The carrier and the vehicle are provided with structures which engage one another as the vehicle is so moved so that the vehicle serves to move {HEAD ~ the carrier} along {TAIL ~ the ramp} 
along
The carrier and the vehicle are provided with structures which engage one another as the vehicle is so moved so that the vehicle serves to move { HEAD ~ the carrier } along { TAIL ~ the ramp }
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