The torque acting at {HEAD ~ any given time} is compensated by an elastic compensating element that exerts a force opposite to the linear displacement of {TAIL ~ the displacement unit} 
The torque acting at { HEAD ~ any given time } is compensated by an elastic compensating element that exerts a force opposite to the linear displacement of { TAIL ~ the displacement unit }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL