. Marine Engineer . made by the Hay . Boiler and Engineering Com-pany, Limited, of Birkenhead. Fig. 1 is an outsideelevation, from which the position of the variousfittings can be seen. Fig. 2 is a transverse verticalsection. Fig. 3 is a plan of the top of the 4 is a part sectional view of the headers, thearrangement of the communicating holes and coversbeing shown in detail. The boiler shown consists ofnine layers of tubes, of which five are steam tubes A,. two are drying and superheating tubes B, and two arefeed-water heating tubes C. These tubes are sup-ported at their ends in a
. Marine Engineer . made by the Hay . Boiler and Engineering Com-pany, Limited, of Birkenhead. Fig. 1 is an outsideelevation, from which the position of the variousfittings can be seen. Fig. 2 is a transverse verticalsection. Fig. 3 is a plan of the top of the 4 is a part sectional view of the headers, thearrangement of the communicating holes and coversbeing shown in detail. The boiler shown consists ofnine layers of tubes, of which five are steam tubes A,. two are drying and superheating tubes B, and two arefeed-water heating tubes C. These tubes are sup-ported at their ends in a top header S and bottomheader T, and communication between the tubes Awith one another is effected by holes O drilled fromone tube hole to another. The tube holes are closedby covers R, convex washers Q, and studs and nutsP, each stud and washer bearing on three covers. The feed water enters the boiler through the feedcheck valve D, passes up the two feed heating pipesC by the external pipes H into the steam tubes steam generated passes from the steam tubesA into the superheating tubes B, and thence to thesteam-collecting tube K. The usual fittings, such assafety valves M, water gauge F, water column andtest cocks G, cleaning doors I, pressure gauge J,stop valve L and steam jet N, are arranged asindicated. The boiler, as illustrated in Fig. 5, has 245 squarefeet of heating surface, and eight square feet of gratearea, a height of 6 ft. 6 in., width 3 ft. 8
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherlondon, bookyear190
