File:The electro-therapeutic guide, or, A thousand questions asked and answered (1907) (14593231498).jpg

Identifier: electrotherapeut00benn (find matches)
Title: The electro-therapeutic guide, or, A thousand questions asked and answered
Year: 1907 (1900s)
Authors: Bennett, Homer Clark, 1865-1928
Subjects: Electrotherapeutics Electricity in medicine Ohm's law X-rays Electricity Electricity X-Rays Electromagnetic Phenomena Electric Stimulation Therapy
Publisher: Lima (Ohio) : Literary Dept. of the National College of Electro-Therapeutics
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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labor, and to call to yourminds the motto; Per aspera ad astra. Before going on to state the results of the therapeutic applications, Iwill give a brief description of the method of its gross construction, omit-ting only, for business reasons, the secret of the cores and method of wind-ing, which make it distinctive, and will surely prevent successful imita-tion, by unscrupulous substitutors, who might offer you something justas good. You know how it is with your prescriptions. The magnetone consists of a great length of insulated magnet wirewound on a heavy pasteboard drum, and surrounded on the outside by atubular battery of compound electro-magnets, the whole apparatus being THE KlvECTRO-THERAPEUTiC GUIDE 171 saturated with an insulating material, and then tightly bound togetherwith a layer of heavy express twine, longitudinally inside and out, andagain tightly wrapped outside of all with manila post-office twine, whichwrappings are also thoroughly saturated with insulation. CORES
Text Appearing After Image:
-SECTIONS- MAGNETONE The cut shows a BENNETT MAGNETONE, roughly in outline,both in longitudinal and cross section. In the above drawing the heavy black lines on the outside in the longsection at the left, represents two of the compound magnetic cores. These are also indicated in the cross section at the right, by the circleof small rings outside. In the left hand cut the several rows of dots inside the cores representthe cross sections of the different layers of magnet wire wound round insidethe cores. These are also indicated in the right hand cut by several circular linesin long section, wound inside the circle of the cores. As stated before, if the coil is energized with an alternated current, themagnetic field will assume the nature of a vortex. This is especially mark-ed in the magnetone. I get the best results when using the alternatedcommercial lighting current of 110 volts and 60 cycles, and the wires andcores are so evenly balanced that there is nearly complete mutual satura-

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