Image from page 93 of "Journal of the Association of Engineering Societies" (1881)
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ee iron. 2. The making of carbon-free manganese. 3. The making of carbon-free cobalt. 4. The making of carbon-free nickel. 5. The making of carbon-free chromium. 6. The heating of an iron plate. An iron plate § inch thick was placed upon supports so thatits underside could be seen. The thermite mixture was placedupon it in the space between three bricks and fired in the usual 62 ASSOCIATION OF ENGINEERING SOCIETIES. way. Immediately the underside of the plate became red, thenwhite hot below where the reaction was taking place, while 2 inchesaway or less the plate was perfectly cold. 7. The melting of iron. Some of the thermite mixture was placed in the bottom of asmall Hessian crucible, and into this was pressed a rod of iron\ inch in diameter. The mixture was then fired. The rod melteddown like wax. See Marine Engineering, June, 1903, p. 329, for accounts ofapplication of thermite to ship repair. The American agent of the Thermite Company is Mr. C. B.Schultz, 149 Broadway, New York.
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AUGUST H. SCHIERHOLZ. Mechanical Engineer. Late Member Technical Society of the Pacific Coast. iJEX Editors reprinting articles from this journal are requested to credit not only theJournal, but also the Society before which such articles were read. Association OF Engineering Societies. Organized 1881. Vol. XXXI. SEPTEMBER, 1903. No. 3. This Association is not responsible for the subject-matter contributed by any Society or forthe statements or opinions of members of the Societies. THE HEYLAXD INDUCTION MOTOR. By A. S. Langsdorf. [Read before the Engineers Club of St. Louis, June 3, 1903.*] During the last few years the technical journals have containedfrequent accounts of the invention by Mr. Heyland of a form ofinduction motor which operates at unity power factor. The pub-lished articles, however, have been so scattered that it has appeareddesirable to the writer to present the subject to the members of thisClub in connected form.f The theory of operation of the Heylandmotor is, how
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