Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 157
Scale.—Jth inchrrl foot.Longitudinal Section and Elevation of Collectors. last-mentioned cases, and in all cases where there is no fire under the boiler bottom, they are, generallyspeaking, unnecessary, except for the purpose of preventing priming, which they most effectuallv dowhen that arises…
Mechanical engineering
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