The overall setup of FIG 4 provides multiple axes of {HEAD ~ rotation} for {TAIL ~ the means} 60 to hold the clamp in the chosen position 
for
The overall setup of FIG 4 provides multiple axes of { HEAD ~ rotation } for { TAIL ~ the means } 60 to hold the clamp in the chosen position
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