Steam boiler explosions, in theory and in pactice; . Fig. 7.—Overheating the Sheet. a horizontal surface, figure 8, a pocket is produced. Theillustration represents a sheet removed from the shell. Fig. 8.—A u Pocket. of an externally fired boiler, thus injured. Finally, when the defect is not observed and theinjured sheet removed, the metal may finally give wayentirely, permitting the steam and water to issue, as inthe last illustration of this series, in which the last step

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectsteambo, bookyear1887