Machinery and processes of the industrial arts, and apparatus of the exact sciences (1869)
Barnard, Frederick A. P. (Frederick Augustus Porter), 1809-1889 · Washington, Govt. print. off. · leaf 248
face of water in another vessel. Butas excess of water cannot be present except during the filling, it answersthe purpose to leave the pipe open until the filling is complete, and thento close it securely. As the water wastes by evaporation, the float de-scends and immerses an increasing portion of… … 232 PARIS UNIVERSAL EXPOSITION. III.—BOILEE FEEDEES.riedels feeder. Among the variety of contrivances for maintaining the water of steam-boilers at a uniform level which the Exposition embraced, there weretwo which belong to the class of meters as well as feeders, and whichappear to be sufficiently…
Machinery · Scientific apparatus and instruments
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