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. 276. Geissler Air Pumi. from the vessel connected to C. This process is repeated until fullexhaustion is obtained. In practice the first exhaustion is often STANDARD EIvBCTRICAIv DICTIONARY. 439 effected by a mechanical pump. By closing the cock on the outlettube c but little air need ever…
Electricity
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