Abstract: A paper web processing mechanism for applying a combined breaker press and size press coating operation including a first breaker nip formed between a first hard surfaced chilled iron roll and a second coating roll with the first roll being loaded to control the nip pressure and a third roll forming a coating nip with said second roll with the web led immediately through the second nip either by following the second roll or being passed over a guide roll therebetween and the web coated as it passes into the second nip in either a gate roll coating operation by gate rolls nipped against the third roll or by a puddle coating operation with coating supplied to the upwardly facing side of the second nip.

Abstract: Softness and bulk are imparted to untextured dry sanitary tissue sheet web by advancing it under ordinary support point tension through the nip of spaced grooved rotary texturing rolls having complementary partially interdigitated texturing ribs acting on both sides of the web with progressive wave-stretch texturing deformation of the web to release the hydrogen bonds between some of the fibers in the network of fibers in the web without breaking the fibers, and while maintaining the elasticity of the web.

Abstract: A method and apparatus for drying a traveling fibrous web such as paper including a hollow cylindrical dryer drum with means for directing a flow of steam into the drum and for removing condensate from the inside of the drum and positioning an axially elongate bristle support with bristles projecting radially outwardly so that the support and bristles form a brush of substantial uniform axial density to generate a visual high level of turbulence in the condensate and decrease the rotational speed of the layer of rimming condensate formed on the inner surface of the drum shell.

Abstract: A micro-processor is useable which can be programmed so as to provide a controller for a refiner, for example, for a paper stock refiner in which flow and consistency transducers are utilized to measure these parameters of the paper stock and these signals are supplied to a programmable refinery controller which also receives an input of the power supplied to the refinery and supplies a control signal to the refiner so as to control the power supplied to the refinery. One or more fixed inputs may also be supplied to the controller.

Abstract: A doctor assembly for a paper making machine including a force fed lubricated bearing structure therefor with a doctor shaft having a journal axially oscillatable in an annular bearing housing with a bearing sleeve insert between the journal and the housing having axially extending grooves therein with annular outer end seals axially outwardly of the bearing insert and annular lip seals at the end of the bearing insert carried on the bearing and permitting flow of lubricant axially outwardly from the bearing to the annular pressure spaces between the lip seals and end seals and passages extending between the annular pressure chambers between the seals to the center of the bearing and having check valves in the passages preventing back flow but permitting lubricant to flow from the annular pressure chambers to the center of the bearing.

Abstract: A method and mechanism for winding a roll from a continuous traveling web including first and second parallel winder drums supporting the wound roll and one or more rider rolls on top of the roll being wound with the rider roll circumferential location being changed during the winding of the roll to compensate for the changing spring constant of the roll being wound, and in one form applying a force with a second rider roll and in another form with a third rider roll with the rolls being changed in position relative to the roll being wound independent of each other.

Abstract: Both sides of a travelling web are continuously but separately coated with coating material by passing the web through successive roll-formed puddles in a simple three roll arrangement.

Abstract: Objectionable noise is inhibited in sheet spreaders of the type wherein strips of a slit traveling web are laterally separated by running the strips over spaced, bowed hollow spreader bars, frictional resistance being alleviated by floating the strips on a layer of air covering the areas of the bars wrapped by the strips. Tendency toward high frequency vibration and thus noise experienced in high speed operation is inhibited by ventilation in the tangency angles between the bars and the running strips.

Abstract: An injection molding machine having a barrel and a reciprocating and rotatable screw disposed therein. A combination heat transfer and stratification device is disposed between the screw and the outlet of the barrel. The device includes a generally tubular portion having radially outwardly extending ribs. The ribs are in contact with the inner wall of the barrel. Heating means supply heat to the portion of the barrel containing the device and heat is transmitted through the rib portions. A process is disclosed whereby plastic is partially melted in the screw section and then stratified for final melting and thereby reduces mixing to provide a mottled appearance or plastic parts containing long fine filaments such as fine wires.

Abstract: This apparatus utilizes a traveling looped conveyor belt upon which a plurality of previously slit web ribbons are received. The conveyor belt is then movably positioned to partially wrap a spool to simultaneously urge each of the ribbons into wrapping engagement with the rotating spool to be wound into a roll thereon. The traveling conveyor belt is selectively positionable about the spool and drive drum to permit removal of the wound roll and the positioning of a new spool so that transfer of the plurality of ribbons can be made from the wound roll to the next spool quickly and automatically at normal operating machine speed.

Abstract: A method and apparatus for forming a multi-ply web of paper wherein a first layer is carried on the underside of a traveling felt to a bonding station located over the top of a forming cylinder on which a second layer is formed with a water bead in the nip between the layers and a laser or other device for generating a beam of energy at one end of the nip directing the energy along the water bead parallel to the nip and a receiver at the other end to detect the laser beam with means operated by the receiver for controlling the size of the water bead.

Abstract: An apparatus and method of forming a continuous fibrous paper web by depositing the stock onto a forming run of a fourdrinier wire while dewatering the stock and collecting water beneath the wire and depositing the stock onto the wire from a spray or flooded area through a distribution wire extending parallel and in closely spaced relation to the forming run of the fourdrinier wire with the distribution wire aiding in the distribution of the stock and random orientation of the fibers and giving the stock a velocity essentially the same as the forming wire to encourage and maintain the random orientation of the fibers as droplets of the stock are deposited on the fourdrinier wire.

Abstract: A method and apparatus for dry forming a paper, or other nonwoven web, from fibers or fiber flocs. The flocs or bundles are exposed to an oscillating electrostatic field, the resultant mechanical agitation shakes individual fibers loose, which then fall through a screening wire onto a moving forming wire. At a station downstream from the forming section a binder is applied. After appropriate conditioning, the newly formed web is picked off for further processing.

Abstract: A hollow cylindrical dryer drum having an outer surface with a working face for heat drying a traveling paper web with a plurality of axially extending bars on the inner surface of the drum and an annular ring dam positioned against the ends of the bars and spaced from one end of the drum to provide a condensate removal channel between the end of the drum and the ring.

Abstract: A screw for use in the bore of an extruder barrel of a molding machine thermo-plastics material feeder has an intermediate section of circumferentially interrupted helical flights or screw threads with inclined ramps on the leading ends of the interrupted flights or threads effective to flatten unmelted lumps of plastics material for increasing the surface area thereof to enhance heat transfer for expediting melting of the material. The tapered ramps are preferably longitudinally grooved forming shallow pockets gripping the plastics material and shearing the lumps as they are wedged between the ramps and bore of the extruder barrel. The peripheries of the flights or screw threads are spaced from the bore of the extruder barrel to define extrusion gaps therebetween with the gaps diminishing in thickness from the inlet to the outlet ends of the screw section or zone.

Abstract: A fibrous web is continuously formed between inner and outer endless foraminous forming belts between which stock slurry is fed from a headbox, the belts being held in tension as they wrap a first convexly curved forming run surface from which the outer belt is separated immediately following the forming run, the inner belt carrying the wet web then running over a second convexly curved surface from the offrunning side of which the inner belt is then separated and a porous pickoff belt is pressed by a substantial convex area of an imperforate pickup roll against the wet web on the inner belt, the inner belt being guided to diverge from the pickoff belt commencing at the off-running end of the convex area of contact of the pickup roll and the wet web being forced to adhere to the pickoff belt by the vacuum action of the imperforate surface of the pickup roll. By multiplication of the apparatus a multiply web can be formed.

Abstract: An apparatus and method for making a paper web with a traveling fourdrinier wire and a looped mating wire pressed into the fourdrinier wire along a forming run and a headbox with a slice for delivering stock at the head end of the forming run, the mating wire being supported on rotatable rolls fixedly carried on a frame with the frame supported for pivotal shifting movement about an axis at right angles to the plane of the fourdrinier wire so that the entire carrying unit for the mating wire is shifted to cause it to track properly.

Abstract: Multi-ply web forming stock jets directed through a slice from a single headbox into a forming zone between converging forming surfaces in a papermaking machine are maintained separated for a sufficient interval after leaving the slice opening to permit drainage and partial ply formation of the stock delivered by one of the stock jets to one of the forming surfaces before the stock in a second of the stock jets joins in fiber felting laminar relation with the contiguous surface of the partially formed ply. Flexible divider sheet members divide the slice chamber of a headbox into separate flow passages aligned respectively with different ones of headbox subchambers to receive streams of the stock from the respective subchambers and maintain the streams separated, and the flexible members extend a substantial distance out of the slice opening in the direction of flow of the stock jets to maintain stock jets separated for a sufficient interval after leaving the slice opening.

Abstract: A headbox for a paper making machine having a slice chamber with a vertical tube bank supplying the slice chamber and a distributor chamber behind the tube chamber tapering from a larger size to one side of the machine to a smaller size at the other side of the machine with the lower floor of the header chamber sloping upwardly and a pivotal cover extending over the tube bank and header chamber openable for access to the tube bank and header chamber.

Abstract: A web spreading and guiding device to maintain a running paper sheet making foraminous web comprising a wire or pick-up felt transversely taut and straight running in a papermaking machine, has a pair of free running pneumatic tires having their treads in nipping relation to one another to engage a margin of the web in the nip, the tires being carried by an arm which is pivotally biased to effect transverse web stretching bias of the tires on the web margin running through the nip. Generally one of the devices will be mounted to act on one margin of the web and another of the devices on the opposite margin of the web and the devices being cooperatively biased to stretch the web in opposite directions. Means are provided to control the tire bias for correcting any deviations of the web from a straight running path.