. Archives of physical medicine and rehabilitation . well as the overheating ofthe points of the gap. The Liebel-Flarsheim Company has reduced theelectrical resistance of the spark gap asmuch as possible and provided an ex-traordinarily large radiating Liebel, President of that Com-pany, says this apparatus can beoperated continuously within safe tem-perature limits twenty-four hours a dayif necessary without any injury to theparts of the machine. While this particular piece of ap-paratus is designed for electro-coagula-tion purposes suitable for the require-ments of the specialist


. Archives of physical medicine and rehabilitation . well as the overheating ofthe points of the gap. The Liebel-Flarsheim Company has reduced theelectrical resistance of the spark gap asmuch as possible and provided an ex-traordinarily large radiating Liebel, President of that Com-pany, says this apparatus can beoperated continuously within safe tem-perature limits twenty-four hours a dayif necessary without any injury to theparts of the machine. While this particular piece of ap-paratus is designed for electro-coagula-tion purposes suitable for the require-ments of the specialist in Radiologyand provides Oudin current and auto-condensation, it is so constructed thata powerful diathermy current can beproduced by it. \RW EQUIPMENT from one room to another and to differ-ent parts of a ward in a hospital. Thecabinet is constructed of oak, dark fin-ish; the sv/itchboard of marble em-bedded in felt. The spark gap is threestage tungsten point, quenched gap. Modalities — electro-coagulation ofvery high frequency with sufficient. This is an added advantage in thatthe value of diathermy in various con-ditions, such as bone and joint path-ology, is becoming quite generallyrecognized and used. The Model P Dynelectron is alsofurnished mounted on a cabinet sothat it can be readily and easily moved power for all cases. Oudin high fre-quency current for vacuum or non-vacuum electrodes. Diathermy up to4000 ma.; auto-condensation up to1 000 ma. Meters are interchangeable,one reading up to 1000 ma. and theother up to 4000 ma. A full line of accessories is alsoavailable. The New Wappler Junior HorizontalFluoroscope pURTHER attempts to eliminate allpossible danger in the use of x-rayapparatus are responsible for the de-velopment of a new type horizontalfluoroscope by the Wappler Electric Company. Because of its outstandingfeatures of simplicity in construction,efficiency and safety of operation, thisapparatus is attracting considerable at-tention. It must be remembered,


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Keywords: ., bookcentury1900, bookdecade1920, bookidn08archiveso, bookyear1920