The carriage is cycled twice during the time one carrier is pulled from the elevator into {TAIL ~ relatching engagement} with {HEAD ~ the main conveyor} 
The carriage is cycled twice during the time one carrier is pulled from the elevator into { TAIL ~ relatching engagement } with { HEAD ~ the main conveyor }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD