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 589
figure 95 170 ELECTRICITY FOR ENGINEERS dirt as may accumulate therein to fall out rather thanin the clash pot. The three cuts show the manner of suspending thespools and their accessibility, it being possible toremove any spool by simply taking out the two screws
