The heating devices 26, 27, 28, 29 for the drying of {TAIL ~ the web} can be of {HEAD ~ any development} 
The heating devices 26 , 27 , 28 , 29 for the drying of { TAIL ~ the web } can be of { HEAD ~ any development }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD