{HEAD ~ The first and second rod retainers} are locked in a raised position with {TAIL ~ any suitable locking device}, such as a latch 
{ HEAD ~ The first and second rod retainers } are locked in a raised position with { TAIL ~ any suitable locking device } , such as a latch
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH