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 510
t halves of the.three coils are rep-resented by 1, 2 and 3, and the last halves by i, 2and 3, ELECTRICITY FOR ENGINEERS 9; A narrow piece of tin with sharply pointed ends isbent up over the sides of the middle band at the cen-ter of the red mark so that the points are opposite eachother. When the… … FIGURE 51. mark (No. 3 in Fig. 51) is just in line with the edge ofthe left field. The red lead will then be in positionshown in Fig 51, and the armature is in proper posi-tion to set the commutator. In the case of the right-hand drum armature heleading wire of the first coil should be found. This…
