four diagonal plates adapted to individually bisect the corners of a receiving carton, the four plates being joined across {HEAD ~ common ends} to form {TAIL ~ a unitary structure} conforming to the interior of a receiving carton 
to form
four diagonal plates adapted to individually bisect the corners of a receiving carton , the four plates being joined across { HEAD ~ common ends } to form { TAIL ~ a unitary structure } conforming to the interior of a receiving carton
OTH OTH OTH OTH OTH OTH OTH OTH 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 TAIL OTH OTH OTH OTH OTH OTH OTH OTH