Abstract: Newly formed battery plates are fed singly edgewise into radially open pockets in a first transfer wheel, while a like number of wrapper sheets are folded in half and pressed radially into pockets in a second transfer and sealing wheel. Vacuum plates in the sides of the pockets in the second transfer wheel hold the wrapper sheets open. Both wheels rotate step by step, and each plate is released to fall by gravity between folded sides of each wrapper. Centering rails carried around segment of second wheel pass through notches in edges of wrapper sheet to center battery plate in wrapper. Plates and wrappers carried by second wheel then pass hot air jets to soften edge of wrapper sheet; after which clamp blades carried by sides of vacuum plates are cammed closed to seal side edges of wrapper sheets over side edges of each plate. Clamp plates then open, and wrapped battery plate is released and delivered by gravity from second transfer wheel to off-feeding conveyor.

Abstract: An apparatus for transporting and wrapping pipe insulation comprising a frame and a pair of arms mounted on the frame for swinging movement about a longitudinal axis. A row of longitudinally spaced vacuum pads is suspended and on each arm a pair of transversly spaced rows of longitudinally spaced vacuum pads are suspended on the arms inwardly of the first-mentioned rows on said arms. Vacuum can be selectively supplied to the rows of vacuum pads. Means are provided for swinging the arms toward and away from one another whereby when the arms are extended and the vacuum pads are brought into engagement with a generally flat piece of insulation, the insulation is engaged and may be lifted and transported by manipulating the frame to bring the insulation adjacent a length of pipe and the arms may thereafter be swung inwardly to wrap the insulation about the length of pipe.

Abstract: The method of making a gasket structure for sealing mating parts together in which the body portion of the gasket structure is formed by convolutely wound annular alternate discrete layers of a carrier material and a fluid impermeable polymeric material adhered thereto of substantially uniform thickness from layer to layer, and cured, and characterized by having the body portion of the gasket structure, throughout substantially its entire extent, compacted to a substantially uniform density. The gasket structure may be formed with a bead of relatively low density, as compared to the body portion, on at least one surface thereof to compensate for surface contour variations, and a coating layer may be provided covering the gasket structure, which is cured after application and which is characterized by its impermeability to, and resistance to, the fluids which are to be sealed off, and to minimize the clamping forces required for compaction to completely seal the mating parts.

Abstract: A process for manufacturing a xerographic toner cartridge containing a heat-fusible toner powder situated in a container having an open end surrounded by a peripheral lip. An elongated tongue of a material having non-directional shear strength characteristics is placed on top of the opening, with a thermoplastic adhesive layer being disposed between the container lip and the tongue. The adhesive is activatable by heat and pressure, and once activated adheres more strongly to the peripheral container lip than to the tongue. The adhesive is bonded to the tongue and the peripheral lip by a heated platen having a shape conforming to that of the lip. The heat and pressure applied is sufficient to form the desired adhesive bonds, but the temperature and time employed are insufficient to cause deterioration of the toner powder in the container.

Abstract: An improved box taping device of the type which propels a box past a tape applying head. The device includes means for holding a portion of the tape transverse of the box path so that it will engage the leading surface of the box and subsequently be applied along the top surface of the box as the box is propelled through the device. The device also includes means adapted to extend a U-shaped length of the tape along the trailing surface of the box after the box is taped along its top surface. During such movement one extended portion of the U-shaped length of tape is adhered to the trailing surface of the box. The extended portions of the U-shaped length of tape are separated after they extend entirely across the path and the portion not adhered to the box is retained in that position transverse of the path so that the device is ready to tape another box moved along the path.

Abstract: The method of surface treatment of wooden panels which comprises drawing off carrier strips or sheets impregnated with hardenable synthetic resin from supply rollers, and laying the strips onto the top and bottom surfaces of the panel. The sheets are attached to the panel along the edges thereof by heat-bonding, using a heated tool which presses the strip to the corner formed by the intersection of the surface of the wooden panel with the perpendicular side edges thereof. The wooden panel, with carrier sheets attached thereto along its edges, is then placed in a heated press, where the sheets are pressed and heat-bonded to the surfaces of the panel.

Abstract: A nip roll is disclosed having an inner substantially rigid cylindrical member and an outer cover member of a generally incompressible substantially resilient material positioned about the inner member with reinforcing means embedded within the outer cover member having a tensile modulus greater than the modulus of the generally incompressible resilient material. The reinforcing means are so oriented with respect to the inner member that upon positioning the roll in nipped relation with a rigid roll which is externally driven, depending upon the direction of rotation, portions of the outer cover member are displaced and recoiled at the entrance and exit to the nip to provide resulting forces on web materials passed therethrough, the forces being controllable for treating such web materials. Depending upon the direction of rotation, the web material will either be compacted or elongated. A method is disclosed for producing the inventive nip roll.

Abstract: The invention contemplates a method for making fabric-lined bearing wherein the fabric is of knitted construction, from yarn consisting primarily of low-friction filaments and high-strength filaments, and wherein the exposed filaments at the bearing interface are primarily oriented to be generally transverse to the predominant direction of intended motion under load at the bearing interface.

Abstract: Tape applying mechanism of carton sealing machines for feeding pressure sensitive tape having an uncoated back side and an adhesively coated face and to apply the latter to end panels of an advancing carton and lap it over the opposed longitudinal edges of folded-in side flaps of such carton. It includes means to guide the tape along a path extending toward and for lap against a wipe-on applicator cylindrical roller that is movably supported for swing toward and away from a carton travel path with the adhesively coated face exposed outward away from this roller.

Abstract: The invention is a method of automatically threading the wind-up section while the formation section runs at full speed. The stopped wind-up section is threaded with a leader while the formation section runs at full speed. The wind-up section is started. When speeds match the two webs are spliced, the leader is fed from its feed and the production web from waste so that the leader draws the production web through the wind-up section. The splicer may also act as an automatic dump.

Abstract: A method for producing releasable laminates by coating a water-dispersed pressure-sensitive adhesive onto either a web of paper face stock or a web of release paper, joining the two webs together with the adhesive therebetween while the adhesive is still wet, and then drying under moderate conditions to produce a relatively wrinkle-free and flat laminate having an exceptionally smooth and uniform adhesive layer.

Abstract: The raw metal edge on the inside lap in an adhesively-bonded lap side seam of a tubular body is protected from chemical attack by a corrosive substance from within the tubular body by applying a side seam adhesive along one marginal edge portion of the body blank, bending the other parallel marginal edge portion of the blank to form a crease thereon, rolling the blank into tubular form to place the adhesively-coated marginal edge portion and the creased marginal edge portion in an overlapping, facing position, and imbedding the creased marginal edge portion into a portion of the adhesive on the one marginal edge portion to bury the raw metal edge, the imbedding being achieved by compressing the overlapped marginal edge portions together to assemble the lap side seam of the tubular body.

Abstract: A method of making electric cable having a plurality of electric conductors stranded together with a deformable semi-conducting strand in each valley between the conductors and a shielding composition around and in intimate contact with the conductors and strands. The conductors and strands are stranded together into a stranding die and the plastic composition is forced around them while they are in the stranding die.

Abstract: The invention relates to an apparatus for the assembly or permanent adhesion of sheets of glass with sheets of plastic material, comprising a pair of pressure rollers between which one passes the layers superimposed for assembly, which rollers being provided with, on a length corresponding at least with the size of the layers to be assembled, a hollow elastic covering which is filled with a fluid under pressure. In each roller the elastic covering is mounted to the roller (in a manner similar to a vehicle tire) by means of two rim-like elements, one of which is movable axially of the roller toward and from the other such rim. The elastic covering is like a tire but oversize in the axial direction. By adjusting one of the rims relative to the other, or the fluid pressure or both, the shape of the elastic tire-like member may be modified within wide limits to accommodate sheets of glass having complex, compound curves.

Abstract: Plastic bags are obtained from a tubular foil of thermoplastics by means of heatsealing. The heatsealing member acts upon a lower wall of the flattened non-tensioned tubular foil, and without a counter pressure to the upper wall of the foil. The entire thickness of the lower wall is plasticized but only a portion of the thickness of the upper wall is plasticized. The assembly of heated lower wall and partly heated upper wall facing each other is passed through two pressure rolls, the roller surface contacting the surface which has not been in contact with the heat sealing member consisting of metal is cooled.

Abstract: Method of and apparatus for securing the tail or outer terminal convolution of a toilet tissue cant or similar roll product to the convolution immediately subjacent the tail. The tail of the roll product is secured by means of adhesive, and the method includes the step of ejecting a predetermined quantity of adhesive directly onto the subjacent convolution of the roll product while the tail is unwound therefrom. The adhesive is distributed along the length of the cant at spaced apart locations adapted to underlie the rewound tail, thereby allowing the tail to be adhesively secured to the cant. The apparatus includes adhesive applicator structure comprising a plurality of modules each of which is releasably secured to the apparatus so that it can be removed therefrom and replaced as an integer; and each adhesive applicator module includes a plurality of dispensing nozzles operative to eject a measured quantity of adhesive onto a cant underlying the same.

Abstract: A method and apparatus for continuous welding together of sheets of the type in which adhesion is derived from the melting and re-hardening of the sheet material itself rather than from an externally applied adhesive. A sheet, formed into a tube with the opposite sides overlapping, is tensioned longitudinally so as to form longitudinally extending stress lines which appear as ripples, at least at the overlapping edges such that the sheets weld at the bottom of the valleys formed by the ripples. As the tensioned sheet moves continuously between a heating element and a backing plate, both of which are stationary relative to the tube forming means, the sheets weld as the material from the sides of the valley of at least one sheet runs to the bottom of the valley, at which point the weld bead is formed, whereby the thickness of the weld bead may be more than twice the thickness of the original unheated sheet material.

Abstract: The application discloses a means and method for manufacture and assembly of a known pivotally mounted sleeve-type photographic print display device. The display device comprises a relatively rigid planar cardboard base to which there are pivotally attached to at least one surface thereof in mutually staggered relation, a plurality of individual open-ended flattened sleeves, each having a paper insert of congruent dimensions. Attachment to the base is by an adhesive strip which forms a hinge.

Abstract: A method of making an electric conductor wherein a plurality of glass strands are coated with a thermally curable liquid dispersion of conductive particles and the strands are heated to thermally cure the liquid dispersion. The method includes grouping the wetted strands in a roving and winding the roving about rotating heated drums, which flattens the roving into a ribbon and cures the liquid dispersion on the strands. The conductive roving is spirally wrapped with a non-conductive strand into a cylindrical core and then encased in a semi-conductive overcoat.

Abstract: A device for forming lengths of adhesive tape into tubes including a mandrel having an axis and a multiplicity of radially outwardly projecting resilient bristles having tips defining at least the major portion of a periphery around the axis in the shape of a tube to be formed. The tape is wrapped around the periphery of the mandrel and the ends of the tape overlapped to form a tube having an axially extending seam. A ring is then pressed against one end of the formed tube to slide it axially off of the bristles and mandrel.