It allows one extremity of crank arm 6 to reach the interior or drum 5, where it connects to {HEAD ~ crank handle} 5 via {TAIL ~ an articulated joint bearing} 17, as illustrated in FIG 2 
via
It allows one extremity of crank arm 6 to reach the interior or drum 5 , where it connects to { HEAD ~ crank handle } 5 via { TAIL ~ an articulated joint bearing } 17 , as illustrated in FIG 2
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH