. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. thering is built up of four subsections, abed, Fig. 1064, and all these subsections of any one sectionare wound in the same direction. This subdivision admits of the connecting-up of the subsectionsinto 32, 16, 8 or 4 circuits. All the subsections marked a are influenced by the rotating magnetsin precisely similar manner, because the influence of a north pole upon a coil wound in a right-handed direction is the same as that of a south pole upon a coil wound in a left-handed , the current
. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. thering is built up of four subsections, abed, Fig. 1064, and all these subsections of any one sectionare wound in the same direction. This subdivision admits of the connecting-up of the subsectionsinto 32, 16, 8 or 4 circuits. All the subsections marked a are influenced by the rotating magnetsin precisely similar manner, because the influence of a north pole upon a coil wound in a right-handed direction is the same as that of a south pole upon a coil wound in a left-handed , the currents in all the 6 coils are of one direction, whatever the position of the rotatingmagnets. Thus, all the coils similarly marked can be connected into one circuit, and terminalscrews are provided for the required arrangement. The current from the small machine is led tothe rotating magnets through the flat brushes of silvered copper wire attached to the framework ofthe machin°e, and in rubbing contact with two insulated copper cylinders, one connected to eachend of the magnet DYNAMO-ELECTRIC AND MAGNETO-ELECTEIC MACHINES. 489 A largest sized machine supplies 16 Jabloclikoff candles, each of 1000 candle-power, at a speedof 600 revolutions a minute, absorbing 16 horse-power. On the mechanical efficiency of dynamo-electro machines, Paget Higgs states, there can benothino- done in the inter-comparison of any natural force until accurate measurements have been
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectenginee, bookyear1879
