Twentieth century hand-book for steam engineers and electricians, with questions and answers .. (1905)
Swingle, C. F. [from old catalog], Horstmann, Henry Charles, 1858- [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] · Chicago, F. J. Drake & co. · leaf 503
circuit. 84 ELECTRICITY FOR ENGINEERS The current for the magnetic clutches is regulated bythe controller. The controller consists principally of two magnetswhich are energized by the main current and act whenthe current is too high or too low by sending a smallcurrent to one of the clutches. A… … Changed S Junes FIGURE 47. of its regulating action. It is generally advantageousto make the yoke which carries the brushes on themachine and the arm moving the rheostat, rathertight. As the magnetic clutches act with considerableforce, it is not necessary to adjust these moving partsso loosely…
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