A feed device comprising driving devices is movable in {TAIL ~ a radially driven manner} on {HEAD ~ the inner housing} and is aligned with the at least two openings 
A feed device comprising driving devices is movable in { TAIL ~ a radially driven manner } on { HEAD ~ the inner housing } and is aligned with the at least two openings
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH