whereby the said endless linear means extends continuously between {HEAD ~ all the second rotatable means} and {TAIL ~ said first rotatable means}, 
whereby the said endless linear means extends continuously between { HEAD ~ all the second rotatable means } and { TAIL ~ said first rotatable means } ,
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH