{HEAD ~ The slider} 47 also has {TAIL ~ slide wings} 47 b in both sides thereof and shaft slots 47 c 
has
{ HEAD ~ The slider } 47 also has { TAIL ~ slide wings } 47 b in both sides thereof and shaft slots 47 c
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH