{TAIL ~ The pivot} 8 wherein said wedge includes {HEAD ~ a pair} of superposed wedges bearing on each other through two facing flat faces inclined to the axis of said axial housing 
{ TAIL ~ The pivot } 8 wherein said wedge includes { HEAD ~ a pair } of superposed wedges bearing on each other through two facing flat faces inclined to the axis of said axial housing
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH 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