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