Manual application of a push type force to {HEAD ~ a handle} actuates {TAIL ~ a cumulative timer circuit} for recording the elapsed time at which an exerted force exceeds a pre established threshold force 
Manual application of a push type force to { HEAD ~ a handle } actuates { TAIL ~ a cumulative timer circuit } for recording the elapsed time at which an exerted force exceeds a pre established threshold force
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH