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 {HEAD ~ a rotary drive} suspended by {TAIL ~ means} of a universal joint type coupler 
suspended by
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 { HEAD ~ a rotary drive } suspended by { TAIL ~ 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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH