Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · 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
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
