securing the base of each of {HEAD ~ said channel members} to said {TAIL ~ elongated stringer} so as to retain said channel members in said transversely spaced adjacent relationship and provide means for supporting said plurality of channel members over a source of cooking heat 
to
securing the base of each of { HEAD ~ said channel members } to said { TAIL ~ elongated stringer } so as to retain said channel members in said transversely spaced adjacent relationship and provide means for supporting said plurality of channel members over a source of cooking heat
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH