{HEAD ~ The actuator} is divided into two cells by a power transfer shaft to which is attached {TAIL ~ a vent follower} 
{ HEAD ~ The actuator } is divided into two cells by a power transfer shaft to which is attached { TAIL ~ a vent follower }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL