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