Laying out for boiler makers and sheet metal workers; a practical treatise on the layout of boilers, stacks, tanks, pipes, elbows, and miscellaneous sheet metal work . ance piece between the front plate and the lining, andare made in three pieces for convenience in making repairs,the center piece being the width of the fire-door opening;this is 4>2 inches deep. The lining is of wrought steel plate,bolted through the frame and front, the heads of bolts being The front bearer is of cast iron and shaped as shown; it issecured to the furnace front and frame, and is beveled toreceive the grate b
Laying out for boiler makers and sheet metal workers; a practical treatise on the layout of boilers, stacks, tanks, pipes, elbows, and miscellaneous sheet metal work . ance piece between the front plate and the lining, andare made in three pieces for convenience in making repairs,the center piece being the width of the fire-door opening;this is 4>2 inches deep. The lining is of wrought steel plate,bolted through the frame and front, the heads of bolts being The front bearer is of cast iron and shaped as shown; it issecured to the furnace front and frame, and is beveled toreceive the grate bars. The grate bars are in two lengths, supported by two bearerbars in center: these bearer bars are supported by two half-round bars, made to fit in the corrugations, so that they willnot extend above them and interfere with the ash pan. Theupper ends are bent in and tied together by wrought steelplates: these plates are notched to receive the bearer bars,which are 3 inches by M inch, and let into the side plates soas to support the ends of grate bars at the center of thefurnace. The back bearer is formed by one casting, supported by /^^ FiirnaPe Furnace Front. For 5^ Rivet FIG. 14. half-round saddles in the same manner as the middle bearers,except that the supports are secured to the bearer direct,flanges being cast on bearer for that purpose. This casting is shaped so that a shelf is provided for thebricks to rest on in building the bridge wall. The bridge wall is built up of brick and firecla.\-, the topbeing crowned, allowing a clear opening over it of about 16
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Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidl, booksubjectsteamboilers
