Between the cylindrical rebate 27 and {TAIL ~ the sloping surface} 25, {HEAD ~ each fly weight} 22 has a radially extending thrust surface 29 
Between
Between the cylindrical rebate 27 and { TAIL ~ the sloping surface } 25 , { HEAD ~ each fly weight } 22 has a radially extending thrust surface 29
REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH