Abstract: Photographic elements, multicolor filters and receivers are disclosed having supports providing microvessels for materials such as radiation-sensitive materials, imaging materials, mordants, silver precipitating agents and materials which are useful in conjunction with these materials. Processes of forming microvessels and introducing materials therein are also disclosed. Processes of forming images are disclosed employing microvessel containing elements. Image transfer processes are disclosed for producing one or a combination of silver and multicolor subtractive primary images alone or in combination with multicolor additive primary images.

Abstract: In the forming of microcellular arrays, such as those useful in photography, a closure is positioned to overlie a plurality of microcells forming a planar array. The closure is selectively removed from one set of micro- cells forming an interlaid pattern with a second set of microcells so that the contents of the first set of micro- cells can be changed without concurrently changing the contents of the second set of microcells.

Abstract: The resistance of a honeycombed structure to damage from asymmetric thermal shock occurring across its surface during use and formed with cells having anisotropic Young's moduli in the planes perpendicular the central longitudinal axis of each cell can be improved by varying the orientation of the anisotropic cells with respect to one another so as to minimize the number of such cells being oriented with an axis of maximum Young's moduli aligned with the direction of either the maximum temperature difference or maximum localized temperature gradient occurring across the cell.

Abstract: Honeycomb noise attenuation sandwich panels and method of construction having a cellular core positioned between and bonded to two facing sheets. One facing sheet is perforated and the other imperforate. A thin sheet of porous fibrous felt or fabric is bonded to the perforated sheet. The core cells communicate with the atmosphere through the perforated sheet and the pores of the fibrous sheet.

Abstract: A cartridge for a catalytic ozone converter comprising an aluminum honeycomb core, a tubular metal shell surrounding the core and affixed thereto, metal rib support members fastened to the shell and to the honeycomb core, and a catalytic coating deposited upon the cell walls of the honeycomb core.

Abstract: A collapsible structure comprises a separating structure of poor wet strength sandwiched between two sheets of material, at least one of which is of such a nature as to allow the passage of moisture. The invention also includes a method of building using such a structure.

Abstract: A ceramic honeycomb structure having cells which deform in a preinduced manner under stress is disclosed. Each of the cells is formed by interconnected convexly and concavely curved partitions, the cross-sectional profile of each of the curved partitions preferably being a half sine wave. Thermally induced stresses exerted in planes normal to the honeycomb axis will cause the concave partitions to bow inwardly and the convex partitions to bow outwardly, whereby the corner angles between partitions will remain generally equal to their original values.

Abstract: A double degree acoustic attenuation sandwich panel having a plurality of stacked components adhered together to form a unitary sandwich structure. The structure comprising an impervious facing of thin sheet material, a first honeycomb core with end wise directed cells, a first perforate facing of thin sheet material, a first thin layer of porous fibrous material, a second honeycomb core with end wise directed cells, a second perforate facing of thin sheet material and a second layer of porous fibrous material. The resulting sandwich panel has a predetermined flow through resistance between the outer surface of the first and second layers of porous fibrous material and the cells of the first and second honeycomb cores. The cell of the first and second honeycomb cores may be of equal or different volume cells and may be constructed of similar or dissimilar materials.

Abstract: A sound insulating building element or structural member includes a plurality of parallel sheet elements of which a first, inner, thick element is stiff and has a plurality of internal cavities, a second, inner, stiff element is substantially pervious to air and connected to one main surface of the first, inner element, and an outer, impervious element is arranged at a small distance from the second, inner element in such a manner that substantially the entire outer element can oscillate freely in relation to the second, inner element, the other main surface of the first, inner element being connected to a sheet material having an E-modulus greater than 10.sup.9 and which can be substantially impervious to air, or similar to the second, inner element, can be pervious to air and be connected over an air gap to an outer substantially impervious sheet element.

Abstract: A diaphragm for electro-acoustic transducer comprising a core member of honeycomb structure made of either a thin film of a metal or a high molecular material, and a skin member bonded to at least one side of this honeycomb core structure and being prepared by the use of aromatic polyamide fibers having a high tensile strength, a high Young's modulus and a high Young's modulus-to-weight ratio and reinforced by a thermo-setting resin. Such diaphragm has a high Young's modulus, an improved mechanical strength and a wide frequency range of piston motion, and presents reduced distortion throughout a wide frequency range, and has a superior transition characteristic, whereby a good sound reproduction characteristic is obtained.

Abstract: Method of making attenuation sandwich panels having a cellular core positioned between and bonded to an imperforate facing sheet on one surface thereof and a perforate sheet with an outer layer of porous fabric material adhered to the other surface. The combined perforate facing sheet and porous fibrous material have a predetermined open surface area prior to its adherence to the cellular core. A coating of adhesive is applied to either the facing sheets or to the faying surface of the cellular core. The sheets are then properly positioned with respect to the cellular core. The porous fabric surface of the combined perforate sheet and porous fibrous material is positioned against a perforated plate. The opposite surface of the perforated plate is positioned against a bonding tool that has a plurality of longitudinal grooves on its perforated plate adjacent surface.

Abstract: Method of fabricating attenuation sandwich panels having a central cellular core positioned between and bonded to an imperforate facing sheet on one surface thereof and a perforate facing sheet with an outer layer of porous fibrous material adhered to the other surface. The combined perforate sheet and porous fibrous material have a predetermined open surface area prior to attenuation panel fabrication. The perforation exposed surface of the combined perforate sheet and porous fibrous material is covered with a maskant material which covers the surface only. The porous fibrous surface is then saturated with a liquidous anti-wetting solution which coats substantially all of the fibers. The solution is allowed to dry and the maskant is then removed from the opposite surface. The components making up the panel are then assembled and bonded together to form the attenuation panel.

Abstract: A ceramic honeycomb composite structure adapted to be used as a catalyst support comprises a ceramic honeycomb body and ceramic layers integrally provided thereon having surfaces including therein microscopic holes, a sum of volumes of the holes 5 microns or more being at least 0.1 cm.sup.3 /g to ensure a sufficient catalyst-supporting property and achieve a high mechanical strength of the structure. On the layers of the structure are provided active material layers onto which a catalytic component is applied to enable it to be used as a catalyst. A ceramic material is extruded through a die to form the ceramic honeycomb body to which is applied ceramic grains and then the body with the grains is dried and sintered to complete the composite structure.

Abstract: A group of enclosures for nursing and replanting plants is disclosed comprising several parallel rows of enclosures wherein each two adjoining rows of enclosures have a common wall construction. This wall permits the flow of nutrients and water through the wall and thus makes it possible to control and guide the growth of the roots.

Abstract: A device for mitigating the splashing of droplets of molten metal during the pouring of same into a mould comprises a strip or strips of material which form a system of polygonal cells. The device is for vertical location with the strips edgewise in the base of a mould and fulfills the function of either a splash-guard when casting direct or a float when bottom-casting.

Abstract: Disclosed is a cellular core structural panel, comprising a plurality of bonded stacked segments, each segment being formed from a sheet characterized by a top portion having repeating peaks and troughs and sidewalls integral with the troughs. The cut-to-length segments are successively aligned so that each peak contacts the trough of the segment above it to form a cellular core panel with integral face sheets formed from the sidewalls of each segment.

Abstract: A process for producing a honeycomb of synthetic-resin material for use as the collector electrode of an electrostatic precipitator comprises assembling the honeycomb from plate strips having the cross section of sheet piling and made by hot molding from unsaturated polyester resins, glass fibers and nonwoven external covering fabrics of synthetic fiber. The honeycomb structure, which has a hexagonal ducts, is then provided with a shell of glass fiber and polyester resin by a winding operation. Conductive pigments, such as carbon and metal oxides, and flame-inhibiting additives can be incorporated in the unsaturated polyester resin.

Abstract: A composite structure includes a grid having filaments built up in a stacked arrangement in rows with the rows crossing at nodes where the filaments of the crossing rows are interlaced. None of the filaments passes directly through any node, but instead the filaments of each row pass to the sides of a central area in the node with half being on one side of the central area and half being on the other side. The filament lay-up around the nodes is such that only two filaments cross at any one location thus equalizing filament build-up at the nodes and webs. The stacked array of filaments is impregnated with a resin, which may be applied to the filaments before or after the lay-up, and the resin upon being cured forms a hard matrix in which the filaments are embedded. Preferably, the rows of filaments assume three different orientations, with those orientations being at 60.degree. angles with respect to each other.

Abstract: A fiber-reinforced plastic structure is obtained by weaving fibers in one direction about one or more spacing members located angularly to the fibers. The fibers may be either warp or woof stands, the spacing member serving as woof when the fibers from warp strands, and as warp when the fibers form woof strands. The removal of the spacing member leaves relatively large open channels forming, in effect, a multi-wall hollow structure. The resultant structure may be partially or completely treated with a plastic resin system prior to or after the removal of some or all of the members. The solidified resin reinforced structure may be filled with a foam-in-place plastic, and it may be stacked in layers to provide additional thickness with reinforcing fibers running in different directions for additional strength. Some fibers may extend from one ply into an adjacent ply or into more remote plies.

Abstract: A plurality of shielded wires are held bundled and electrically interconnected at their braided-shield exteriors by a compacted metallic thin-wall honeycomb member whose collapsed cell walls encircle the wires individually. The honeycomb wrap around the wire bundle is encircled by a heat-shrunk sleeve of plastic tubing, and the collapsed cell walls are held electrically joined to the braided shields by conductive adhesive.

Abstract: A mastic composition formed of a substantially homogeneous imporous mixture of a predetermined volume of low-density expanded closed-cell synthetic resin beads and a slurry prepared from calcined gypsum and water wherein the interstitial volume of the expanded beads is not substantially less than the volume of slurry. The substantially homogeneous mixture is self-adhering as a thick layer on an inverted smooth surface and yet separable therefrom as an integral layer, the mastic composition setting to a hard, strong, dimensionally stable, heat- and sound-retardant material. Methods of mixing mastic compositions, and composite structural panels utilizing mastic compositions as well as the methods and apparatus for forming such panels are also disclosed.

Abstract: A core having a repetitive pattern for ribbing comprising triangles and hexagons where each side of any given hexagon is extended pinwheel fashion toward the appropriate side extensions of each of the six adjoining hexagons, all of the hexagons having sides extending to form pinwheels having the same sense, i.e., clockwise or counterclockwise. The triangles are defined by the extensions and are located between the hexagons. Panels using this core are stiff about all axes and do not have an angle of inherent weakness. The core may be stamped, rolled or vacuum-formed out of many materials including paper, cardboard, sheets of various metals and reinforced or thermosetting plastic.

Abstract: A flexible honeycomb structure formable into a non-planar contour comprising a cellular web of thin sheet material is disclosed. The cells in the web each have a cross section comprising three substantially congruent segments equally angularly disposed about a common center. Each such segment includes a non-linear portion intermediate to its ends, and is preferably in the shape of four contiguous sides of a hexagonal configuration for easy nesting of the cells. The present invention also provides alternate methods for forming the flexible honeycomb structure.

Abstract: Paper honeycomb cushioning pads having the ends thereof, which are normal the glue lines that adhere the sheets of paper forming the honeycomb together, sealed with a paper tape cap or the like adhered to the paper honeycomb. This prevents or minimizes blowouts at the ends of the pads. The resulting paper honeycomb cushioning pads have appreciably higher and more uniform crushing strengths that similar paper honeycomb cushioning pads produced in accordance with the prior art in which the ends are not sealed.

Abstract: A radiant heater of panel form comprises an electric resistance heater sandwiched between a non-conductive flat front panel and a thermal insulator in the form of an open-celled honeycomb panel having closed front and rear faces. An electrically non-conductive rear panel is bonded to the rear face of the honeycomb panel. The front panel is selected for maximum emission at temperatures below 200.degree.F. The interior of the rear face of the honeycomb panel is provided with a heat reflecting metallic foil layer which acts as a directional heat reflector. The over temperature protection device for the panel heater is positioned entirely within the honeycomb panel between the front and rear faces thereof.

Abstract: Lightweight, porous, compliant structural members comprising an assemblage of metallic strips disposed in side-by-side relationship with the edges of the strips at opposite sides of the assemblage. There are interstices between the strips, and the edges of the strips are fixed relative to each other on at least one side of the assemblage to maintain the strips in the proper relationship.