Abstract: In a web reeling machine such as the reeling portion of a paper machine the successful introduction of a fresh reel bar to maintain the continuity of the reeling operation is dependent upon turn-up of the web onto the rotating reel bar followed by build-up of a roll on the reel. The end of a bifurcated fiber optic cable is positioned adjacent the jaw clamps that retain the stationary end bearings of the reel bar so as to provide an indication of the occurrence of successful turn-up by detecting a persevering change in the clamp/bearing relationship due to roll growth. The other end of the bifurcated cable is connected to an light emitter and a light detector. The light emitter generates a light signal along the bifurcated fiber optic cable towards a light guide path in a jaw clamp so that the light signal passes through the light guide path.

Abstract: A reel bar drive for use with a web winding system, such as the dry end of a paper making machine has a pair of driving wheels adapted to make driving contact with a peripheral end portion of a reel bar. The driving wheels are mounted on a pivotal platform located to one side of the winder. The platform is pivotable in an arcuate path having a component direction relative to the axis of the reel bar so as to move the driving wheels into driving relation with a peripheral end portion of the reel bar. Owing to the pivotal mounting arrangement, the position of the driving wheels are adjustable to compensate for changes in the reel bar position as it commences its web reeling operation. The reel bar drive may utilize its self weight to enhance frictional contact between the drive wheels and the reel bar. Upon withdrawal of the supporting platform, the drive wheels are displaced completely clear of the winding system.

Abstract: There is disclosed a load/relief apparatus for use in a calender of a papermaking machine having a force transfer member positioned between on upper fluid actuator and two lower spaced apart fluid actuators. A linking arm is releasably connected to the lower part of the transfer arm spaced between the two lower fluid actuators. The linking arm is adapted to be connected to a lifting arm for a calender roll. In operation, the upper fluid actuator exerts a generally linear downward force that is transferred by the transfer member moving downwardly against the linking arm and thereby pushing the lifting arm down. The lower fluid actuators are adapted to exert a generally upward linear force that is transferred by the transfer member moving upwardly raising the linking arm and the lifting arm. The linking arm is releasable from the transfer member to permit the linking arm to be lowered beyond the travel associated with the deflation of the lower fluid actuators during normal relief operation.

Abstract: A reel bar loading device is provided having sloping storage rails located above the driving roll. The storage rails are pivotally connected at their lower ends to second rails. The second rails have upper end portions, downwardly sloping portions and lower end portions. The second rails in a first position are in alignment with the first rails and provide a continuum of the track permitting the reel to descend the second rails into an awaiting transfer arm mechanism. The second rails are pivotal outwardly precluding movement of a reel from the first rails and allowing the transfer arm mechanism to move into a winding position. A pair of lowering arms engage the reel at the opposite ends of the reels adjacent to and inside of the second rails to control the descent of the reel over the second rails when the second rails are in their first position.

Abstract: The fabric cleaning system for cleaning a fabric such as the wire on a paper machine includes a cleaning station through which the fabric continuously passes. In the station cleaning fluid is directed onto a surface of the fabric, contacts the fabric to remove at least some of the debris and is collected in a collecting chamber. The dirty fluid is cleaned of debris in a cleaner such as a screen and is then returned and re-used to clean the fabric. Preferably the cleaning fluid is applied to the fabric through slots with their outlet openings adjacent the fabric and formed by tapered passages that diminish in height in the direction of the travel of the fabric. Preferably the slots extend the full width of the fabric.

Abstract: A papermaking machine having a forming wire, a headbox and a forming board is disclosed. The headbox includes a lower slice having an apron positioned substantially in alignment with and closely adjacent the forming board such that as the forming wire travels over the the forming board the jet of paper stock leaving the headbox is laid onto the wire at the board at substantially zero angle of impingement. The forming board further includes a lead-in blade over which the wire travels. The blade acts to deflect fluid, normally pumped by the wire along its path of travel, away from the underside to the jet of paper stock prior to this jet reaching the forming board.

Abstract: A reel bar loading device is provided with a pair of lowering arms onto which reel bars are rolled one at a time, the lowering arms being pivotally movable from an upper position adapted to receive a reel bar on a supporting surface thereof and a lower transfer position while a reel bar rolls along the length of the surface into contact with an abutment and is moved downwardly with the lowering arms into position on a reel transfer device in the lower transfer position. The reel lowering arms are preferably provided with a cam stop that moves into stopping position to stop movement of reel bars into a loading position when the lowering arms are not in their upper positions.

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.

Abstract: A reel bar loading device is provided having sloping storage rails located above the driving roll. The storage rails have lower ends that collapse bringing the reel into the initial winding contact with the driving roll. Once initial winding contact has been established, a transfer arm can be brought up to engage the reel and move the reel into a second winding position remote from the rails while keeping the reel in winding contact during this movement.

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.

Abstract: A twin wire paper former incorporating a forming shoe having a curved solid forming surface across which the forming wires pass with one of the wires in direct contact therewith and the other sandwiching the stock from which the paper is to be formed therebetween. The tension in the other wire drives water from the stock contained between the two wires, out through the other wire, and the shoe is vibrated thereby to reduce the friction between the wire contacting the shoe, to reduce wear of the contacting wire and to improve drainage.

Abstract: An improved pressure actuator particularly suited to loading of rolls in the calender stack is disclosed. The actuator is formed by a pair of spaced arms interconnected by a link. A pressure absorbing locking bar is interposed between a pair of adjacent ends of the arm and a pressure actuator is interposed between the arms of the opposite side of the link. The link itself is pivoted to the frame so that movement of the link around its pivot point on the frame causes the arms to move so that one arm moves into an active position and the other into a reactive or pressure applying position and vice versa. In the reactive position, a locking member on a pressure plate that engages the locking bar locks the arm in reactive position in position so that pressure applied by the actuator between the opposite ends forces the other arm to pivot around its pivotal connection to the link, thereby applying pressure to a load in one direction.

Abstract: A reversible slice lip for paper machine is formed with two discrete slice edges extending substantially parallel and forming opposite longitudinal edges of the slice lip. The slice lip is provided with a mounting means and is formed substantially symmetrical about its longitudinal axis so that it may be mounted on the headbox with one or the other of the slice edges in operative position.

Abstract: A rider roll structure is provided by a beam with at least a pair of rider rolls mounted thereon with adjacent ends of the rolls being mounted in a bearing assembly wherein shafts extending from each adjacent end of each roll are provided at their axial ends with a land and groove configuration so that the lands formed on one shaft are received in the grooves formed on the other and a resilient member is received within the grooves and is shaped so that it extends between mating land areas so that drive from one roll to the other is through the resilient member and the resilient member can accommodate slight angles between the axes of rotation of the rolls. A sleeve surrounds the shaft and the resilient member is keyed to this sleeve which in turn is mounted in a bearing that is mounted on the rider roll beam.

Abstract: A rider roll beam is mounted in a pair of opposed frames having substantially vertical guide surfaces and the axial ends of the beam are provided with curved surfaces cooperating with the vertical guide surfaces to permit the beam to pivot about a horizontal axis located at about the midpoint of the machine and extending substantially perpendicular to the longitudinal axis of the beam. The rider roll beam is also provided with tongues that are received in glide slots having substantially vertical sidewalls so that the beam cannot pivot about its longitudinal axis or a substantially vertical axis. Preferaly the rider roll beam will be directly supported at each end by a hydraulic cylinder that raises and lowers each end of beam substantially independently of the other.