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