Abstract: A nozzle is disclosed in which streams of fluid are discharged from an apertured chamber into a skirt. The skirt has vanes to facilitate stream-like non-turbulent flow of the fluid. The skirt walls are divergent to allow for expansion of the fluid.

Abstract: We have found that if we add a polyhydric phenolic compound such as resorcinol to monohydric phenolic resin/cement systems, we can shorten the gel time sufficiently to use the systems in producing walls. The walls generally are cylindrical and serve to confine a liquid. These systems are especially good for producing large diameter, continuous pipe.

Abstract: Improved roof insulation for vehicles is provided. The insulation includes a layer of glass fibers held by a binder, which layer is flexible and compressible. A non-woven sheet is adhered to the lower surface of the fibrous layer and thereby improves the handleability of the layer and retains particulate material and especially fibers in the layer when being installed in a vehicle. The non-woven sheet also adds a degree of stiffness to the fibrous layer to prevent excessive drape thereof when being installed overhead, and yet the flexibility of the layer is retained. The non-woven sheet also protects the fibrous layer from tearing during installation and preferably can be dyed, which is particularly important when perforate headliners are employed therebelow. A non-woven porous sheet also can be employed on the upper surface of the fibrous layer which further improves the handleability and dimensional stability thereof, and protects the fibrous layer from damage.

Abstract: A level-sensitive system responsive to the level of liquid in a container is provided. A level-sensitive device, e.g. a gauge or pressure switch, is connected by a line to a lower portion of the container. Gas, specifically air, is supplied to the line under pressure sufficient to enable the gas to pass slowly into the container and to bubble upwardly, thereby keeping the liquid out of the line and away from the level-sensitive device. The flow of the gas is sufficiently slow that it does not affect the operation of the level-sensitive device. A liquid such as water also can be supplied to the line under pressure to flow into the container. The quantity of the water is also maintained small enough so as not to affect the operation of the level-sensitive device. The water is effective to prevent growth of fungus or the like in the liquid of the container which otherwise can form adjacent the line leading into the container and block the line after a period of time.

Abstract: A method of and apparatus for fabricating an orificed wall for a feeder for flowing streams of filament forming material such as molten glass by punching an aperture through a plate from one side to the other and then permanently depressing the plate immediately adjacent the aperture at the other side to such an extent that any tendency to bow from the aperture forming operation is essentially negated.

Abstract: A reaction product between propoxylated aniline, formaldehyde and diethanol amine is disclosed. In another embodiment, aromatic compounds can be reacted with the propoxylated aniline in addition to the formaldehyde and diethanol amine. The resulting product can be reacted with an alkylene oxide to produce a polyol which can be employed in the production of polyurethane foams.

Abstract: A boron-free glass composition for use in fiber optics is disclosed. In the field of fiber optics, light is transmitted from one point to another by small diameter fibers. These fibers are composed of a central core surrounded by an outer cladding or sheath. The glass compositions of this invention can be used as the core glass or the sheath glass.

Abstract: A coating material applicator is provided which applies a coating material to fibers, more specifically filaments, in a uniform manner. The applicator, which has no moving parts, directs the coating material in a tortuous path from a supply inlet to a filament-coating bar which applies the coating material to the filaments passing thereby. The tortuous path preferably has at least one inverted U-shaped portion which helps separate air trapped in the coating material. The applicator preferably has at least three chambers with the coating material passing down through the first chamber, up through the second, and down through the third from which it exits to the coating bar. Fibrous material can be located in the first chamber, and also in the second, if desired, to help separate and collect the air from the coating material. A vent also can be located in the first chamber and in the second, too, particularly if that chamber also has fibrous material therein, to vent the air periodically.

Abstract: The surface characteristics, including shrink and gloss of molded thermosetting resin compounds, are improved by incorporating into the thermosetting resin a thermoplastic composition produced by the polymerization of a monomer with unsaturated elastomeric polymers.

Abstract: Arrangement for and methods of operating electrically heated submerged throats between glass melter and final conditioning zones are disclosed which enable the pull rate of glass to be reduced while maintaining temperature control and to be stopped without freezing the molten glass in the throat. High rates of heat loss in the throat region are compensated for with a high voltage power supply to electrodes positioned for Joule effect heating of the glass in the throat. Thermal adjustment at maximum pull rates is enhanced by the use of cooled electrodes in the throat as heat extractors with no electrical energy supplied. Low or zero pull rates can be tolerated without throat freeze-up by connecting additional voltage sources in series with the supply to the throat electrode.

Abstract: A composition for use in the treatment of glass fibers and glass fibers treated therewith, wherein the composition is formulated to include an organo silicon compound in the form of an epoxy silane blended with an organo silicon compound containing a beta-chloroalkoxy group. The glass fibers treated with the composition can be used in the reinforcement of thermosetting resins and elastomeric materials.

Abstract: A composite article and method for making the same where the exterior surface of glass particles are coated with a metal. The metal coated glass particles are reduced to smaller, particular form and glass fibers are added to the reduced metal coated glass particles. The particles and glass fibers are formed under pressure to a given shape and the resulting shape is sintered to form a permanently-shaped article.

Abstract: Apparatus is provided for packaging strips of flexible, compressible material, such as layers of glass fibers. The compressible strip is wound under compression into a roll by the apparatus to provide a compact package. The compressed package can then be held in that state by tapes or the like which are automatically fed into contact with a trailing end portion of the compressible strip as it is being rolled up. The packaging apparatus includes a generally horizontal conveyor which carries the strip along a generally horizontal path. An upright, back-up belt conveyor is positioned to intercept the strip in its path and to deflect the forward edge of the strip upwardly away from the path. An infeed or guide roll helps to guide the forward edge of the strip toward the upright conveyor and a compression or tuck roll helps to turn the forward edge back downwardly after it is directed upwardly by the belt conveyor and to cause the strip to begin to roll into a spiral package.

Abstract: Unique carcass constructions and tires containing same, the carcass featuring variant cord angles depending upon the location of the cord in the carcass, are disclosed herein together with novel sheet-like candidate materials for carcass plies and methods of making such sheet-like materials featuring these variant angles.

Abstract: Low pressure molding compounds comprising a thermosetting resin and a thermoplastic resin are gelled with calcium hydroxide within a specific concentration range to produce compounds moldable at low pressures.

Abstract: The disclosed conductor includes a core, having a plurality of conductive glass fibers, an overwrap of non-conductive glass strands wound under tension around the core and a semi-conductive overcoat, preferably of polytetrafluoroethylene having suspended therein conductive powders, and silica. The overwrap includes distinct windings, rather than a braid, which securely retains the fibers in a cylindrical core of uniform cross-section.

Abstract: The disclosure embraces a method of and apparatus for processing heat-softenable material, such as glass, involving treatment of a surface of a substrate or body at which the glass is present such as the surface of a glass stream feeder at the stream delivery region, the method and arrangement involving burning or combusting a combustible carbonaceous material in an environment at the stream delivery region under conditions yielding the formation and deposition of particles of carbon on the surface, the carbon promoting separation of the glass from the surface thereby minimizing or eliminating the tendency for the glass to flood the surface.

Abstract: We have developed molding compositions comprising a mixture of phenolic resin and hydrated cement. A minimum amount of hydration in the cement provides strength and cure enhancement to the phenolic resin. We think the hydrated cement acts as a processing aid to the phenolic resin because of surface activity.

Abstract: Glass fibers coated with a blend of a resorcinol-aldehyde resin, an elastomer and a combination of organo silicon compounds formed of (1) an amino-substituted organo silane and/or its hydrolysis product and an organo silicon compound containing at least one beta-haloalkoxy group formed by reaction of a halosilane, a monoepoxide and a diepoxide.

Abstract: Apparatus is provided for dispensing tape for wrapping around insulation in roll form to hold the insulation in a compressed state. Machines are now known for forming elongate strips of insulation into tightly-wrapped packages. As the last portions of the strips are being wound, tapes are applied around the outer surfaces to hold the strips in the compressed, packaged state. Vapor barriers or backing sheets are sometimes applied to the outer surfaces of the insulating strips prior to the application of the tapes, or the tapes can be applied directly to the outer surfaces of the strips. In the latter instance, at least two tapes are employed for each package of insulation. The tapes are supplied by dispensers which are located adjacent a supply conveyor that feeds the insulating strips into the packaging machine. The new dispensers are designed to be located at substantially any position across the conveyor and the dispensers can also be located close together.