The other half of the socket is formed by {TAIL ~ a jaw plate} also having a concave, circular toothed depression positioned on the opposite side of {HEAD ~ the ball} to the clamp plate extension 
The other half of the socket is formed by { TAIL ~ a jaw plate } also having a concave , circular toothed depression positioned on the opposite side of { HEAD ~ the ball } to the clamp plate extension
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH