Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 137
BOILERS. two heads, C C and D D, that are convex upwards. E E is the steam space, and F the water line,G G is that part of the boiler which is below the lower tube-head C C, and H H the bottom of theboiler. This bottom is convex outwards, and may be either spherical or conical; and as the direct…
Mechanical engineering · Mechanics · Engineering
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