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 791
The accompanying engraving represents Hoyts Water Gauge, partlyin section. It is a simple mechanical invention for telling at alltimes, the position of the water in steam boilers. The dotted cir-cles show the connection with the boiler; the cock at the bottom isa blow-out cock for the prevention of…
Mechanical engineering · Mechanics · Engineering
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