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 792
ers essentially fromall other glass gauges in that the water in the glass tubehas no direct communication with that in the boiler, andthat a second gauge is attached at any conven-ient distance from the first, so that safety maybe insured by having two observers. The/ gauge consists of a pipe…
Mechanical engineering · Mechanics · Engineering
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