Abstract: Apparatus for automatically spot gluing printed sheets on a folding machine. The apparatus comprises an applicator head, an internally defined cylinder interconnected with a source of fluid pressure, and a reciprocally displaceable piston disposed within the cylinder for selectively engaging to be glued. The piston includes a glue output orifice adapted to contact a printed sheet to be folded and glued in a folded condition. The orifice is in fluid flow communication with a glue input source. In a single action embodiment the apparatus includes a return spring for resetting the piston after each spot gluing operation, and in an alternative double action embodiment fluid pressure is utilized to automatically reset the piston at a preselected instant.The spot gluer is located immediately in front of a stop bar which serves to stop moving sheets and buckle them between folding rollers.

Abstract: Coating tubular plastics film by depositing on each surface of the lay-flat web a plurality of evenly spaced lines of coating material parallel with the length of the web, and using contrarotating rollers to spread the deposited lines, causing them to merge into a uniform coating.

Abstract: A method and apparatus for applying a coating composition onto a moving web especially a paper web, in which an excess of said coating composition is applied to said web. The web thereafter passes smoothing means to uniformly regulate the final thickness of the coating and simultaneously to remove the excess coating composition. This smoothing operation is performed under an adjustable partial vacuum. The removed excess coating composition is recirculated without being mixed with the coating composition within the application area and is mixed with fresh coating composition before reuse within the process.

Abstract: A fluid dispenser and a support shoe are mounted to bear on opposite sides of a box blank passing therebetween. A normally closed valve of a nozzle of the dispenser has means yieldably biasing the nozzle to a normal position to intercept a leading edge of a box blank to open the valve upon deflection of the nozzle. A predetermined longitudinally spaced-apart gap relationship of the nozzle and support shoe effects return of the nozzle to normal position and closing of the valve, in response to the nozzle biasing means, concurrently with a trailing edge of the box blank leaving the support shoe, to wipe the closed nozzle clean on a deflected trailing end portion of the box blank. Alternatively, the support shoe may be rockably mounted for movement to a retracted position providing clearance for deflection of the trailing end portion of the box blank by the nozzle biasing means.

Abstract: A machine, operable on a shoe assembly formed of a last having an upper mounted thereon and an insole located on its bottom, that applies cement in the corners between the side and heel portions of the upper margin and the peripheries of the corresponding portions of the insole prior to wiping the side and heel portions of the upper margin against the insole and attaching the wiped margin portions to the insole by means of the cement.

Abstract: A method and mechanism for applying a liquid coating to both sides of a traveling web including guiding the traveling web along a substantially vertical path through a coating station applying coating continuously across the width of the web hydraulically and in one form the web traveling vertically upward and the excess coating falling downwardly and being directed away from the web, applying a uniform smoothing and distributing pressure to the surface of the coating by pressing first and second opposed thin flexible smoothing blades having a smooth inner surface with sufficient pressure so that the blades bend at an arc and the arc is tangent to the surface of the web.

Abstract: A nozzle for applying adhesive or other liquid to a surface comprises a box-like member with a slot in one of its faces, and an internal partition separating first and second components in the box-like member. One or more projecting portions of one edge of the partition extend into the slot, while other portions of the partition's one edge are recessed to form a weir over which liquid may flow between the components. The slot, through which liquid passes for application to the surface, is thus an interrupted slot, applying a series of short lengths of liquid to the surface, which is of advantage in obtaining a clean separation of the nozzle and the surface after liquid application. The box-like member may be in two parts, one on each face of the partition, and these three members may be bolted together to allow easy replacement of the partition if a change of slot configuration is required.

Abstract: Method and apparatus for the surface coating and impregnation of the interstices of a moving porous web, and particularly method and apparatus for the production of elastomer-coated, bias-cut woven fabrics during a tentering operation. The coating apparatus disclosed consists of means for applying a layer of coating material sequentially to the lower and upper surfaces of the moving web to substantially penetrate the coating into the interstices of the web, while smoothing the surfaces to provide a uniform and controlled coating of desired thickness on the fabric.

Abstract: Stiffeners in the form of spaced, narrow bands or lines of flowable, quick-setting material are applied to one side of a moving paper web to be used as computer paper. The stiffeners are applied either immediately before or during the time the paper web is partially wrapped around a cylindrical drum so that the material will set to a solidified condition while it is on the drum to set up a molecular pattern in each stiffener line, causing the paper web to be inherently biased in one direction. Guide means is provided for directing the paper web onto and off the drum. The material may be applied by applicator guns or wheels as the paper web moves through a rotary printing press and as it moves toward a line hole punch apparatus, perforating means and a fan-folding mechanism.

Abstract: A device for applying adhesive to a moving web, comprises a nozzle against which the web is arranged to run and from which adhesive is delivered, and a closure member which is movable between a position in which it allows the web to run against the nozzle and a position in which it moves the web away from the nozzle and lies against the nozzle so as to stop the flow of adhesive from the nozzle.

Abstract: The production of organic fibers with inorganic cores is set forth. Inorganic, such as glass, fibers are attenuated from a bushing and then covered individually or in small groups with organic sheaths. With individual fibers, rows or orifices in a bottom of the bushing are staggered so as to equally space the filaments. The applicator for applying the organic sheaths has one groove for each of the individual fibers for applying the organic material and for maintaining the fibers separated therebelow. The applicator can be mounted in a manner such that it can be retracted from an operating position in engagement with the filaments when the bushing operation is stopped, raised to a position near the bushing bottom, and moved into engagement with the fibers again to automatically place one fiber in each groove when the bushing is restarted. The applicator is then moved down to the operating position again when the bushing is back in normal operation.

Abstract: A method and apparatus for coating thixotropic high viscosity liquid coating compositions on a moving web at a narrow coating in such a manner as to provide a flat coating surface. The apparatus is provided with at least two liquid discharge ports arranged side by side opposite to the moving web so that the liquids are discharged through the ports and the edge of the coating liquid streams meet on the web. The apparatus is further provided with an extrusion type hopper having two slide members of which the tip ends are in the form of a knife edge, the slide members being arranged so that the knife edges are directed inwardly toward each other, at least one partition plate interposed between the slide members so as to equally divide the distance between the internal surfaces of the slide members. The method of this invention is well suited for use in applying a magnetic recording stripe to a motion picture film.

Abstract: The invention relates to an apparatus for treating porous wrapping material for a smoking article, for example a cigarette filter. According to the invention, the porous material is provided, by coating with a film-forming substance, with an impervious region or regions positioned to coincide with a region or regions at which adhesive is to be applied, the said substance being dried or set before such adhesive is applied. Thus, a line or lines of the film-forming substance may be applied to the same face of the wrapping material as a line or lines of adhesive for sealing the wrap and/or anchoring filtering material thereto, namely to that face which will be on the inside of the wrap formed from the said material.

Abstract: A corner tool for applying mastic material to an external corner formed by two walls which come together at approximately 90.degree., said tool comprising a retainer for mastic material that defines a cavity open in two convergent and substantially perpendicular planes, including a pair of slotted screed plates that extend substantially perpendicular to each other and transverse relative to the external corner, and means for positioning the mastic retainer relative to the external corner to maintain the slotted plates in contact with the two walls forming the corner while positioning the cavity in open-spaced relationship to the walls.

Abstract: Method for coating a continuous moving strip of material with a liquid coating material such as a plastic or polymer material is disclosed and in which the moving strip to be coated is directed in contacting engagement with a curved peripheral surface on a fixed coating head disposed transverse to the direction of strip travel, with the coating material being supplied through a central passage in the coating head and outletting through a radial passage formed in one or more lands in the coating head, which lands are girded on opposite sides by grooves. The coating head is fixed such that the outlets in the lands desirably are located adjacent the point of last contact of the moving strip with the coating head so that a meniscus of material is established at said location and is in contact with both the land surface and strip to permit pickup of the coating material by the strip.

Abstract: The production of organic fibers with inorganic cores is set forth. Inorganic, such as glass, fibers are attenuated from a bushing and then covered individually or in small groups with organic sheaths. With individual fibers, rows or orifices in a bottom of the bushing are staggered so as to equally space the filaments. The applicator for applying the organic sheaths has one groove for each of the individual fibers for applying the organic material and for maintaining the fibers separated therebelow. The applicator can be mounted in a manner such that it can be retracted from an operating position in engagement with the filaments when the bushing operation is stopped, raised to a position near the bushing bottom, and moved into engagement with the fibers again to automatically place one fiber in each groove when the bushing is restarted. The applicator is then moved down to the operating position again when the bushing is back in normal operation.

Abstract: A device for applying a layer of a viscous substance upon a travelling belt, comprising a perforated spraying tube and a squeegee blade, said blade having a curved shape with its convex side turned in the direction of travel of the belt.

Abstract: An improved extrusion-slide coating hopper for multi-layer coating of a substrate is described. The improved extrusion-slide coating hopper includes an upturned generally horizontally directed lip, which lip extends at an obtuse angle from an inclined slide surface and toward the substrate to be coated. A coating composition may be made to flow down the inclined slide and then upon the generally horizontally directed lip before being introduced on top of an extruded bridge of coating composition. The bridge of coating composition spans a generally horizontal gap between the hopper and the upwardly moving substrate. The apparatus of the invention improves upon coating apparatus of the prior art by providing, when coating, increased bridge stability and minimization of the deleterious effects of particles that lodge at an edge of the hopper.

Abstract: A holder for a pair of reversible fluid dispensers comprises a prismatic body that is symmetrical about three mutually perpendicular axes. A holder and pair of dispensers can thus be assembled to serve as a fluid dispensing assembly for either the left or right margins of sheet material passed adjacent thereto in a plane to intercept and actuate the dispenser nozzles. As embodied in a hot glue dispenser, the holder body includes two sets of fluid passages and of heating element and heat sensor and control mounting cavities that are symmetrically disposed about the three axes. Each multiple dispenser assembly is supported by a bracket assembly that incorporates a means to adjust the dispenser assembly angularly relative to the direction of the materials being passed through the machine whereby to vary, as desired, the spacing between the pair of applicator nozzles.

Abstract: An improved coating apparatus of the kind wherein a coating hopper having a vertically inclined slide surface is provided, upon which one or more layers of a liquid coating composition(s) may be made to flow in a downwardly-inclined direction into a coating bead or bridge of coating solution which bridge spans a generally horizontal gap between an edge of the hopper and an upwardly moving substrate to be coated. In the apparatus of the invention, a coating composition(s) is made to flow over an upturned surface and toward the substrate, so that the coating composition(s) flows into the bridge of coating solution at an angle of lesser inclination to the horizontal than that of the slide surface. The apparatus of the invention improves upon coating apparatus of the prior art by providing, when coating, increased bead stability and minimizatin of the deleterious effects of particles that lodge at an edge of a coating apparatus.

Abstract: Erected cartons are fed downstream on a dead plate by the various flight bars of a flight bar conveyor system, and between upper and lower pairs of side guides which are adjustable both laterally to accommodate cartons of various widths. Plows associated with the side guides preposition the closure flaps of the cartons so that each of these flaps is received in a slot of an adhesive applying head so that bands or strips of adhesive are applied to these flaps. The adhesive applying heads are uniquely mounted in that they are conveniently prepositioned for accommodating the flaps when the side guides are adjusted to the width of the carton. Two such heads are pivotally mounted in a block provided on the longitudinal center line of the machine, with a link being provided between each adhesive applying head and the side guide structure.

Abstract: Erected cartons are fed downstream on a dead plate by the various flight bars of a flight bar conveyor system, and between upper and lower pairs of side guides which are adjustable both laterally to accommodate cartons of various widths. Plows associated with the side guides preposition the closure flaps of the cartons so that each of these flaps is received in a slot of an adhesive applying head so that bands or strips of adhesive are applied to these flaps. The adhesive applying heads are uniquely mounted in that they are conveniently prepositioned for accommodating the flaps when the side guides are adjusted to the width of the carton. Two such heads are pivotally mounted in a block provided on the longitudinal center line of the machine, with a link being provided between each adhesive applying head and the side guide structure.

Abstract: For applying adhesive to an insole, adhesive supplying tubes are provided which are independently yieldable upon being forced against the shoe part to which the adhesive is to be applied. This accommodates the shape of the shoe bottom and assists in applying the adhesive to various sizes of insoles.

Abstract: A machine that includes nozzles that move along and apply cement in the corners between the side and heel portions of an upper mounted on a last and the corresponding portions of an insole located on the last bottom and that also includes side wipers and heel wipers that respectively wipe the side and heel portions of the upper margin against the insole and attach the wiped margin portions to the insole by means of the cement.

Abstract: The pinstripe application system according to this invention provides apparatus and devices for the application of a plurality of mostly narrow stripes created by diversified liquids emanating from a large number of feeder chambers and patterned by one or more exchangeable pin strips which are perforated in accordance with the desired location of a multitude of distinct, or joining, or overlapping stripes produced by moving the substrate or carrier to be decorated at a direction of generally 90.degree. to the lateral extension of the applicator and having means to adjust pressure, angle, and flow characteristics in a manner to simplify and enhance this method of application, as well as locations and sequences for combination with one or more different type color application devices.

Abstract: A multi-port applicator for supplying bonding and sealing material(s), for instance to elongated channels and/or recesses, and to members for fitting within channels. The applicator comprises at least two heatable heads in tandem, the trailing head having an orifice arranged for depositing molten thermoplastic on the same or other adhesive material supplied by a preceding or leading head orifice. Opposite sides of the heads are of configuration complemental to the walls defining the space to be filled, for example the peripheral channel of a double glazed unit. The trailing head may include a smoothing follower to shape the deposited material while it is still soft and insure a substantially uniform depth of total deposit.

Abstract: An arrangement for applying adhesive to insoles of shoes in a lasting operation comprising a U-shaped applicator having passages therethrough for extruding cement upon the insole. An array of criss-crossed channels drain surplus adhesive from the extrusion arrangement. The extrusion arrangement includes V-shaped grooves which apply the adhesive to the insole.

Abstract: Surface-treated paper in the form of a continuous web is made by first roughening a base paper which serves as a starting material on the sides to be treated. The roughened web is then passed over and in direct contact with a discharge slot from a container that extends across the web and through which the desired treatment liquid is flowed onto the surface of the web, and the surface-treated paper is then dried and finally reeled.

Abstract: System and application head for depositing adhesives on surfaces to be bonded. The system includes a supply of adhesive and a pump for urging the adhesive through an outlet line leading from the adhesive supply. A regulator is situated in the adhesive outlet line to provide a substantially constant pressure in the adhesive flow to the downstream system components. An adhesive valve controls delivery of the adhesive to the application head. Means are provided for sensing when the surface to be bonded is in position adjacent to the application head to actuate a timer for controlling the valve whereby adhesive flows to the head for a predetermined period of time. Reverse pressure is then imposed to withdraw adhesive from the application head. The adhesive is deposited on the surface to be bonded during the time when the application head and the surface to be bonded are in cooperation. The head includes internal passages for directing adhesive therethrough to be applied to the surfaces to be bonded.

Abstract: A shoe machine having nozzles for applying adhesive progressively to the margin of a shoe bottom, in which the nozzles are moved heightwise to engage a guide of the nozzle with the edge of the shoe bottom maneuvered by an arrangement of piston and cylinder members, and a sensing device associated with a stop mechanism for control and guidance to enable the nozzles to follow the marginal contour of the shoe bottom to apply adhesive thereto, and thence to return the nozzles to their start position to begin another cycle.

Abstract: A method and apparatus for applying a coating composition onto a web, in which the coating composition is subjected to a first general smoothing during the passage of the web between relatively stiff surfaces of a primary coating member and the final smoothing of the coating is effected in a nip formed between relatively flexible flat surfaces of a secondary coating member. Said coating members being spaced from each other in the running direction of the web. The web is both stabilised and pre-coated by the primary coating member, whereas the coating is finalised by the secondary coating member.