The machine 6 wherein the belts, {HEAD ~ the wheel} and the shoe surfaces define axially spaced pairs of {TAIL ~ path segments} whereby the machine is configured such that the segments form a spaced pair of seals in a web transported by wheel rotation 
The machine 6 wherein the belts , { HEAD ~ the wheel } and the shoe surfaces define axially spaced pairs of { TAIL ~ path segments } whereby the machine is configured such that the segments form a spaced pair of seals in a web transported by wheel rotation
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD 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