In FIGS 14 and 15, still another alternative construction is illustrated in one form of {HEAD ~ the invention} as {TAIL ~ a locking finger} or flange 113 lanced from cover 23 adjacent each smaller stepped opening 99 
In FIGS 14 and 15 , still another alternative construction is illustrated in one form of { HEAD ~ the invention } as { TAIL ~ a locking finger } or flange 113 lanced from cover 23 adjacent each smaller stepped opening 99
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH