Shock or {HEAD ~ vibration} to {TAIL ~ device} 10 resulting in movement of plates 16 translates into a tightening action of clamps 22 on plates 16 
Shock or { HEAD ~ vibration } to { TAIL ~ device } 10 resulting in movement of plates 16 translates into a tightening action of clamps 22 on plates 16
OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH