. Journal. , APPARATUS, AND MACHINERY. Poena, Dewars Method of Producing HighBlvthswooil ami II. S. Allen. Phil. Mag., 1905 iks method for producing high vacua, depending on . absorption of gases bj ehareoal at low temperatures J., 1905, 793), can be applied to the exhaustion receivers, it being only necessary to increase the number) of the charcoal receptacles. Only moderate amounts of liquid air are necessary for the The volume of .mi absorbed by charcoal (at the Iwnperaturo of liquid air) is, -to a first approximation, mien I of the quantity originally present in the tu
. Journal. , APPARATUS, AND MACHINERY. Poena, Dewars Method of Producing HighBlvthswooil ami II. S. Allen. Phil. Mag., 1905 iks method for producing high vacua, depending on . absorption of gases bj ehareoal at low temperatures J., 1905, 793), can be applied to the exhaustion receivers, it being only necessary to increase the number) of the charcoal receptacles. Only moderate amounts of liquid air are necessary for the The volume of .mi absorbed by charcoal (at the Iwnperaturo of liquid air) is, -to a first approximation, mien I of the quantity originally present in the tus. The rate of absorption was found to be practically independent of the pressure, and to stand in 1 constant ratio to the amount of air which the charcoal is ipable of absorbing.—T. F. B. English Liquids; Apparatus for Separating and Con- g the Vapour* of . H. Heymann, Bradford; and II. Hey, .1. Smith, H. L. .Mitchell, and W. H. Askham,Dewsburv. Eng. Pat. :!... Aug. 10. Fig. 1.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
