﻿E. T. Jones. 



Phil. Mag. Ser. 6, Vol. 29, PL I. 



Fig. 6. 



Primary current 1;5 amperes. 



Fig. 7. 





,; ■ '■'■> ■" > - •%#:?! 



Primary current 2 amperes. 



Fig. 8. 



Two successive breaks by motor interrupter. 



