conveying systems in the nature of air transport systems for sheets and webs replacement parts thereof, for the conveying of webs and sheets, for the feeding of webs from a roll, for the supply of webs to a winding unit, for the stacking of sheets onto a pile and for the supply of sheets to a pile, comprising of flotation bars, air channels and blowers, used for the transport of paper, metal strips, plastic films and foils, all for use with paper machines, converting machines, impregnating plants, namely those in the nature of machines that saturate paper with impregnating varnish, coating lines, namely, machines for coating paper with laminating resin, offset printing lines, namely, offset dye drying plants, metal strip machines and drying plants used following dying plants, impregnating plants and coating lines, that machines comprising of calenders and deflecting rollers; conveying systems in the nature of air transport systems for sheets and webs and replacement parts thereof, for the conveying of webs and sheets, for the feeding of webs from a roll, for the supply of webs to a winding unit, for the stacking of sheets onto a pile and for the supply of sheets to a pile, comprising of flotation bars, aid channels and blowers, used for the transport of paper, metal strips, plastic film and foils, all as parts of paper machines, of converting machines, of impregnating plants, namely those in the nature of machines that saturate paper with impregnating varnish of coating lines, namely machines for coating paper with laminating resin, and of web offset printing lines, and as parts of calenders and of deflecting rollers; conveying systems in the nature of air transport systems for sheets and webs and replacement parts thereof, for the conveying of paper webs and sheets, for the feeding of paper webs from a roll, for the supply of sheets to a pile, comprising of flotation bars, air channels and blowers, use for the transport of paper, metal strips or plastic films and foils, all as part of drying plants, namely those in the nature of plants that dry fluids, namely dye and impregnating varnish and laminating resin, on sheets and webs, namely on paper sheets, on metal strips, on plastic films and on foils, namely as parts of offset dryers, of dye dryers, of impregnating dryers, of coating dryers