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