A lock screw is interlocked in engagement between the cover and {HEAD ~ the at least one end frame} to obviate {TAIL ~ displacement} of the interconnecting means from their respective interconnections in releasable engagement with each other 
to obviate
A lock screw is interlocked in engagement between the cover and { HEAD ~ the at least one end frame } to obviate { TAIL ~ displacement } of the interconnecting means from their respective interconnections in releasable engagement with each other
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH