The rocker pins move, with respect to the bearing member, when the platform moves horizontally and the suspension assembly is designed so that those pins will abut {HEAD ~ the bearing member} to control {TAIL ~ platform horizontal motion} 
to control
The rocker pins move , with respect to the bearing member , when the platform moves horizontally and the suspension assembly is designed so that those pins will abut { HEAD ~ the bearing member } to control { TAIL ~ platform horizontal motion }
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 OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL