Protuberances within the shelf retainer engage the top edge of the shelf bracket to prevent cutting of {TAIL ~ the retainer} by the bracket in {HEAD ~ the presence} of high stresses 
Protuberances within the shelf retainer engage the top edge of the shelf bracket to prevent cutting of { TAIL ~ the retainer } by the bracket in { HEAD ~ the presence } of high stresses
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH