{HEAD ~ a securing plate} having {TAIL ~ plurality} of notches, mounted to said second free end of said second arm 
having
{ HEAD ~ a securing plate } having { TAIL ~ plurality } of notches , mounted to said second free end of said second arm
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH