{HEAD ~ a means} for adjusting tension of said linear means, said means for adjusting {TAIL ~ tension} being located on said mounting assembly, 
{ HEAD ~ a means } for adjusting tension of said linear means , said means for adjusting { TAIL ~ tension } being located on said mounting assembly ,
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH