Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1129
To Circuit or ^nnrne<«r ^^^?^ … To Clu-tch at, F for- Clockwise. To Clutch at E for Counter Clockwise, To Clutch at E for Clockwise.To Clutch at F for Count^.er Clockwi«iChanged 6 June98. Fig. 475 The current for the magnetic clutches is regulated bythe controller. The controller consists principally of two magnets whichare…