{TAIL ~ The third arm} 48, via its lobe section 50, permits linear movement in {HEAD ~ the directions} of the Y axis 
{ TAIL ~ The third arm } 48 , via its lobe section 50 , permits linear movement in { HEAD ~ the directions } of the Y axis
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH