The combination 2, said pin means being supported by {HEAD ~ extensions} of {TAIL ~ said seal support ring} at said opposite sides of said gate 
The combination 2 , said pin means being supported by { HEAD ~ extensions } of { TAIL ~ said seal support ring } at said opposite sides of said gate
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH