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The Locomotive (1867)
Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 139
© Fig. 5. If we take such a boiler-head as that described above and subject it to hydrostaticpressure we shall find that a very low pressure, say 10 to 20 pounds per square inch, is suffi-cient to spring or bulge it much more than is allowable in practice. The only inferenceto be drawn from this…Locomotives · Steam-boiler explosions
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
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