{HEAD ~ A system} to measure {TAIL ~ the installation torque} of a screw pile comprises machinery suitable to drive the screw pile into the ground, said machinery further comprising a rotary drive suspended by means of a universal joint type coupler 
to measure
{ HEAD ~ A system } to measure { TAIL ~ the installation torque } of a screw pile comprises machinery suitable to drive the screw pile into the ground , said machinery further comprising a rotary drive suspended by means of a universal joint type coupler
HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH