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 537
the movements are not slow and regular, the mercury is very apt to be thrown out; to prevent whichthe upper end of the vessel containing it is dished or enlarged. For the reasons above stated, theyhave never been extensively employed in the arts. If a common atmospheric pump be inverted, as shown…
Mechanical engineering · Mechanics · Engineering
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