An apparatus is set forth including a first shield with a first J shaped end mounted within {HEAD ~ a second J shaped end} of a second shield to permit {TAIL ~ relative pivotment} of the first shield relative to the second shield 
to permit
An apparatus is set forth including a first shield with a first J shaped end mounted within { HEAD ~ a second J shaped end } of a second shield to permit { TAIL ~ relative pivotment } of the first shield relative to the second shield
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH