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