Within {HEAD ~ bore} 3 is provided a pin 5 which is displaceable in the longitudinal direction and can be accessed in the lower portion of neck 2, which portion is not covered by joint ball 4, through an opening 6 having an axis transverse to {TAIL ~ the bore axis} 
Within { HEAD ~ bore } 3 is provided a pin 5 which is displaceable in the longitudinal direction and can be accessed in the lower portion of neck 2 , which portion is not covered by joint ball 4 , through an opening 6 having an axis transverse to { TAIL ~ the bore axis }
OTH HEAD HEAD HEAD HEAD HEAD 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL