. American engineer and railroad journal . taper drifts until itreaches li iu. in diameter without the edges fraying or show-ing signs of fracture. Samples or shearings from the plates must be tested in thepresence of the Railway Companys Locomotive Superin-tendent or his Inspector, on the premises of the maker, whenever desired. The barrel and fire-box casing plates to be thoroughly an-nealed after the rivet holes are punched. The smoke-box tube-plate, throat and back plates of the fire-box to be thoroughly annealed after they have been bothflanged and punched. Boiler Barrel.—The boiler barre
. American engineer and railroad journal . taper drifts until itreaches li iu. in diameter without the edges fraying or show-ing signs of fracture. Samples or shearings from the plates must be tested in thepresence of the Railway Companys Locomotive Superin-tendent or his Inspector, on the premises of the maker, whenever desired. The barrel and fire-box casing plates to be thoroughly an-nealed after the rivet holes are punched. The smoke-box tube-plate, throat and back plates of the fire-box to be thoroughly annealed after they have been bothflanged and punched. Boiler Barrel.—The boiler barrel is to be cylindrical andbutt-jointed, and is to be made in all respects as shown ondrawings ; it is to be 11 ft. long between thj smoke-box tube-plate and the throat-plate of the fire-box shell. 4 ft. 4 in. out-side diameter, and composed of |-in. plates. The longitudinaljoints are to have inner and outer covering strips double rivet-ed, the rivets being placed zigzag. The transverse joint to 6o THE AMERICAN ENGINEER [February, 1^ Vol. LXVir, No. 2.] AND RAILROAD JOURNAL. 6i
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
