Abstract: An annular blower for attenuating fibers comprises an annular manifold and a plurality of slots positioned circumferentially around the blower for the discharge of attenuating gas from the manifold, where the slots have an aspect ratio within the range of from about 35 to about 70.

Abstract: A cobalt-base alloy, particularly suitable for the fabrication of glass spinners and containing up to about 1.2 weight percent tantalum is disclosed.

Abstract: A method and apparatus for producing a mat of continuous glass filaments at increased throughput while maintaining desirable tensile strength characteristics by means of an oscillatable, fluidic distribution system.

Abstract: A method and apparatus for producing a mat of continuous glass filaments at increased throughput while maintaining desirable tensile strength characteristics by means of a fluidic distribution system employing diagonally opposed Coanda effect surfaces.

Abstract: A method of facilitating the unwinding of a wound body of strand includes encompassing the body in a heat-shrinkable stretch membrane and heating the resulting composite to a temperature greater than the temperature at which the strand is to be wound.

Abstract: A method and apparatus for sealing a hole in the inner wall of a double wall heat exchanger in which cover means is positioned in biased relationship to the hole and a frame positioned in the opening through which the cover means is inserted against the hole.

Abstract: A method of depositing a coating consisting essentially of titanium dioxide from an organic solution onto glass in an effort to improve the modulus and temperature resistance of the glass.

Abstract: The wall construction includes elongated molded fibrous channels secured together in side-by-side relationship and pairs of structural fastening strips secured to the channels, each joint between two adjacent channels having a pair of the structural fastening strips extending along the joint respectively adjacent opposite ends of leg portions of the channels.

Abstract: Air nozzle assemblies are provided for stripping the release strips from a laminated pressure-sensitive adhesive strip construction applied to a jacket for pipe insulation.

Abstract: Apparatus for curing fibrous mineral insulation material comprises an oven, upper and lower conveyor belts for carrying the insulation through the oven, support means for supporting the belts, a supply plenum for directing curing gases through the belts and the insulation material, an exhaust plenum for receiving the curing gases, and a baffle positioned within the oven to define a curing gas flow path from the supply plenum through the belts and the insulation material to the exhaust plenum, the flow path being spaced apart from the support means to prevent contact between the curing gases and the support means.

Abstract: A glass heating method and apparatus, such as a glass melting furnace or a forehearth, utilizing a refractory lining and electrically energized heating electrodes. The refractory lining is an erosion resistant material, preferably a chromic oxide refractory, having an electrical resistivity which is less than the resistivity of the molten glass, preferably an E glass, which is being heated. To avoid short-circuiting through the low resistance refractory, the refractory interposed between electrodes of opposite polarity is cooled to a temperature less than the temperature of the molten glass and at which the resistivity of the refractory is materially increased. Where the electrodes of opposite polarity are carried by opposing side walls, the end and/or side walls of the apparatus are cooled. Where the electrodes are all carried by a single wall, that wall is cooled.

Abstract: A glass fiber attenuation apparatus and process wherein molten glass is supplied from a molten glass body to an orifice plate at substantially atmospheric pressure to prevent molten glass flow through an orifice at which attenuation has ceased, thus permitting continuation of the attenuation process despite breakouts at individual orifices. The preferred embodiment of the method includes the steps of cooling the orifice plate undersurface to a non-wetting temperature and delivering molten glass to the orifice plate at a pressure less than the internal, surface tension-generated pressure of any bead formed on the undersurface of the orifice plate upon attenuation cessation at that orifice.

Abstract: A size for glass fibers is disclosed, the size comprising an oxidized polyolefin, a polymeric film former and an organic acid, preferably terephthalic acid or isophthalic acid.

Abstract: A door and frame molded of glass wool and a binder and having polyester resin impregnated into outer surface portions.

Abstract: A chemically modified asphalt composition is provided which is especially adapted for use in the repair and maintenance of highways. The composition is a reaction product of a high oil asphalt, a vinyl aromatic monomer and a rubbery, or elastomeric, polymer.

Abstract: Improved chemically modified asphalts are provided of the type which is the reaction product of asphalt, a vinyl aromatic monomer and a rubbery polymer. The improved compositions are capable of impregnating glass fiber bundles and have increased elastic recovery rates, increased viscosity stability, less tack and lower viscosity. Such improved compositions are obtained by employing a styrene-butadiene thermoplastic rubber copolymer as a coreactant with the asphalt and vinyl aromatic monomer.

Abstract: A chemically modified asphalt composition is provided which is especially adapted for use in the repair and maintenance of highways. The composition is a reaction product of a high oil asphalt, a vinyl aromatic monomer and a rubbery, or elastomeric, polymer.

Abstract: A panel assembly for terminating a plurality of thermocouple leads is disclosed. The panel assembly has sufficient mass that it can stabilize at the temperature of the surrounding air. All thermocouple termination posts are of a common metal such as copper so that all subsequent leads can be copper and thereby reduce termination errors due to subsequent thermoelectric effects. A temperature measuring device is embedded in the mass of the panel assembly for measuring the temperature of the termination points of the thermocouple leads. Recorder jacks are provided so that an external recorder may record the outputs of the thermocouple.

Abstract: A method for simultaneous compensation of a plurality of thermocouple signals where the thermocouple leads are terminated to dissimilar metals without using individual ice junctions for compensation of each thermocouple signal is disclosed. The thermocouple leads are all terminated to individual connectors as reference junctions which are held at the same temperature by a block of metal which stabilizes thermally with its environment. The temperature of the metal block is measured by an integrated circuit temperature transducer which produces an analog electrical signal proportional to the temperature detected. This signal is digitized and a microprocessor calculates the temperature of the metal block which is placed on a first data bus. Additional microprocessors are connected to the individual thermocouple leads. These microprocessors convert the thermocouple signals into an uncorrected digital temperature.

Abstract: A glass fiber-forming feeder having a bottom wall having a network of internal passageways interconnecting the field of orifices extending therethrough, and a method for producing such bottom walls is disclosed.