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 101
esurfaces of contact, cylindri-cal in form, and therefore Fig-. 12. easily adapted to each other, render it little liable to lossof power by leakage, andmake special artifices of pack-ing unnecessary. It is obvi-ously as well adapted to wateror heated air as a motivepower as to steam. If re.versed…
Machinery · Scientific apparatus and instruments
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