Abstract: Process and apparatus for applying a flowable coating medium to a travelling web by a reverse applicator roll technique in which the peripheral velocity of the applicator roll (U) is maintained at less than 0.4 of the forward speed of the web, and the dynamic viscosity of the coating medium (.eta.) is selected in accordance with the relationshiph=k.eta..sup.0.5 U.sup.0.5,wherein k is from 0.01 to 100, such that a layer of coating medium of equilibrium thickness (h) not exceeding 5.0 mm is entrained on the surface of the applicator roll for transfer to the web. The technique avoids the use of a doctor blade to meter the amount of coating medium on the applicator roll, and is suitable for the high speed application of a heat sealable coating layer onto a polymeric packaging film. Coating quality can be improved by stabilizing the web downstream of the applicator roll.

Abstract: Winding apparatus for the manufacture of fiberglass pipe and other filament-wound, reinforced resinous products comprises a rotatable mandrel; a vat stationed adjacent the mandrel and adapted to contain a quantity of liquid, settable resin; and a reciprocating carriage assembly supporting the vat. The filamentous reinforcing material is guided across the top of an applicator roll rotatably mounted within the vat thereby impregnating the filaments with resin. The impregnated filaments then are squeegeed and guided onto the mandrel, the rotation of which pulls the filaments through the vat. As the carriage mounting the vat reciprocates, the filaments are wound on the mandrel in a predetermined pattern to produce the finished filament-wound, reinforced resinous product.

Abstract: A method for coating textile bases with a specified pattern of synthetic powder wherein the synthetic powder is applied to a water-cooled engraved roller and transferred to a textile base material while being under heat treatment for a substantial portion of the travel of the textile base along the application roller. Such heat treatment is provided by heat emitters external to the application roller thereby providing heating of the textile base and the powder through it.

Abstract: An apparatus for coating moving sheets with a contact adhesive, which apparatus includes rollers for forming a contact adhesive film and rollers for applying the film to a moving sheet, which application rollers include a cooling roller with an adhesive-rejecting envelope or sleeve, a processing roller, and a pivotal support for the pressing roller.

Abstract: Films having widths of up to one meter or more can be coated at high coating speeds of up to 400 meters per minute or more with coating compositions having viscosities reaching up to 400 centipoises or more by arranging first and second guide rollers, a coating roller and rotating smoothing rod such that the path of travel of the film during the coating procedure is a substantially circular path whose diameter is preferably about one meter. During the coating procedure, the tension of the film by the first and second guide rollers is regulated independently of the speed at which the film travels. The apparatus and process have applicability to a wide range of films and coating compositions.

Abstract: The invention is an improvement in an apparatus for developing sheets of diazotype copying material by the semi-dry process and includes at least two rotatable rolls being biased together with a gap between them for passage of the sheets of diazotype material, with an additional force being exerted on at least one of the rolls which force transfers a plane of deflection of one of the rolls to a position outside of a principal plane in which axes of the rolls are located in such a manner that a first line of intersection between the plane of deflection and the shell of the aforesaid one roll, starting from which line of intersection the deflection is directed toward the roll axis, extends in front of the gap, when viewed in the rotational direction of the roll, first guides to bring sheets of diazotype copying material into contact with the roll at a first transition line between the first line of intersection and the gap, and second guides to lift the sheets off of the roll behind the gap at a second transiti

Abstract: A developing apparatus for use in a photocopying system includes a rotatably mounted application roller, means for dispensing developer material onto the surface of the roller, a metering blade mounted for engagement with the surface of the roller for wiping the surface of the application roller to leave it lightly wetted with developer, and a pressure application means to apply pressure to a copy paper as it passes in contact with the surface of the roller. The pressure application means is preferably in the form of a curved pad which applies pressure over a substantial area of the application roller and remains in contact with the application roller even when the roller is stationary.

Abstract: A process and apparatus for the patterned deposition of powdered thermoplastics adhesive material on the outer surface of a textile or other porous-flexible surface form, wherein there is first insertion raked in a pattern of depressions formed in an engraved component an adhesive powder material and then on this powder a further adhesive powder material is insertion raked in the depressions, so that both the powder layers superposed one on the other are taken up by the surface form which is positioned on the engraved component.

Abstract: A novel inking method and apparatus particularly well suited for the re-inking of used fabric ribbons such as of the chain-printer type. The apparatus preferably contains means for moving a fabric ribbon through an inking station onto a take-up roll, means in advance of the inking station for adjusting the edge-alignment of the ribbon, embossed or gravure inking means for supplying ink directly to the ribbon without compression of the ribbon, illumination means to facilitate the inspection of the ribbon for flaws and for uniformity of ink, and shut-off means for stopping the movement of the ribbon at any desired position.

Abstract: Apparatus for joining at least two axially abutting rods of the cigarette industry comprises means for delivering the rods to a rolling drum, a rolling device mounted adjacent to the drum to roll the rods with respect to the drum, and means for applying a hot-melt adhesive to the rods to produce a bonding film which overlaps the adjacent ends of the rods and extends at least around a major part of the circumference of the rods.The adhesive may be applied by a nozzle directly to the rods, or may be applied initially to the drum as a film which is then picked up by the rods.

Abstract: The method and apparatus for applying a liquid to a movable web of moisture-absorbent material, such as toilet paper or other roll paper sheet material, includes providing a container for storing a quantity of the liquid to be applied to the web, causing the web and the container to be moved relative to one another to apply the liquid from the container to the web in a first pattern. Simultaneously therewith, the liquid is also applied to the web in a second pattern which is spaced transversely from the first pattern to enable the web to retain its structural strength as it becomes wet.

Abstract: Apparatus for the uniform treatment of thread with a treatment fluid during the winding of the thread on a cross-wound bobbin or the like driven at a constant rotational speed while the speed of the thread is increasing constantly, said apparatus comprising a treatment roller, the lower portion thereof dipping into a bath of the treatment fluid, and two thread guides. The first guide is stationary, the second is movable in a direction parallel to the axis of the treatment roller in response to the speed of the thread, the thread being stretched therebetween and lying against the periphery of the treatment roller. The roller, which is driven at a constant rotational speed, has a cylindrical first section and a second section comprised of a plurality of truncated cone surfaces; a plurality of radially disposed and axially extending small passages on the second section forming grooves having a depth of zero at the border of the cylindrical section and increasing over-proportionally to the groove length.

Abstract: A novel inking method and apparatus particularly well suited for the re-inking of used fabric ribbons such as of the chain-printer type. The apparatus preferably contains means for moving a fabric ribbon through an inking station onto a take-up roll, means in advance of the inking station for adjusting the edge-alignment of the ribbon, embossed or gravure inking means for supplying ink directly to the ribbon without compression of the ribbon, illumination means to facilitate the inspection of the ribbon for flaws and for uniformity of ink, and shut-off means for stopping the movement of the ribbon at any desired position.

Abstract: Sizing of a yarn sheet is practiced without direct immersion into a size bath through running pressure contact of same with a rotary sizing roller while the process is so automatically controlled that, at starting of the sizing operation, the drive for running of the yarn sheet starts after all the related working elements are registered at their operative positions and, at stopping of the operation, the elements are released from the registered operative positions after the yarn sheet has come to a complete stop.

Abstract: Apparatus for pivoting a tensioned web of material away from an adhesive applicator roller therefor comprises a guide roller for the web carried by first pivotal levers and a web tensioning bar extending parallel to the guide roller and carried by second pivotal levers so as to keep the web under tension when the first pivotal levers are swung to move the web past over the guide roller away from the applicator roller. Means are provided which are operative on pivoting of the first levers and which utilize the pivoting motion thereof for controlling pivoting movement of said second levers required to maintain or increase the tension in the web.

Abstract: A gluing machine employs substantially linear conveying motion and has easily installed change parts, which adapt the machine to handle thin paper or relatively heavy cardboard. A vacuum head with compound motion delivers a sheet of cardboard or paper from a vertical stack by lifting the leading edge and advancing it substantially horizontally between drive rolls which deliver the sheet under a glue roll. A glue spreader roll is mounted on eccentrics for adjusting its spacing from the glue roll. For relatively stiff sheets, a pair of removable presser rolls under the glue roll continuously flex the moving sheet into close contact with the glue roll and the sheet is delivered onto a dual compartment vacuum conveyor for positive ejection and accurately timed delivery to a downstream processing station. The presser rolls are replaced with a fixed bridge for handling flexible sheets, and the vacuum head is rotated while in motion by an air cylinder carried on the support arms for the vacuum head.

Abstract: An apparatus for reinking ribbons, including computer ribbons, comprising means for feeding the ribbon to be inked; means for collecting the reinked ribbon; drive means; guide means; inking means for applying a reinking composition to the ribbon so that it can be reused to print, including a reinking composition supply reservoir, a feed or ductor roller and an inking roller, wherein the positional relationship between the feed and inking roller determines the amount of reinking composition transferred from the reservoir to the ribbon; and cam means for adjusting the positional relationship between the feed and inking rollers.

Abstract: An apparatus for washing freshly spun artificial yarn during its movement relates to the finishing of yarn such as viscose yarn. By this apparatus, yarn is intermittently saturated with a finishing solution on that portion of a rotating roll which extends outside the finishing solution contained in a tank. Between the saturation zones, the yarn is spaced apart from the roll surface for diffusion and squeezing of yarn. In order to ensure the intermittent saturation of yarn with the finishing solution, the yarn is displaced in the direction opposite to the rotational direction of the roll. An additional roller engages with the driven roller displacing the yarn so as to form a squeezing pair therewith, and there is an additional tank having a scraper. The scraper is in permanent contact with the roll surface below the zone of feeding the yarn thereto and is adapted to remove the layer of finishing solution from the roll surface.

Abstract: Apparatus for applying a treatment medium to a continuously movable textile web and subsequently drying the web comprises a treatment housing wholly supported by and thermally insulated from a dryer housing so as to minimize greatly the space required for the successive treating and drying operations. The treating housing preferably contains means which are operable to enable the web selectively to be treated or not treated.

Abstract: Method and apparatus for evenly coating a moving web of material with a predetermined amount of a liquid and characterized by simplicity of design, uniformity of application of the liquid and accurate control of the amount of the liquid applied, as follows. Mechanisms are provided for supplying and feeding a web of material in a longitudinal path of travel at a predetermined speed. A coating roll is positioned for transverse rotating contact with one surface of the traveling web of material and includes a covering of soft, uniformly and highly absorbent material for receiving and uniformly absorbing the coating liquid and for transferring and uniformly coating the traveling web with the liquid. An open top pan is provided for continuously receiving the coating liquid therein. The coating roll rotates within the pan for contacting and continuously absorbing all of the coating liquid within the pan above the level of the coating roll.

Abstract: An apparatus for manufacturing a laminate having a width of at least 30 cm. by means of a solventless adhesive, wherein, in a first stage, means are provided for continuously supplying a solventless adhesive to a distributor means comprising a pre-dosing element and an elastic-surfaced rotating element in such a manner as to coat the surface of the elastic-surfaced rotating element with a layer of solventless adhesive having a thickness of from 5 to 50 microns, the layer then being substantially transferred to a moving film to be laminated, the circumferential speed of the elastic-surfaced rotating element and the speed of linear displacement of the film being in a ratio of from 1:10 to 1:50, so that the film receives a layer of solventless adhesive of a thickness of from 0.5 to 5 microns, and, in a second stage, means are provided for bonding in a known manner the film coated in this manner to another film to form a laminate.