Spon, Ernest, Haldane, Robert, Lock, Charles G. Warnford (Charles George Warnford), 1853-1909 · London ; New York : E. & F.N. Spon · leaf 155
field, and by the employ- 1831, showed that by rotating a similar disk mechanically between the poles of ment of a multiple-bar collector with complicated cross connections, has suc- a magnet, continuous currents were ob- tained. These he drew off by collecting ceeded in converting this type of… … Another method of obtaining a con- namo is shown in Fig. 83 in diagram. The armature is a hollow cylinder s. tinuous cutting of the lines of force, is
Workshop recipes · Technology · Industrial arts
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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