The other of {HEAD ~ the pair} of {TAIL ~ apertures} to cooperate with the output end of the rotary shaft to form a second connection 
of
The other of { HEAD ~ the pair } of { TAIL ~ apertures } to cooperate with the output end of the rotary shaft to form a second connection
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH