an overhead support assembly secured to {TAIL ~ the upright member} and extending from {HEAD ~ a front} thereof 
an overhead support assembly secured to { TAIL ~ the upright member } and extending from { HEAD ~ a front } thereof
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH