{HEAD ~ The stop} comprises {TAIL ~ a rod} 37 which is slidable in a bearing 38 mounted on the carrier 18 
comprises
{ HEAD ~ The stop } comprises { TAIL ~ a rod } 37 which is slidable in a bearing 38 mounted on the carrier 18
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH