{HEAD ~ The shaft} 42 is devised as {TAIL ~ a multi sectional structure} and is fastened at a center of the notch 43 
is devised as
{ HEAD ~ The shaft } 42 is devised as { TAIL ~ a multi sectional structure } and is fastened at a center of the notch 43
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH