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 467
the pulp enters from the reservoirs A A by the large stop-cocks r r, kept entirely open,so as to maintain sensibly in the drum B the same level as in the reservoirs A A. It is of httle im-portance, moreover, if this level be not rigorously equal, nor even if it varies notably in the reservoirsA A;…
Mechanical engineering · Mechanics · Engineering
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