidt Superheaters. lows a circuitous course among tlie tubes. The steam leaves thesuperheater through right and left hand pipes which run directto the steam chests and have their joints outside the superheater section of the boiler is butt-jointed to themain boiler section, the joint being secured by an external cover-ing strip taking four circumferential rows of rivets. The super-heater tubes are arranged in a manner which has proved mostsatisfactory, as far as superheating the steam and drafting theboiler is concerned. There are 350 2}4 in. and 67 3 in. tubes,and one large tube 6 in. in diameter. The latter is placed just top, extending through the bottom wall of the sill and throughthe carrier. These bolts are for the purpose of preventing thecarrier from sliding ofif the interlocking lugs and are subject tono stress from carrying the drawbar, as the interlocking lugs re-ceive all the weight. There
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
