The grid is of the type adapted to carry a pan along {HEAD ~ a path} defined by {TAIL ~ a conveyor} to which the grid is attached 
defined by
The grid is of the type adapted to carry a pan along { HEAD ~ a path } defined by { TAIL ~ a conveyor } to which the grid is attached
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH