By using a mechanism similar to that of FIG 2, a relatively neat arrangement of eight largely vertical flexible conduits can be used to pass through the critical area at {HEAD ~ the level} of {TAIL ~ the main pivot joint} 
of
By using a mechanism similar to that of FIG 2 , a relatively neat arrangement of eight largely vertical flexible conduits can be used to pass through the critical area at { HEAD ~ the level } of { TAIL ~ the main pivot joint }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL