At the same time, there is essentially no lost motion during {TAIL ~ the vertical movement} of {HEAD ~ the link} which drives the arm 71 posititvely in accordance with movement of the rod 52 
At the same time , there is essentially no lost motion during { TAIL ~ the vertical movement } of { HEAD ~ the link } which drives the arm 71 posititvely in accordance with movement of the rod 52
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH