The rocker pins have top ends which pivotally connect with the platform, and the pins extend downwardly to pivotally contact a pivot bearing member at their lower ends, so that the rocker pins move to accommodate any horizontal movement of the platform and isolate {HEAD ~ platform movement} from {TAIL ~ the supporting bearing member} 
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The rocker pins have top ends which pivotally connect with the platform , and the pins extend downwardly to pivotally contact a pivot bearing member at their lower ends , so that the rocker pins move to accommodate any horizontal movement of the platform and isolate { HEAD ~ platform movement } from { TAIL ~ the supporting bearing member }
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL