The up stream end of removable wear plates 84 is connected to the retainer ring 58 by {HEAD ~ means} of {TAIL ~ another set} of retainer ring holding plates 90 as shown in FIG 2 
The up stream end of removable wear plates 84 is connected to the retainer ring 58 by { HEAD ~ means } of { TAIL ~ another set } of retainer ring holding plates 90 as shown in FIG 2
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH