. Electrical world. pages, 66illustrations. Price, 4 marks. .\lterxatixc Currents. Their Generation, Distribution and Utili-zation. By George T. Hanchett. New York: John Wiley &Sons. 175 pages, illustrated. Price, $ Electrical Engineering and Tests on Direct-Current Machinery. By George F. Sever. New York: D. VanNostrand Company. 64 pages, 22 illustrations. Price, $ Theoretische Grundlagen der Starkstrom - Technik. ByCharles Proteus Steinmetz. Braunschweig: Friedrich Vieweg & Son. 331 pages, illustrated. Price, g marks. ~o6 ELECTRICAL WORLD and ENGINEER. Vol. XLIII,
. Electrical world. pages, 66illustrations. Price, 4 marks. .\lterxatixc Currents. Their Generation, Distribution and Utili-zation. By George T. Hanchett. New York: John Wiley &Sons. 175 pages, illustrated. Price, $ Electrical Engineering and Tests on Direct-Current Machinery. By George F. Sever. New York: D. VanNostrand Company. 64 pages, 22 illustrations. Price, $ Theoretische Grundlagen der Starkstrom - Technik. ByCharles Proteus Steinmetz. Braunschweig: Friedrich Vieweg & Son. 331 pages, illustrated. Price, g marks. ~o6 ELECTRICAL WORLD and ENGINEER. Vol. XLIII, No. 15. Recovery of Cylinder Oil. By Thom.^s Griswold, Jr. A successful, and so far as the writer knows, an original methodfor the recovery of cylinder oil is practised at the Midland (Mich.)plant of the Dow Chemical Company. A brief description of themeans employed may interest central station men and others engagedin economical power production. The recovery apparatus which we call a skimmer is applied to. is divided into three parts by vertical cylindrically-formed parts 0, n, m, p, q, r and m, n, t, s, g, p are water compartmentsconnected through the holes at d. The latter compartment is alsopartially divided by a partition, /, e, h, g, designed to cut off thewater about the discharge, x, from disturbing effects due to circu-lation. The compartment, o, n, t, s, g, r, is for the skimmed oil,which, after it has accumulated to a certain extent on the surface ofthe water in the other two compartments, flows over the weirs atv^ and v„ into the screen or strainer, w. The height of the overflow,y, is regulated to permit the oil to accumulate to a depth of about 8in. before it rises to the weirs. It is kept fluid by the hot water under-neath, and the larger part of the water separates out before it beginsto skim. The oil compartment being bounded on two sides byhot water is also kept warm and the water still further separatesthere, where it may be drawn off at the
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
