Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 467
the pulp enters from the reservoirs A A by the large stop-cocks rr, kept entirely open,so as to maintain sensibly in the drum B the same level as in the reservoirs A A. It is of little im-portance, moreover, if this level be not rigorously equal, nor even if it varies notably in the reservoirsA A ;…
Mechanical engineering
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