. Electricity in diseases of the eye, ear, nose and throat . OIL & MERCURY WELL. Pig. 35. Mercury Turbine Interrupters. Pig. .36. tact with the walls of the case. The connectionsare such that the mercury stream is in series withthe main circuit, the current in which is broken eachtime the mercury jet is interrupted. See figures. 56 ELECTRO-THEEAPEUTIC APPAEATUS. WehneUs Electrolytic Interrupter.—This in-terrupter consists of an anode of platinum wire,insulated, witb the exception of the extreme end anda lead plate cathode; the two being immersed in six-teen per cent, of sulphuric acid in water
. Electricity in diseases of the eye, ear, nose and throat . OIL & MERCURY WELL. Pig. 35. Mercury Turbine Interrupters. Pig. .36. tact with the walls of the case. The connectionsare such that the mercury stream is in series withthe main circuit, the current in which is broken eachtime the mercury jet is interrupted. See figures. 56 ELECTRO-THEEAPEUTIC APPAEATUS. WehneUs Electrolytic Interrupter.—This in-terrupter consists of an anode of platinum wire,insulated, witb the exception of the extreme end anda lead plate cathode; the two being immersed in six-teen per cent, of sulphuric acid in water. When a current passes from a source of twentyto one hundred volts, the platinum glows intermit-tently. The current sets free hydrogen, whichgathers on the cathode in the cell and prevents a. Pig. 37.—Wehnelt Electrolytic Interrupter With Heavy Plati-num Anodes Connected in Parallel and Used for Instantaneousand Tele-radiography. further passage of the current. As the bubbles_ ofhydrogen escape into the surrounding electrolite,the current is again established. The circuit is thusmade and broken very rapidly. See Figure 37. TRANSFOKMEES. 57 A transformer is usually an induction coil, bywhich a primary current of high initial electro-mo-tive force is made to produce a secondary current oflow initial electro-motive force. This is a step-down transformer. Fig. 38.
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Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjecteye, bookyear1912
