A working piston reciprocates in one cylinder and is conventionally attached to a crankshaft by {HEAD ~ means} of a connecting rod and {TAIL ~ crankpin} 
of
A working piston reciprocates in one cylinder and is conventionally attached to a crankshaft by { HEAD ~ means } of a connecting rod and { TAIL ~ crankpin }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL