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