The standard electrical dictionary : a popular encyclopaedia of words and terms used in the practice of electrical engineering (1898)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · London : Crosby Lockwood and Son · leaf 444
Fig. 277. Sprengel Air Pump. Pump, Sprengel. A form of mercurial air pump. A simpleform is shown in the cut. Mercury is caused to flow from the 440 STANDARD BI^BCTRICAL DICTIONARY. funnel A^ through c d to Sl vessel B. A side connection x leadsto the vessel R to be exhausted. As the mercury passes…
Electricity
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.
