. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. of the latter, thus exposing the insulating cylinder in two places diametrically opposite each otherand alternating with the metal segments. The two segments S^ and S^ Fig. 1035, corresponding tosections 3 and 7 of wire, hold a position on the cylinder, in advance of those of the preceding sectionsS-^ and S^, to the same angular extent that the sections 3 and 7 in question are in advance of sections. 2 and 6. In this arrangement the number of segments is equal to the number of sections, eachsegment being c
. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. of the latter, thus exposing the insulating cylinder in two places diametrically opposite each otherand alternating with the metal segments. The two segments S^ and S^ Fig. 1035, corresponding tosections 3 and 7 of wire, hold a position on the cylinder, in advance of those of the preceding sectionsS-^ and S^, to the same angular extent that the sections 3 and 7 in question are in advance of sections. 2 and 6. In this arrangement the number of segments is equal to the number of sections, eachsegment being connected with but one section. The first and last ends of each section can, however,be attached to two diametrically opposite segments, the commutator cylinder in that case being-constructed with double the number of segments as in the former case, thus making the number of DYNAMO-ELECTEIC AND MAGNETO-ELECTEIO MACHINES, 477 segments double the number of sections. Two metallic plates or brushes, insulated from each other,press lightly upon the cylinder, at opposite points, so selected that while each section of wire on thearmature is passing from one neutral point to the other, the corresponding segments on the cylinderwill be in contact with them. These plates or brushes collect the currents of electricity generatedby the revolution of the armature, one being positive and the other negative. When the section ofwire is passing the neutral points on the armature, the plates are in
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectenginee, bookyear1879
