Abstract:
A compensating linkage for a continuous motion saw for elongated web plies wherein a skew arm is pivotally connected at its ends to a drive arm and where the drive arm at its ends carries disc blades and sharpening grinding stones for the blades, the ends of the drive arm being pivotally connected for two degrees of freedom with brackets which in turn are connected to an eccentrically mounted control arm, the linkage resulting in compensation for the skew angle to provide a cut perpendicular to the movement of the web plies and reduction of centrifugal forces and elimination of cyclic centrifugal loading on the blade grinding systems.
Abstract:
A method and apparatus for producing raised leg cuffs for diapers in which an elastic band is oriented in a straight line direction so as to be adhesively encapsulated between the fold portions of a diaper web while the same is passing through a folding board.
Abstract:
A method of forming and bonding fluff pads for diapers and the like wherein both the steps of forming and bonding are performed on the same vacuum drum.
Abstract:
Apparatus and method for stacking product such as flexible paper towels including a slotted wheel in combination with at least two endless chain conveyors equipped with finger assemblies which are orbitally offset so that while one finger assembly of one chain conveyor is accumulating a plurality of substacks, a first finger assembly of the other chain conveyor is being readied to take over the development of a successive stack, and programmable servo motor associated with the chain conveyors for varying the finger assembly advance during different portions of the orbital movement of the finger assemblies.
Abstract:
A sealing assembly for a liquid fountain such as is employed in flexographic printing and which is especially adapted for the split color printing wherein a foam layer separates the various ink compartments and is equipped with a liquid flow slot in the portion facing the liquid metering roll so as to provide limited axial flow of a slot liquid which is compatible with the ink in the various compartments.
Abstract:
A rotary stacker and method wherein a stream of web units such as napkins is advanced along a longitudinally extending path in longitudinally spaced relation toward and over a magazine, each napkin being pressed into the magazine by cams applying pressure at a plurality of longitudinally spaced areas over the magazine and orienting the cams so as to remove the pressure on the upstream cam just prior to the entry of the leading edge of a unit subsequent to the one being pressed and while maintaining the pressure on the previously pressed unit by the downstream cams.
Abstract:
A tape applying apparatus to advance, cutoff, and transport two or more adhesive covered tape strips and apply same to a continuously moving series of connected diapers before the diapers are cut into discreet products; the apparatus being arranged so that the distance between two consecutive tapes is different from the distance between two other tapes, and all tapes so applied will be cut at equal lengths; and since different spacing requires different tape feed speeds, the invention includes two tension isolating and feed roll pairs arranged to allow an excess of tape to be looped therebetween, including loop detection devices which rotate the first and second tension isolating roll pairs at different speeds to maintain said loop of excess material within predetermined minimum and maximum limits.
Abstract:
Apparatus for interfolding webs, including two clusters of vacuum rolls, each in a generally hexagonal arrangement, each cluster having spaced apart web cutoff means and interfolding means, the vacuum rolls being arranged to develop four equal length paths between the cutoff means and the interfolding means, the apparatus being equipped with vacuum switching means to sequentially change paths of travel of the webs.
Abstract:
Apparatus for folding spaced segments of web material such as diapers having intermediate side flaps overfolded in the crotch portion making use of a vacuumized continuously moving belt system for gripping one surface of a planar web except for the flap portions and a frictionalized belt system aligned with the vacuumized belt system for engaging the other surface of the web to progressively fold the flap portions.
Abstract:
A rewinder mandrel, wherein separate adjustment is provided for positioning the core locking lugs and for adjusting the spring tension for pivoting the lugs to uncammed position; and in which novel replacable core lugs are provided, having a bifurcation providing legs facilitating snap-in assembly.