A dictionary of electrical words, terms and phrases (1896)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W.J. Johnston company · leaf 439
ns being allowed toescape through anopening governed bya stopcock. The ves-sel to be exhausted isconnected with thebulb, and by meansof a two-way exhaus-tion COCk, COmmuni- Fig. 454. Geisslers Mer-cation can be made curial Air Pump. with the bulb, when it contains a Torricellianvacuum, and shut off… … Pump, Air, Mechanical -A mechan- ical device for exhausting or removing the airfrom any vessel. An excellent form of air pump is shown in Fig.455, which is a drawing of Bianchis pump. Three valves, all opening upwards, are placed Pum.] 428 [Pjr. at the top and bottom of the cylinder, and in…
Electricity · Electrical engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
