Wherein the interlinked linkage is configured by a pair of primary struts, and a pair of secondary bars pivotally interlinked with {HEAD ~ pinshafts} at ends of {TAIL ~ the struts} and the bars 
Wherein the interlinked linkage is configured by a pair of primary struts , and a pair of secondary bars pivotally interlinked with { HEAD ~ pinshafts } at ends of { TAIL ~ the struts } and the bars
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 OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH