ence IMPROVED JOINT FOR BOILER FLUES, square, was erected and set on fire. After the flames had com- as is the marine engine to the comprehensive genius of the pletely enveloped the structure, the operator, with an extin- The internal flues of boilers are sustained only by the ends, engineer.… … gether as accurately as they are adapted to each other, and exerts an enormous strain upon the boiler heads to which they In No. 6 of the same volume (Oct, 25, 1851), we published may be, as they are, warranted with entire certainty. Noth- are attached, and it is well understood by engineers that…
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