{HEAD ~ A centrifugal governor} 2, wherein {TAIL ~ said spark generating means} comprises a magnetic inductor for supplying magnetic field 
wherein
{ HEAD ~ A centrifugal governor } 2 , wherein { TAIL ~ said spark generating means } comprises a magnetic inductor for supplying magnetic field
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH