Abstract: An image forming apparatus includes an image forming unit to form an image on a recording medium by discharging liquid droplets onto the medium; and a media heater to heat the medium by contacting a rear surface of the medium opposite a surface of the medium on which the image is formed, in which the media heater includes a contact member with a contact surface having a predetermined curvature that the medium contacts, the contact member is a roller member, and the medium closely contacts the contact surface of the contact member across an entire width of the medium in a direction perpendicular to the media conveyance direction.

Abstract: Dryer section for drying a fibrous web supported by at least one drying fabric. The dryer section includes a plurality of heated drying cylinders, a plurality of guide rolls, and a plurality of dampening devices arranged at different locations relative to the fibrous web. Each dampening device applies a quantity of liquid to the fibrous web. In at least in one of the plurality of dampening devices, the quantity of the liquid is adjustable separately in zones transversely with respect to a web running direction. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: The invention relates to a method for conveying and guiding a lead-in strip in a paper machine, in which method a lead-in strip is directed over a run of a conveyor in the paper machine and a longitudinal vacuum effect is produced across the run of the conveyor in the direction of moment of the run of the conveyor.

Abstract: The invention relates to a device for conveying and guiding a lead-in strip in a paper machine, which device comprises a conveyor belt (20) which is permeable to air and in whose connection devices (15) are fitted by whose means a vacuum effect can be produced on the run (20A) of the conveyor belt (20) on which the lead-in strip is conveyed, by means of which vacuum effect the lead-in strip is made to adhere to and kept in contact with said run (20A) of the conveyor belt (20). On said conveying run (20A) of the conveyor belt (20), on the opposite side of the conveyor belt (20) in relation to the lead-in strip, a foil rib/ribs (15) is/are fitted, by whose means said vacuum effect is produced on the conveying run (20A) of the conveyor belt (20).

Abstract: Apparatus for drying receiver sheets prior to such receiver sheets receiving electrophotographic images, including at least one set of preconditioning rotatable rollers with each preconditioning rotatable roller in the set touching an opposing preconditioning rotatable roller to form a nip, wherein at least one of the preconditioning rotatable rollers in the set is formed from zirconia ceramic or zirconia composite; and the apparatus heating at least one of the surfaces of the preconditioning rollers of the set to dry receiver sheets as each passes through the nip.

Abstract: An electronic device that simplifies a use of a data processing system. The electronic device displays on a data processing system display device either data from the data processing system or data generated by the electronic device. The electronic device displays data on the display device to allow entry of data to the data processing system by using a touch sensitive screen placed over the display device. The operation of the electronic device is achieved without modification of the data processing system or application software executing in the data processing system.

Abstract: A single tier drying section apparatus is disclosed for drying a web of paper. The drying section includes a first and a second dryer which are disposed in a single tier for drying the web. A vacuum roll is disposed closely adjacent to and between the first and second dryers for guiding the web from the first to the second dryer. The vacuum roll includes a rotatable roll shell having a first and a second end. The shell defines an outer surface and an internal chamber which extends between the first and the second end of the shell. The shell defines a plurality of channels with each channel extending from the chamber to the outer surface such that the chamber is disposed in fluid communication with the outer surface. A vane mechanism is disposed within the chamber for evacuating the chamber. The arrangement is such that a flow of air flows towards the chamber through the plurality of channels for drawing the web into close conformity with the dryer felt when the web extends around the vacuum roll.

Abstract: The present invention is directed to a method and apparatus for drying a web of paper utilizing impulse drying techniques. In the method of the invention for drying a paper web, the paper web is transported through a pair of rolls wherein at least one of the rolls has been heated to an elevated temperature. The heated roll is provided with a surface having a low thermal diffusivity of less than about 1.times.10.sup.-6 m.sup.2 /s. The surface material of the roll is preferably prepared from a material selected from the group consisting of ceramics, polymers, glass, inorganic plastics, composite materials and cermets. The heated roll may be constructed entirely from the material having a low thermal diffusivity or the roll may be formed from metal, such as steel or aluminum, or other suitable material which is provided with a surface layer of a material having a low thermal diffusivity.

Abstract: A process for producing cellulose triacetate films that is capable of not only suppressing the growth of foreign matter on transport rollers, but also markedly reducing the necessary number of cleaning operations. The process includes steps of casting a solution of cellulose triacetate onto a support having it surface cooled at 20.degree. C. or below, drying and cooling the solution cast onto the support to solidify the cast solution, separating the subsequently solidified film from the support, and transporting the film while it dries on transport rollers. In accordance with the invention, for a weight proportion of the solvents in the film as separated from the support of at least 40 wt %, the surface of the transport rollers is made of a material having a surface energy of no more than 80 dynes/cm at 20.degree. C.

Abstract: The drying section of a paper-making machine has a first drying group of a horizontal row of first drying cylinders which alternate with reversing rollers. A first upper web support belt wraps over the top of a first drying cylinder and then wraps the associated first reversing roller. An adjacent second drying group of a horizontal row of second drying cylinders which alternate with reversing rollers. A second lower web support belt wraps over the bottom side of a second drying cylinder and then wraps the associated second reversing roller. The drying cylinders and their reversing rollers are supported on two longitudinal beams which extend beneath the rows of drying cylinders. The drying cylinders of the second group lie at least at the same height above or higher above the longitudinal beams of the drying cylinders than the drying cylinders of the first group. The seocnd drying group is of a height to provide a clearance space over the floor and beneath lower support belt return path guiding rollers.

Abstract: A chill roll assembly for a printing press scrubs away boundary layers of air and vapors adhered to both side surfaces of a paper web moving through the chill roll assembly. The chill rolls are supported on separate frames which are adjustable relative to one another. Adjustment of the frames moves the chill rolls into and out of positions in which surfaces of the web sections moving in opposite directions around the rolls are held in closely spaced relationship to define a zone of interference. The boundary layers adhering to the closely spaced surfaces of the moving web sections are scrubbed away in the zone of interference.

Abstract: A dryer section of a paper or board making machine has a plurality of dryers. In a first group of dryers, each dryer heats the web somewhat more, but not to the level of the maximum evaporation rate of the moisture contained in the web. As the web is passing the end of the first group, the web is heated to such a high temperature that it reaches the maximum evaporation rate of the moisture in the web. The dryers in the first group have smaller diameters, which may gradually increase up to the region of the maximum evaporation rate, or they may all be of one smaller size. The dryer section has a second group of dryers in which each dryer heats the web to the maximum evaporation rate of the moisture contained in the web. The dryer at the beginning of the second group has the largest diameter. The following dryers in that group can have a smaller diameter. The dryers in the second group may be grouped in groups of decreasing size, or may gradually decrease in size.

Abstract: An apparatus is disclosed for cutting a tail from a web extending from a single tier dryer section to a further single tier dryer section. The apparatus includes a last dryer of the dryer section and a dryer felt extending around the last dryer such that the web is disposed between the dryer felt and the last dryer for drying a second side of the web. A last felt roll is disposed downstream relative to the last dryer such that the felt extends around the last felt roll. A first dryer of the further dryer section is disposed downstream relative to the last dryer and a first felt roll is disposed between the last dryer and the first dryer. A further felt extends around the first felt roll and the first dryer such that the web extends in open draw between the last dryer and the first dryer and thereafter around the first dryer between the further felt and the first dryer for drying a first side of the web. A tail cutter is disposed adjacent to the web for cutting a tail from the web in the open draw.

Abstract: The invention consists of modified dryer section in a papermachine wherein elements normally found in the press section of the machine are included in the dryer section. The modification consists of the use of a press felt instead of a dryer felt and the addition of press rolls, adjacent to the dryer cylinders, forming nips through which the felt and the wet paper sheet to be dried are passed. Pocket ventilation rolls are also included to evaporate water absorbed by the felt from the paper sheet during passages through the nips. The dryer section incorporating these modifications can be viewed as a press-dryer hybrid. Improved dryer efficiency and lower costs per ton of paper produced are the results.

Abstract: A machine for harvesting and drying a standing forage crop comprising in combination a mower, a plurality of heated rollers for receiving a flow of crop cuttings conveyed from the mower to squeeze substantial excess moisture and evaporate any remaining excess moisture above a predetermined reference moisture range so that the crop cuttings upon issuance from the heated rollers are ready for baling immediately. Moisture detecters positioned preferably before and after the heated rollers signal the moisture content of the crop cuttings to a controller. The controller can vary the temperature of the rollers or vary the residency time of the crop cuttings between the rollers or both. In the preferred embodiment the heated rollers are electrically powered induction rollers and a baler is used in combination with the machine.

Abstract: A single-wire drying group in a paper machine is disclosed including a plurality of drying cylinders whose axes are situated in a substantially common plane, a drying wire carrying a web between successive drying cylinders, one or more deflection rolls, each situated between a pair of successive drying cylinders and wherein the web-carrying drying wire has an incoming run from a drying cylinder to a deflection roll whereupon the drying wire runs over a deflection sector of the deflection roll and then to a subsequent drying cylinder. A blow box has a wall which defines a gap space with the incoming run of the web-carrying wire and a gas flow is directed through the gap space to induce an under pressure on the incoming run to fix the web on the drying wire.

Abstract: An apparatus in the dryer section of a paper or board making machine, wherein the section has a plurality of dryers. There is an initial region of dryers, each of which heats the web somewhat more, but not to the level of the maximum evaporation rate of the moisture contained in the web. It is not until the web is passing the end of said initial region that the web is heated to such a high temperature that it reaches the maximum evaporation rate of moisture in the web. The dryers of the initial region have smaller diameters, which may gradually increase up to the region of maximum evaporation rate, or they may all be of one smaller size. Following the initial region the dryer section has a region of dryers in which each dryer heats the web to the maximum evaporation rate of the moisture contained in the web. The dryer at the beginning of that regions has the largest diameter.

Abstract: A web transfer apparatus is disclosed for transferring a web from a press section to a dryer section. The transfer apparatus includes a dryer fabric extending around the dryer section for conveying the web from the press section to, and around, the dryer section so that excess water remaining in the web after the press section is removed from the web when passing through the dryer section. A first plurality of rotatable rolls movably support the dryer fabric and a frame rotatably supports the first plurality of rolls. The first plurality of rolls includes a lead-in roll which is disposed adjacent to the press section for guiding the web from the press section towards the dryer section. The first plurality of rolls also includes a first transfer roll which is spaced relative to the lead-in roll for guiding the web through the dryer section.

Abstract: An apparatus for cooling and setting ink to a web of paper through a series of chill rolls which are arranged such that both sides of the web are cleaned while traveling through the chill rolls and maximum wrap efficiency is obtained. As the web travels from the oven it passes through a series of chill rolls arranged in an upside mode in which a number of the middle chill rolls are mounted on vertically adjustable shafts so that barrier layers which build up on the web can be brought together and scrubbed as they cross in opposite directions on both sides of the web. The placement of the middle chill rolls on adjustable shafts also permits a more efficient wrap of the web around the chill rolls to promote more efficient cooling of the web.

Abstract: A cylinder drying machine including a plurality of reflecting members arranged in opposition to at least the cloth-contacting surface of each of thermal cylinders, the reflecting members being disposed separately over the cloth-contacting surface of a thermal cylinder so that the distance between the front end portion of each of the reflecting members and the thermal cylinder is shorter than that between the rear end portion thereof and the thermal cylinder with the outer surface of the front end portion of one of two adjacent reflecting members opposed via a clearance to the inner surface of the rear end portion of the other.

Abstract: A procedure for boosting the ventilation in drying sections of paper machines provided with a closed hood (1). In the procedure, air is blown on such surfaces which are susceptible to condensate precipitation. Air jets (F.sub.1,F.sub.2) are blown mainly obliquely downward through air ducts (11A,11B) disposed adjacent to both side walls (7A,7B) of the hood (1), above all towards the inner surfaces of the door, hatch and/or window structures (12A,12B,16,17) in association with the lower part of the walls (7A,7B) of the hood (1). The blowing air is taken to the air ducts (11A,11B) from the air within the hood (1) or as a mixture of air within the hood (1) and of dry replacement air. For air ducts (11A,11B) are used horizontal air ducts (11A,11B) extending the length of the hood (1) and on which have been disposed blowing nozzles (8A,8B), of which the blowing direction is obliquely towards the inner surfaces of doors (12A,12B) or equivalent of the hood (1) adjacent to them or below them.

Abstract: A dryer for a papermaking machine including a first heated dryer drum with a second heated dryer drum above the first drum and a turning roll positioned between the first and second drums with a carrying felt threaded over the drums and turning roll with a web being between the drum and felt on each of the drums and on the outer surface of the felt over the roll, with successive third and fourth drums after the first and second drums, with the fourth drum below the third and a turning roll positioned between the third and fourth drums with the web again being directly in contact with the third and fourth drums and on the outside of the felt on the turning roll.

Abstract: Objects constituted by a porous web-like material, such as a paper web, a granular material, such as peat, or a solid material such as wood, are dried by placing the same in contiguity with a fine porous liquid suction surface which itself is in liquid communication with a liquid volume with the latter being in communication with apparatus by which the liquid in the liquid volume is maintained at an underpressure relative to the pressure of the liquid in the object to be dried so that liquid flows from the object into the fine porous suction surface. The liquid flow can be enhanced through the application of an over pressure or through the direction of radiation onto the object to be dried. In one embodiment, the fine porous liquid suction surface comprises the surface of a rotatably mounted cylinder whereby a web-like object, such as a paper web, can be dried as the same is carried on the cylinder surface.

Abstract: A liquid concentrating and solid drying machine in which a pair of heated drums with smooth surfaces disposed in side-by-side relationship project downwardly into a tank, one of the drums preferably being of a smaller size than the other and extending into the liquid in the tank when the tank is operating at a certain level and being disposed above the liquid when the tank is operating at a lower level. Liquid is discharged in the area of close proximity between the two drums, and when both drums are partially immersed in the liquid, they both operate to concentrate the liquid, and when the liquid level falls below the smaller drum, the large drum continues to operate as a liquid concentrating drum and the smaller drum operates as a drying drum.