The piston of each engine cylinder is connected through a pitman to the crankpin journaled in {HEAD ~ the transmission ring} encompassing {TAIL ~ the eccentric} beneath the particular cylinder 
encompassing
The piston of each engine cylinder is connected through a pitman to the crankpin journaled in { HEAD ~ the transmission ring } encompassing { TAIL ~ the eccentric } beneath the particular cylinder
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH