Preferably, said curved plates of the transfer member are in {TAIL ~ number} of two and are disposed opposite to one another, and said cam with concave lobes has a number of lobes equal to {HEAD ~ 1.5 times the number} of rollers of the rollers crown 
Preferably , said curved plates of the transfer member are in { TAIL ~ number } of two and are disposed opposite to one another , and said cam with concave lobes has a number of lobes equal to { HEAD ~ 1.5 times the number } of rollers of the rollers crown
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH