Initially, that is, when no pressurized air is admitted through the conduit 10 into the chamber 11, {HEAD ~ the springs} 13, 13 will retract the levers 5, 5 and thus the pressing roller 3 at least slightly from the abovementioned opposite major surface so that the leading end of {TAIL ~ the web} 1 can be easily introduced into the advancing arrangement and particularly into the gap between the pressing roller 3 and the driven roller 2 
Initially , that is , when no pressurized air is admitted through the conduit 10 into the chamber 11 , { HEAD ~ the springs } 13 , 13 will retract the levers 5 , 5 and thus the pressing roller 3 at least slightly from the abovementioned opposite major surface so that the leading end of { TAIL ~ the web } 1 can be easily introduced into the advancing arrangement and particularly into the gap between the pressing roller 3 and the driven roller 2
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH