Abstract A web drier wherein the fabric carries the web to be dried around a plurality of drier drums in a sequence with at least one turning roll positioned between each roll in the sequence so that the web carried on the fabric is in direct face-to-face contact with each of the drums. The fabric is in face-to-face contact with each of the rolls between the drums and the web is held to the fabric by suction applied by blow boxes appropriately located relative to each turning roll. The rolls may be arranged in stacks with there being two turning rolls between adjacent stacks at one end of the stacks and none at the other. This arrangement improves the drying capacity of the drier by insuring that the web is in direct contact with the heated surface of the drier drums and may be used with existing 2-tier drier drum arrangements or with drums stacked higher or even as a single row of drums.
A web transfer between a pair of felts comprising a first felt and a second felt, a web to be transferred from the first felt to the second felt, a transfer zone wherein said felts are in substantially parallel and face-to-face relationship supporting a web therebetween, said transfer zone being free of any means other than the two felts for the transfer of the web from the first felt to the second felt, the web to be transferred being initially carried on an outer surface of said first felt, a blow box having a working surface located adjacent an inner face of said second felt to direct flow of air along the working surface of said blow box adjacent said inner face of said second felt thereby to reduce the pressure adjacent said inner face and induce flow of air through said second felt to apply suction forces to said web and to adhere said web to said second felt thereby effecting transfer of said web from said first felt to said second felt.
Claim 2
Dependent Claim
174 words
A web transfer between a pair of felts comprising a first felt and a second felt, a web to be transferred from the first felt to the second felt, a transfer zone wherein said felts are in substantially parallel and face-to-face relationship supporting a web therebetween, said transfer zone being free of any means other than the two felts for the transfer of the web from the first felt to the second felt, the web to be transferred being initially carried on an outer surface of said first felt, a blow box having a working surface located adjacent an inner face of said second felt to direct flow of air along the working surface of said blow box adjacent said inner face of said second felt thereby to reduce the pressure adjacent said inner face and induce flow of air through said second felt to apply suction forces to said web and to adhere said web to said second felt thereby effecting transfer of said web from said first felt to said second felt.