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