the linkage assembly further including a retainer operable to transfer {HEAD ~ forces} between {TAIL ~ the actuator lever} to the pushbutton 
between
the linkage assembly further including a retainer operable to transfer { HEAD ~ forces } between { TAIL ~ the actuator lever } to the pushbutton
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH