Abstract: Steel reinforced tire fabrics are cut with long rigid bar blades, circular disc blades and disc and anvil blades. All of these blades may have an open relatively deep slot spaced close to the cutting edge that creates a resilient cantilevered spring element that includes the cutting edge. In response to cutting forces, the spring element will deflect and form a concave crossover area that improves cutting. A supporting material, particularly a precompressed supporting material, such as a precompressed or stretched polyurethane strip may be inserted into the slot. The supporting material limits or reduces the deflection of the spring element so that the yield strength of the spring element is not exceeded and it returns to its original position when the forces are removed. A precompressed supporting material exerts an outward force on the spring element. A polyurethane strip may be precompressed by stretching it before it is inserted into the slot.

Abstract: Chromatographically active stationary phases and adsorbents are made from sol-gels produced by the hydrolysis and condensation of alkoxysilanes that contain hydrolyzable alkoxy groups and non-hydrolyzable organo groups. The organo groups provide chromatographic activity in the resulting hybrid organic-inorganic material. Deposited as hybrid sol-gel coatings on solid supports, the coatings are heated to activate them. Hybrid organic-inorganic materials which contain different organic groups distributed in an inorganic network may be designed for the improved analysis of specific groups of compounds by the selection of the organo groups. Hydrocarbon mixtures may be advantageously analyzed by such hybrid materials.

Abstract: Blades with tungsten carbide cutting edges have a surface at a relief angle and a surface at a reverse angle at the periphery. A smooth crown is provided at the intersection of the surfaces. The crown will contact and be included within an overlap of a cooperating offset steel blade. The relief angle may be between about 1 and 3 degrees and the reverse angle about 1/4 to 1 degree. The crown may have a finish of about 2-6 micro-inches. The contact between the blades during operation provides a polishing or self-sharpening effect. The tungsten carbide blades are used in rotating shear wheel devices and scissor cutting devices to cut tire cord fabric.

Abstract: Solventless ultraviolet (UV) radiation curable polyamideimides which are useful as coatings for substrates are disclosed. The UV curable solventless polyamideimides are prepared by grafting acrylate functionality on the polyamideimide backbone The polyamideimides of the invention may be a part of UV curable compositions.

Abstract: Both a system and a method are provided which allows an eddy current probe to accurately determine both the proximity and dimensions of non-conductive structures which are normally invisible to such probes. The system includes a portable target medium that is movable into a known position with respect to the non-conductive structure, and that includes a conductive material that couples strongly with a fluctuating magnetic field, and a movable eddy current probe that emanates a fluctuating magnetic field and which generates a signal indicative of the magnitude of the interaction between the field and the portable target medium from which the distance between the two may be computed. The system may be used to determine the proximity of non-conductive structures such as plastic pipes that have been buried under ground, as well as the dimensions of such non conductive structures.

Abstract: A multiple outlet locking receptacle has a molded insulating body which includes a housing portion and a mounting flange portion formed integrally therewith. The housing portion has a front face thereon. The receptacle includes multiple groups of internal contact elements disposed in the housing portion of the body rearwardly of the front face thereon. The multiple groups of contact elements define multiple electrical outlets adapted for receiving multiple outlet plugs. Multiple arrays of plug blade receiving apertures are defined in the front face of the receptacle body housing portion. The multiple arrays of apertures are aligned with the multiple groups of internal contact elements and have arcuate configurations for accommodating insertion of the blades of the multiple outlet plugs through the apertures into electrical contact with the internal contact elements and then rotation of the blades relative to the internal contact elements into locking relation therewith.

Abstract: A hydrocarbon vapor sensor which is simple and low cost and can easily detect the existence of hydrocarbon vapor. The device is temperature compensated so that a change in resistance due to a change in temperature is avoided and an arcurate response is always provided. The sensor can be used in a system in which a number of sensors are provided at various depths to determine whether a leak or a ground spill has occurred.

Abstract: An actuator plate type electrical switch employs an actuating mechanism which includes an overcentering cam, sleeve, actuator plate, plunger, and biasing spring. The cam is rotatable between first and second overcentered positions and has an actuating lobe aligned with a contact assembly causing the assembly to assume respective contact and non-contact positions upon rotation of the cam to corresponding first and second overcentered positions. The sleeve has a central passage and a transverse slot communicating with the passage. The cam is received through the transverse slot. The sleeve also mounts the actuator plate outwardly from the cam. The sleeve and actuator plate are pivotal together about an axis which extends parallel to the cam rotational axis. The plunger, biased by the spring toward and into continuous engagement with the center of the cam, is slidably mounted in the sleeve passage for reciprocal movement toward and away from the cam.

Abstract: A UV curable electrically conductive adhesive has been developed with low resistivity, adequate lap shear strength, good thermal stability, and very stable conductivity at high temperatures of about 100.degree. C. and high humidity. The adhesive may be applied by silk screen printing and cured by UV in about 8 seconds. The adhesive may also be used as a replacement of solder in automated surface mount technology for electronic circuit fabrication. The adhesive is a mixture of (A) a blend of an acrylate epoxy and a urethane, a copolymer of an acrylate epoxy and a urethane, or mixtures thereof; (B) a polyfunctional acrylate monomer; (C) a photoinitiator, and (D) a conductive filler. Optionally, adhesion promoters and flow control agents may be used.

Abstract: A process for fabricating cermet electrodes for solid oxide electrochemical cells by sintering is disclosed. First, a porous metal electrode is fabricated on a solid oxide cell, such as a fuel cell by, for example, sintering, and is then infiltrated with a high volume fraction stabilized zirconia suspension. A second sintering step is used to sinter the infiltrated zirconia to a high density in order to more securely attach the electrode to the solid oxide electrolyte of the cell. High performance fuel electrodes can be obtained with this process. Further electrode performance enhancement may be achieved if stabilized zirconia doped with cerium oxide, chromium oxide, titanium oxide, and/or praseodymium oxide for electronic conduction is used.

Abstract: Whether a compound will thermoparticulate, that is, decompose to produce particles detectable by an ion chamber monitor or a condensation nuclei monitor and, if so, at what temperature, is predicted by determining the decomposition products of the compound, eliminating the compound if none of its decomposition products are greater than 25 .ANG., and using the temperature at which the decomposition products greater than 25 .ANG. have a vapor pressure of 10 millimeters as an estimate of the temperature at which the compound will decompose to produce products detectable by the monitor. Also disclosed are compounds which have been found to thermoparticulate at low temperatures.

Abstract: The present invention is a method of rapidly and reproducibly checking the quality of zirconium base material welds and heat affected zones. In this method, weldment samples are immersed in an elevated temperature fused salt bath for a time period sufficient, at the bath temperature selected, to produce an essentially black oxide film in acceptable quality welds while producing a scaling oxide in unacceptable welds.

Abstract: Disclosed is a method of preparing an amorphous metal core 1 for use in a transformer. The uncut legs 7, 8 and 9 of the core 1 are covered with an adhesive impregnated substrate 10, the edges 11 of which are bent over to make contact with the core 1. A release sheet 12 and a plate 13 are placed over the adhesive impregnated substrate, the plate 13 is pressed against the core 1, and the adhesive is cured. The process is repeated with the edges on the opposite side of the core.

Abstract: Disclosed is a method and apparatus for measuring the burnup of nuclear fuel. A curve giving the calculated relationship between the fast neutron emission rate and the burnup of fuel is prepared. The fast neutron counting rate from a sample of nuclear fuel of known burnup is measured and the proportionality ratio between that measurement and the fast neutron emission given by the curve for the same burnup is determined. The fast neutron counting rate of nuclear fuel of unknown burnup is then measured and multiplied by the proportionality ratio to determine the fast neutron emission rate, from which the unknown burnup is then determined by means of the curve.

Abstract: A ferromagnetic amorphous metal strip insulated with a coating of glass that is about 0.001 to about 0.02 mils thick.

Abstract: Disclosed is an apparatus for determining the eccentricity of insulation on an elongated conductor comprising two flat parallel opposing electrodes positionable on opposite sides of an insulated conductor in physical contact with the insulation of the conductor, means for moving one of the two electrodes relative to the other in a direction parallel to the electrodes, whereby the insulated conductor is rotated therebetween, electrical contact means for making electrical contact to the conductor, means for translating the electrical contact means at the same rate that the insulating conductor is translated between the two flat opposing electrodes, and electrical means for determining the ratio of the capacitance of each of the two electrodes to the conductor as the insulating conductor is rotated between the two electrodes.

Abstract: Disclosed is a method of determining the eccentricity of the insulation on a round wire without making electrical contact with the wire. The insulated wire is passed between two pairs of opposing electrodes, pair A-C and pair B-D, positioned at a known distance from the insulated wire and spaced apart azimuthally at a known angle. Known, out of phase, alternating voltages are applied to each pair of electrodes. Signals are generated from the four electrodes that are proportional to (1) v.sub.A -v.sub.B +v.sub.C -v.sub.D and (2) -v.sub.A -v.sub.B +v.sub.C +v.sub.D, where v.sub.A, v.sub.B, v.sub.C, and v.sub.D are the voltages on electrodes A, B, C, and D, respectively. From those signals the eccentricity of the insulation on the wire can be determined by ##EQU1## where .vertline.q.vertline. is the magnitude of ##EQU2## The direction of the eccentricity can be determined from the difference in phase between the two signals.

Abstract: Disclosed is a superconducting Josephson junction which comprises a layer of niobium nitride on a substrate, an epitaxial layer of a pseudo-binary compound on the layer of niobium nitride, where the pseudo-binary compound has the composition about 3 atomic percent MgO--about 97 atomic percent CaO, to about 97 atomic percent MgO--about 3 atomic percent CaO, and an epitaxial layer of niobium nitride on the layer of pseudo-binary compound. Also disclosed is a method of making a Josephson junction by depositing a layer of niobium nitride onto a suitable substrate, depositing an expitaxial layer of a pseudo-binary compound onto the layer of niobium nitride, where the pseudo-binary compound has a composition of about 3 atomic percent MgO--about 97 atomic percent CaO, to about 97 atomic percent MgO--about 3 atomic percent CaO, and depositing an epitaxial layer of niobium nitride onto the layer said pseudo-binary compound.

Abstract: Disclosed is a process for forming a conductive coating of polyacetylene or substituted polyacetylene on fibers. The fibers are immersed into a solution of a catalyst for the polymerization of acetylene or substituted acetylene. The fibers are removed from the solution and acetylene or substituted acetylene gas is permitted to permeate the fibers, polymerizing to form a polyacetylene coating on the fibers. The coated fibers are then doped to make the polyacetylene coating conductive. Also disclosed are conductive polyacetylene coated fibers and a laminate containing conductive polyacetylene coated fibers.

Abstract: An alkoxide glass former composition has silica-containing constituents present as solid particulates of a particle size of 0.1 to 0.7 micrometers in diameter in a liquid carrier phase substantially free of dissolved silica. The glass former slurry is resistant to coagulation and may contain other glass former metal constituents. The immobilization of nuclear waste employs the described glass former by heating the same to reduce the volume, mixing the same with the waste, and melting the resultant mixture to encapsulate the waste in the resultant glass.