The eccentric discs 213 are rotated in the same direction and at the same speed as the cranks 223 by {HEAD ~ the motion} of {TAIL ~ the ring} 215, thereby rotating the power shafts 214 
The eccentric discs 213 are rotated in the same direction and at the same speed as the cranks 223 by { HEAD ~ the motion } of { TAIL ~ the ring } 215 , thereby rotating the power shafts 214
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 REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH