{HEAD ~ Jaws} 14, 16 are fixably connected to {TAIL ~ endpieces} 56, 58, respectively, which are in turn rotatably connected to mounts 52, 54, respectively 
{ HEAD ~ Jaws } 14 , 16 are fixably connected to { TAIL ~ endpieces } 56 , 58 , respectively , which are in turn rotatably connected to mounts 52 , 54 , respectively
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH