Wisconsin medical recorder . haking to dislodge it. This interrupter was taken up bythe Heintz people who overcame thedifficulty by combining the slate andcopper wheel with this interrupter; inother words, interrupting the currentbefore it went into the interrupterproper. This has worked out as agreat success as .the impulsive waivegiven the current by the slate wheelpropels the gas through the opening,and prevents any inverse current fromgoing through the tube. It has sincebeen found not necessary to use the slatewheel, as the trouble is avoided bydrilling the hole through the porcelainon an
Wisconsin medical recorder . haking to dislodge it. This interrupter was taken up bythe Heintz people who overcame thedifficulty by combining the slate andcopper wheel with this interrupter; inother words, interrupting the currentbefore it went into the interrupterproper. This has worked out as agreat success as .the impulsive waivegiven the current by the slate wheelpropels the gas through the opening,and prevents any inverse current fromgoing through the tube. It has sincebeen found not necessary to use the slatewheel, as the trouble is avoided bydrilling the hole through the porcelainon an angle and not directly fact was accidently discovered. My friend, Dr. Lester Custer, ofDayton, Ohio, has solved the problemof the Lodge type of interrupters byusing a quarter of a barrel, which islined with lead, for one electrode, andfilling that with bottles which he con-structed of porcelain, walls of differentthickness through which he drilledholes upon an angle and of different 02 WISCONSIN MEDICAL RECORDER. FIGURE l Prof. Lodges Type Electrolytic Interrupter, WISCONSIN MEDICAL RECORDER I03 sizes, and leading a wire from the elec-trode in the bottle and up to theswitchboard, he was able to choose anybottle as he desired, each bottle givinga different interruption usually hestarted with a quick, fine interruption,and by swinging the switch lever overuntil it was allowed to remain uponthe bottle which gave the right periodof interruption for the work in construction of this kind is ideal, andmay be located at any distance fromthe operator. The great amount offluid in the tub, the absence of an un-sightly object in the office, as it may they may be constructed to handlejust as heavy currents as may be desir-ed, and have in practice worked from1-2 to 60 amperes of current. Soon after the invention of these in-terrupters and skiagraphy had becomea fine art, operators found a peculiarphenomenon would develop in certaincases; when they attempted to make askiag
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