cooperating motion coupling {HEAD ~ means} located on said vehicle and on {TAIL ~ said carrier} which engage one another as said vehicle moves past and adjacent to said side of said loading station for elevating said carrier to a position such that said object can move to said shelf 
cooperating motion coupling { HEAD ~ means } located on said vehicle and on { TAIL ~ said carrier } which engage one another as said vehicle moves past and adjacent to said side of said loading station for elevating said carrier to a position such that said object can move to said shelf
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL 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