{TAIL ~ a supporting shank} pivotally mounted to {HEAD ~ said securing plate}, wherein said supporting shank being capable of rotating horizontally between an “in” position and an “open” position 
{ TAIL ~ a supporting shank } pivotally mounted to { HEAD ~ said securing plate } , wherein said supporting shank being capable of rotating horizontally between an “ in ” position and an “ open ” position
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH