. Radiography, x-ray therapeutics and radium therapy . IiG. 14.—Dreailiiougbt inter-rupter. (Watson.). ,^^2k ^S>t Fig. 15.—Dreadnought interrupter showing detail. A, Container. B, Jet. C, Contact , Screw. F, Shaft bearing. H, Oil cups. K, Motor brushes. open for a few moments in order to expel the air. This tap is thenclosed and the other connected to the gas supply left open, and advantagetaken of the pressure from the mains. If there is no handy gas supply agas bag may be used or ether vapour. The latter may be employed byvaporising a small quantity of methylated ether placed on th
. Radiography, x-ray therapeutics and radium therapy . IiG. 14.—Dreailiiougbt inter-rupter. (Watson.). ,^^2k ^S>t Fig. 15.—Dreadnought interrupter showing detail. A, Container. B, Jet. C, Contact , Screw. F, Shaft bearing. H, Oil cups. K, Motor brushes. open for a few moments in order to expel the air. This tap is thenclosed and the other connected to the gas supply left open, and advantagetaken of the pressure from the mains. If there is no handy gas supply agas bag may be used or ether vapour. The latter may be employed byvaporising a small quantity of methylated ether placed on the top of themercury and starting the interrupter with a small current before closingthe taps. 20 EADIOGEAPHY
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