means including {TAIL ~ a single motor} for imparting {HEAD ~ rotation} to both said fan blade and said rotatable means 
means including { TAIL ~ a single motor } for imparting { HEAD ~ rotation } to both said fan blade and said rotatable means
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH