Abstract: A web or structure is formed by feeding separate supplies of fibrous material into contact with two separate lickerins that are parallel to each other and rotated toward each other. The fibers from the two lickerins pass through a mixing zone and are accumulated on a moving conveying screen that is moved parallel to the axes of the lickerins. Segmented baffle plates may be inserted into the mixing zone to control the lateral or cross-sectional composition of a web formed by the fibers accumulated on the screen. A segmented feed may be used to advantageously deliver different fiber materials at different rates to each lickerin. Radially layered composite web structures having circular cross-sections may be formed with the same apparatus by forming the conveying screen into a U-shape and selectively controlling the air flow through the screen.

Abstract: An apparatus for forming a non-woven pad consisting of fibrous material in which highly moisture-absorbent particles are intermixed with the fibrous material throughout a predetermined portion of the thickness of the non-woven pad. The non-woven pad is formed atop a conveyor moving through a chamber which has a duct connected to a source of vacuum operable to draw fibrous material injected into the chamber onto the conveyor. A spray gun or an extension thereof is positioned within the chamber relative to the fibrous material atop the conveyor, and is operated to discharge moisture-absorbent material at a predetermined velocity, such that the moisture-absorbent material is intermixed with the fibrous material throughout preferably a center layer of the thickness of the non-woven pad while forming boundary layers on either side of the center layer which are substantially free of moisture-absorbent material.

Abstract: A distinctive apparatus for forming an absorbent body includes a forming chamber, and a fiber delivering mechanism for providing a flow of fibrous material within the forming chamber. A forming layer, which is located in the forming chamber and is movable therein, receives deposit of the fibrous material thereon. A conduit mechanism supplied a flow of dispersed bodies of high-absorbency material, which enter the forming chambers and intermix with the flow of fibrous material thereon. A regulating mechanism controls a velocity of the flow of high-absorbency material into the flow of fibrous material to thereby form a selected distribution of high-absorbency material within the fibrous material deposited onto the forming layer.

Abstract: A web or structure is formed by feeding separate supplies of fibrous material into contact with two separate lickerins that are parallel to each other and rotated toward each other. The fibers from the two lickerins pass through a mixing zone and are accumulated on a moving conveying screen that is moved parallel to the axes of the lickerins. Segmented baffle plates may be inserted into the mixing zone to control the lateral or cross-sectional composition of a web formed by the fibers accumulated on the screen. A segmented feed may be used to advantageously deliver different fiber materials at different rates to each lickerin. Radially layered composite web structures having circular cross-sections may be formed with the same apparatus by forming the conveying screen into a U-shape and selectively controlling the air flow through the screen.

Abstract: A pad is formed by feeding separate supplies of fibrous material into contact with two separate lickerins that are parallel to each other and rotated toward each other. The fibers from the two lickerins pass through a mixing zone and are accumulated in pocket molds moving on a conveying screen that is moved parallel to the axes of the lickerins. A baffle plate may be inserted into the mixing zone and acts to control the lateral or cross-sectional composition of a web formed by the fibers accumulated in the molds. When different fibrous materials are fed to the lickerin along their length, the vertical composition of the web is altered. Because of the pocket molds the pads are formed as individually shaped products.

Abstract: Apparatus for and methods of forming, from a single column of fibers, an airlaid fibrous web having a multiplicity of components.

Abstract: Apparatus for and methods of forming airlaid fibrous webs having a multiplicity of layers and/or discrete particles of absorbent gelling material dispersed through at least a portion of the web. The apparatus is of the type which includes a laydown drum having a foraminous forming element, a primary vacuum chamber, and a dusting layer vacuum chamber; a primary hood; and a dusting layer hood. The dusting layer of fibers formed on the laydown drum acts to block the passage of particles or fibers entrained in a first fiber stream which is airlaid over the dusting layer so as to minimize equipment plugging problems and the loss of particles or fibers through the foraminous forming element. The primary vacuum chamber of the laydown drum preferably spans the primary hood and a portion of the dusting layer hood so that the dusting layer is not sheared off, damaged, or destroyed as the laydown drum rotates to the position where the first fiber stream is deposited over the dusting layer.

Abstract: An apparatus permitting formation of a flanged product with the wider flanged portion in engagement with a foraminous transporting device. The apparatus uses a mold-like former having a narrower or smaller portion separated from the foraminous surface by a wider flange forming portion. The flange forming portion is adjacent to the foraminous surface and is separated from the foraminous surface after pad formation leaving the formed pad behind.

Abstract: A process is provided for manufacturing blanks comprising the production of a batch of fiber-reinforced synthetic resin compound, the production of a piece of fiber mat, depositing the batch of compound onto the piece of fiber mat, and conveying them together into a press for molding them together. In such a process, the initial step of producing the fiber-reinforced synthetic resin compounds and in producing the fiber mat is the production of a running length of fiber, which is then either cut and combined with resin compounds for the production of the noted batches, or placed on a conveyor and combined with additional compound; the process includes operating the fiber producing apparatus and delivering the fibers produced to a cutting means of the equipment for producing the fiber-reinforced synthetic resin compounds for a first period of time and then delivering the fiber to the conveyor for the production of a fiber mat for a second period of time.

Abstract: Apparatus and method for forming an integral laid fibrous web from multiple fiberizable components, characterized by generally discrete homogeneous compositional zones therein. The system comprises a housing having in its outer surface (i) inlet slot(s) for introduction of fiberizable materials into the housing and (ii) a discharge slot generally laterally coextensive with and translationally spaced from the inlet slot(s), for discharge of fiberized materials from the housing. A translatable body is positioned in the housing for translation therein, having a plurality of blades on its outer surface. The outer surface of the translatable body and the housing have a space therebetween wherein the blades travel during translation of the translatable body. First and second fiberizable components are fed to inlet slot(s) wherein the respective fiberizable components are at least partially laterally isolate relative to each other during the feeding.

Abstract: Apparatus for and methods of providing a multiplicity of streams of air-entrained fibers. The apparatus is of the type which includes a splitting member having multiple ports disposed in and along the surface of the splitting member; a first conduit duct in communication with a first port for directing a column of air past a first port to cause a portion of the column of fibers to split off and be drawn into the first conduit duct; and a second conduit duct in communication with a second port for directing a column of air past a second port to cause a second portion of the column of fibers to split off and be drawn into the second conduit duct.

Abstract: Apparatus for and methods of forming, from a single column of fibers, an airlaid fibrous web having a multiplicity of components.

Abstract: The invention relates to a method and an apparatus for producing layers of dry fibres and/or particles on a forming surface pervious to air. According to the invention, the material is distributed in air and passed to a forming unit where a turbulence with high intensity is effected in that air is injected through separate nozzles.

Abstract: There is provided an apparatus for the manufacture of absorption pads for sorbing body fluid which is composed of two substantially identical so-called flake applicators each including a vacuum cylinder having shaped recesses which are so-called flake wheels. A first component layer of the absorption pad is produced on the first flake wheel and a second component layer is produced on the second flake wheel. The component layers produced on the first flake wheel are applied to the component layers produced on the second flake wheel by means of a transfer roll. A second transfer roll lifts the finished absorption pad from the second flake wheel and delivers the absorption pad by means of a vacuum belt to a machine for further processing.

Abstract: Apparatus for making a low density fibrous mat for use as a self-contained support system to enhance the growth and probability of survival of an established seedling or a viable seed which has at least two adjoining layers of lignocellulose fibers bonded together by an adhesive of the type weakened by exposure to an outdoor environment. The apparatus is characterized by a pneumatic fiber conveying and depositing means in which the pneumatic conveyor is charged by rotatable tined shafts above a screw-conveyor and a following belt conveyor from which the fibers are drawn into the pneumatic conveying system for eventual deposition on a continuous vacuum screen.

Abstract: An arrangement for making a multi-layer particle board having several layers of a pressed fleece with two outer cover layers of lignocellulose-containing slender oriented particles mixed with binder material. The particles are strewn to form a lower layer onto the fleece carrier, while they are simultaneously oriented. A middle layer is applied onto the lower cover layer, and an upper cover layer is strewn onto the middle layer under orientation of the particles. At least a part of the slender particles for the cover layers strewn prior to orientation in the opposite direction relative to the transport direction of the fleece carrier, so that in the region of the cover layer facing away from the center layer, the length of the slender particles increases with the distance from the center layer.

Abstract: An apparatus for making video discs by moulding from an engraved master which includes depositing on one edge of the master an elongated fillet of a curable resin; photopolymerizable or thermosettable and spreading gradually the resin between the master and a flexible film of a substrate which is applied by means of a pressure roller, the resin being then cured as required by ultra-violet or infrared radiation through the film. The apparatus may also include a mechanisms for piercing the central hole and cutting out the disc. The formation of a succession of discs on the same film may be automatically obtained, the film advancing step by step between each moulding and/or cutting out operation.

Abstract: Vertically displaceable green sheet support fixtures are borne by respective horizontally movable carriages traveling on common rails between respective dual loading stations and a common unloading station, through separate intermediate screening stations, with the carriages movable in opposite directions and out of phase stationwise. The carriages have fixedly coupled thereto, horizontally movable trailers which bear trays of stacked green sheets for selective transfer of the uppermost green sheet to a loading head at the loading station while the carriage borne fixture itself is at a screening station for paste screening of a prior transferred green sheet. Masks employed in screen printing at the screening station are removed from the screening station console and placed in a cleaning chamber for solvent removal of residual screening paste and are air dried prior to return to the screening station console.

Abstract: The apparatus described is designed to distribute particles of lignocellulosic material falling by gravity uniformly over the inlet area of an electrostatic orientation unit. The particles are metered onto a conveyor belt which discharges an even flow of particles between a pair of contrarotating squirrel-cage rolls whose direction of rotation is such that one part of the flow of particles passes between the rolls and two other parts of the flow are deflected outwardly from the contrarotating rolls. The three portions of the particle flow from the contrarotating rolls are directed respectively to larger squirrel-cage distribution rolls positioned within distribution chambers beneath the contrarotating rolls for even distribution. Various vanes and deflectors are provided to direct the flow of particles within the apparatus.

Abstract: Apparatus for the deposition of a uniform web of dry wood pulp fibers on a forming wire in combination with melt blowing die means operable to deposit melt blown fibers on the web of dry fibers to strengthen the web. Means for depositing the webs comprise serially disposed sets of fiber distributors, and the die means is disposed between the sets of fiber distributors so that the melt blown fibers are deposited as separate layers on the finished web.

Abstract: A horizontally movable slide bears a two section, continuously extending horizontally inclined, steep and shallow sloped cam slot controlling the vertical rise and fall of a cam follower driven support fixture for supporting a ceramic green sheet in underlying contact with a stencil mask in an automatic MLC screening machine. An apertured positioning flag moves horizontally with the slide and past a vertical height digital position encoder assembly and a mask separate encoder assembly. The positioning encoder assembly provides an electrical signal for controlling an actuator mechanism causing slide movement, indicative of the desired final positioning height of the green sheet relative to the mask when the fixture is moving towards the mask.

Abstract: A continuous in-line method for forming an airlaid fibrous fluff web adjacent the uppermost and lowermost surfaces of a substantially planar internal reinforcing ply having substantially the same width as said fibrous web, said ply being substantially impervious to the passage of fibers from one surface thereof to the other, in a continuous fiber deposition zone is disclosed. In a preferred embodiment, a unique ply folding board is employed to permit continuous formation of an airfelt web having a reinforcing ply comprised of wet strength tissue paper located approximately mid-way between its uppermost and lowermost surfaces. Two adjacent vacuum chambers are preferably employed in the continuous forming zone to compensate for the increased airflow restriction encountered when forming the uppermost fibrous web portion over the reinforcing ply and the lowermost fibrous web portion.

Abstract: A stratified layer, for the manufacture of sheets, is formed from finely divided particles of material exhibiting a size distribution such as chips, fibers or the like, especially for the manufacture of wood chip panels, by forming a stratified mat on a substantially horizontal advancing surface by spraying particles of the material thereon, in such a manner that the finest particles are at at least one surface of the mat, through imparting a motion parallel to the direction of advance of the surface to the particles which are falling, causing the motion of individual particles to differ depending on the coarseness thereof so that different particles follow different parabolic trajectories and by collecting and removing particles which fall at least approximately vertically during said spraying.

Abstract: A continuous in-line method for forming an airlaid fibrous fluff web adjacent the uppermost and lowermost surfaces of a substantially planar internal reinforcing ply having substantially the same width as said fibrous web, said ply being substantially impervious to the passage of fibers from one surface thereof to the other, in a continuous fiber deposition zone is disclosed. In a preferred embodiment, a unique ply folding board is employed to permit continuous formation of an airfelt web having a reinforcing ply comprised of wet strength tissue paper located approximately mid-way between its uppermost and lowermost surfaces. Two adjacent vacuum chambers are preferably employed in the continuous forming zone to compensate for the increased airflow restriction encountered when forming the uppermost fibrous web portion over the reinforcing ply and the lowermost fibrous web position.

Abstract: Apparatus for the production of a middle layer of chipboards or the like and/or for the manufacture of chipboards formed only from middle layer material includes at least one spreading station associated with a spreading chamber arranged above a moving support for the reception of a chip layer or the like, the entire fine or coarse materials serving for the formation of a type of middle layer being fed by at least one metering tank to the support. The apparatus is further characterized in that at least one inclined screen which can be reciprocated in an essentially horizontal direction is disposed underneath the delivery point of the metering tank and a spreading roll is disposed underneath the lower edge of the screen in parallel to the screen edge, the roll serving for feeding the coarser material to the space lying beneath the screen.

Abstract: A structure defining an upwardly opening tray is provided and initially filled with a hardenable mixture compactable to at least a reasonable degree and a grid is thereafter introduced into the tray and depressed downwardly into the hardenable mixture to a level spaced above the bottom of the tray and with upper portions of the grid projecting above the mixture. A second hardenable mixture is thereafter introduced into the tray within the openings formed by the grid and on top of the first mixture to a level substantially flush with the upper surfaces of the grid. A male die including coplanar spaced die members snugly receivable within the voids or spaces defined by the grid is positioned with the spaced die members in registry with the openings or spaces defined by the grid and forced into the spaces or openings so as to compress both mixtures within the tray.

Abstract: An apparatus for forming a multi-ply sheet of paper in which a first web of cellulosic fibers is dry formed and consolidated, a second web of cellulosic fibers is separately dry formed and consolidated, and the two thus consolidated webs are combined into a single multi-ply sheet of paper or paperboard.

Abstract: An apparatus for printing a paste pattern on a ceramic green sheet having a loading station, a printing station, a stencil mask at the printing station, a carrier for supporting a green sheet, a means to align a green sheet in a given reference position on the carrier, a means to move the carrier horizontally from the loading station to a position beneath the printing station and vertically to a position to be printed beneath the stencil mask, and back to the loading station in the reverse movement order, extruding means at the printing station to print a pattern of paste material through the stencil mask on the surface of a green sheet.

Abstract: The apparatus consists of a drum whose circumferential surface coming in contact with the cable surface is provided with grooves corresponding to the marks to be formed. With each turn of the drum, the grooves are filled with colored plastic powder which, when coming in contact with the hot cable jacket, is sintered into the mark and fuses with the cable jacket.