. American engineer and railroad journal . ustration. It is in. wide and in. high. The backfirebox sheet is dished at the door to permit the use of a doorring only in. wide. The method of setting the tubes is also shown in the illustra-tion. The hole in the back sheet is taper and the tube is swageddown to enter and is rolled and beaded. The holes in the frontsheet are straight, in. in diameter and the tube is simplyexpanded and rolled. The smoke-box is provided with a high exhaust pipe fitted witha variable exhaust nozzle. This device_ consists of a hollowcone fitted in t
. American engineer and railroad journal . ustration. It is in. wide and in. high. The backfirebox sheet is dished at the door to permit the use of a doorring only in. wide. The method of setting the tubes is also shown in the illustra-tion. The hole in the back sheet is taper and the tube is swageddown to enter and is rolled and beaded. The holes in the frontsheet are straight, in. in diameter and the tube is simplyexpanded and rolled. The smoke-box is provided with a high exhaust pipe fitted witha variable exhaust nozzle. This device_ consists of a hollowcone fitted in the top of the exhaust pipe, the largest outsidediameter of which is equal to the inside diameter of the tip ofthe nozzle. This cone is connected to the horizontal arm of ashaft which extends out of the side of the smoke-box, and isoperated from the cab by means of a screw and hand wheel. Bylowering or raising the cone, the amount of the exhaust open-ing is increased or diminished. The blower nozzle, of bronze, is a hollow ring surrounding. BOILER FUR THE DF. GLEHN COMPOUND PACIFIC TYPE LOCOMOTIVE. their steam chests and receiver are in one casting. They setbetween the frames which are widened at this point to permitthe use of . in. diameter cylinders. The low-pressure valvesare of bronze and of the plain unbalanced slide type. Theyhave inclined seats and extend slightly over the top of theframes. The passages throughout are very large and give freemovement to the steam. In order to provide clearance for thefront truck, all the cylinders are slightly inclined. The boiler is also shown in detail in one of the is of the straight top type with Belpaire firebox, thefirebox being copper. All the stays in the water legs are ofmanganese bronze, while the crown and boiler stays are of FallsHollow stay bolt iron. The barrel is made up of sheets in. in thickness, there being three rings. The front tubesheet, which is nearly 1 in. thick, is flanged and set int
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
