Two electromagnets have coil windings with {TAIL ~ respective cores} ending adjacent {HEAD ~ the teeth} to provide magnetic fields between the core ends and the teeth 
Two electromagnets have coil windings with { TAIL ~ respective cores } ending adjacent { HEAD ~ the teeth } to provide magnetic fields between the core ends and the teeth
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH