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 463
many 44 ELECTRICITY FOR ENGINEERS turns before bringing the end out, and in so doingobtain the well known drum armature, or, by a slightlydifferent method of winding, the gramme ring arma-ture, Fig. 18. Here we have many wires cutting thelines of force at once and our electromotive force withthe… … FIGURE 18. more wire or increasing the speed of our armature wecan increase the magnetism, or number of lines of force,by sending more current through the fields, that isincreasing the ampere turns. If we wish to reverse the current flow we can do soby revolving the armature in the opposite…
