The body member 32 modifies the extending magnetic lines of {HEAD ~ force} in {TAIL ~ a manner} similar to that illustrated by the prior art of FIG 1b 
in
The body member 32 modifies the extending magnetic lines of { HEAD ~ force } in { TAIL ~ a manner } similar to that illustrated by the prior art of FIG 1b
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH