. American engineer and railroad journal . 84 215 55 5703. 62. 275. 73. 690. 1906. p. 371 B & O. 0-6*0Amer. 70, I 20 & 32 20 & 31 32 84 235 565600. G. N 2-6-6-2Bald 288. 250,1 30 72 210 813. 1907p. 213 It is of the radial stay type with conical connection sheet, theinside diameter of the first ring being 82 in. and that of thelargest course being 96 in. The heaviest ring of the shell is1 ?/6 in. thick. A steam pressure of 215 lbs. is carried. Thetubes, of which there are 404, are 21 ft. long and are 2% inches indiamete
. American engineer and railroad journal . 84 215 55 5703. 62. 275. 73. 690. 1906. p. 371 B & O. 0-6*0Amer. 70, I 20 & 32 20 & 31 32 84 235 565600. G. N 2-6-6-2Bald 288. 250,1 30 72 210 813. 1907p. 213 It is of the radial stay type with conical connection sheet, theinside diameter of the first ring being 82 in. and that of thelargest course being 96 in. The heaviest ring of the shell is1 ?/6 in. thick. A steam pressure of 215 lbs. is carried. Thetubes, of which there are 404, are 21 ft. long and are 2% inches indiameter. This length of tube, taken in connection with the 4 chamber, places the front tube sheet 25 ft. from thefirebox, a figure which has never before been equaled inlocomotive service. The combustion chamber itself is radiallystayed from the shell of the boiler, and is provided with amplewaler space on all sides. The mud ring is 5 in. in width at allpoints, and the crown sheet has a slope of 5 in. from its connec-. surface in comparison with its size and grate area. * For description uf tliis system see American Engineer andJournal, April, 1906, p. ISO. The indica- Railroad BOILER OF ERIE MALLET COMPOUND LOCOMOTIVE. tion to the combustion chamber to the door sheet. The domeis placed about central in the length of the boiler, since the loco-motive is to operate in either direction and on heavy grades. A novel design of throttle valve has been fitted to these loco-motives, which in addition to taking steam at the top only, alsoacts as a steam separator. This construction is shown in oneof the illustrations, and the arrangement is such that the enter-ing steam strikes against the curved surface of the upper bellupon which the entrained water will be deposited, and follow-ing the surface of this casting will pass down through the centerof the valve to an outlet below. The top of the bell casting doesnot take a bearing, and hence it does not in any way act as a 340 AMERI
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
