{HEAD ~ Various provisions} are made for retaining {TAIL ~ the pivoting ball support} in this position after such latching has occurred 
are made for retaining
{ HEAD ~ Various provisions } are made for retaining { TAIL ~ the pivoting ball support } in this position after such latching has occurred
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH