[Bubier], Edward Trevert, 1858- [from old catalog] · Lynn, Mass., Bubier pub. co. · leaf 205
exhausted of air; Fig. 2 shows the GeisslerPump used for this purpose. B I and B 2 may becalled the mercurial bulbs or reservoirs which areconnected by a U shaped bulb, by means of whichthe mercury is made to flow from one bulb to theother, thereby alternately emptying and filling RECENT… … the pumps ;._/// are the points where the bulbsare sealed when the lamps are detached from thevacuum pump. In this pump the mercury isforced by the pressure of air from the bulb B i to 204 ELECTRICITY AND ITS the bulb B 2, driving out the air at the point p.The stop cock / is then closed and the…
Electricity
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