an inclined ramp located on {TAIL ~ said loading station} adjacent to said {HEAD ~ side} thereof, 
an inclined ramp located on { TAIL ~ said loading station } adjacent to said { HEAD ~ side } thereof ,
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH