. Röntgen rays and electro-therapeutics : with chapters on radium and phototherapy . Fig. 75.—Simon interrupter. THE EONTGEI^ EAY APPAEATUS. 161 to tlie tliickness of the wire, so that the employmeut of three or more wiresof different gauges is ofteu expedient. Most advantage is gained with anE. M. F. of 50 to 120 volts. The voltage is regulated by means of a rheo-stat. For short runs a voltage of 40 to 100 volts is all that is required,but its employment must be for a brief interval only. To continue for ahalf hour or an hoiu would cause the generation of great heat in the acid,. Fig. 76.—Fri
. Röntgen rays and electro-therapeutics : with chapters on radium and phototherapy . Fig. 75.—Simon interrupter. THE EONTGEI^ EAY APPAEATUS. 161 to tlie tliickness of the wire, so that the employmeut of three or more wiresof different gauges is ofteu expedient. Most advantage is gained with anE. M. F. of 50 to 120 volts. The voltage is regulated by means of a rheo-stat. For short runs a voltage of 40 to 100 volts is all that is required,but its employment must be for a brief interval only. To continue for ahalf hour or an hoiu would cause the generation of great heat in the acid,. Fig. 76.—Friedlander electrolytic interrupter. The electrolyte is composed of a 10 per cent, solu-tion of magnesium sulphate, and the anode is made of German-silver wire. The operator can controlthe current for the work in hand by simply turning the thumb-screw. It operates by either the director alternating currents. with a stoppage of the mechanism. To avoid this drawback, many deviceshave been employed. Among the most important are the use of the sul-phates of magnesia and potash-alum in place of the acidulated solution,and also by making the container larger, and through it maintaining a flowof cold water. This type of interrupter is easily managed; its most pro-nounced disadvantage is its constant humming sound, while its very highE. M. F. has a tendency to disturb the vacuum of the Crookes 162 ELEOTRO-THEEAPEUTICte. There are very many varieties of the electrolytic interrupter,numerous modifications of the Wehnelt, bearing various names. Caldwell and Simon.—In 1899 M
Size: 1426px × 1752px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectradiolo, bookyear1910
