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 195
larsurfaces just at thecircumference of theadmission openings.The contact here mustbe as close as possiblewithout serious Mo-tional resistance. Therevolving drum, asobserved above, is notcylindrical. As thewater moves outward-ly from the centrali ^; opening with a ve- , locity always increas-… … GWYNNE & CO.s CENTRIFUGAL PUMP. 179 were no acceleration of movement, the superficial area of each con-centric cylindrical section would have to be the same, which couldonly be made true by reducing its length in proportion to the increase ofthe radius j and in the second place, a proper…
Machinery · Scientific apparatus and instruments
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