Abstract: Thermoplastic copolyetherester elastomers are stabilized against heat and light aging by incorporating into the copolyetherester effective concentrations of a phenolic antioxidant and a hindered amine photostabilizer of the formula ##STR1## where R.sub.1 is hydrogen or an alkyl radical of 1-12 carbon atoms, R.sub.2 and R.sub.3 are alkyl radicals of 1-12 carbon atoms, benzyl, or 3,5-di-tert-butyl-4-hydroxybenzyl.

Abstract: A passive optical switching apparatus for use with a sales display device, or with a secret security device or with a safety device. The apparatus includes two photo resistor systems which are positioned so that their optical axes and field of view intersect. Also included is the complementary electronic circuitry. If a light change occurs within the region defining the intersection a switching signal is created to trigger the device to which it is attached.

Abstract: Fiber-reinforced polyethylene terephthalate molding compositions containing(A) about 20 to about 80% by weight of polyethylene terephthalate;(B) about 5 to about 50% by weight of a reinforcing fiber; and(C) about 6 to about 60% by weight of a copolyether-ester consisting essentially of(a) long-chain ester units having the formula: ##STR1## wherein G is the divalent radical remaining after removal of the terminal hydroxyl groups from a poly(alkylene oxide) glycol having a number-average molecular weight of about 400 to about 6000; and R is the divalent radical remaining after removal of the carboxyl groups from a dicarboxylic acid; and(b) short-chain ester units having the formula: ##STR2## wherein D is the divalent radical remaining after removal of the hydroxyl groups from a low molecular weight diol having a molecular weight of less than about 250; and R is as defined above;with the proviso that the short-chain ester units constitute about 40 to about 90% by weight of the polyether-ester, and the long-chain

Abstract: A magnetic image decorator is disclosed wherein two or more rotatable cylindrical magnetic augers disposed in a sump of magnetically attractable toner are used in conjunction with cooperating knife blades to decorate a surface containing a latent magnetic image and to distribute and redistribute toner particles to maintain a level sump.

Abstract: An ion sensitive electrode comprises a small disc of ion selective polymer for contact with a measuring liquid, the ion selective polymer disc being in contact with a wire of low drift potential relative to the ion selective polymer disc. The invention also includes an electro mechanical measuring arrangement in which the ion sensitive electrode may be used and also a reference electrode suitable for use therewith.

Abstract: Process, batch or continuous, for hydrogenating a mixture of an aromatic mononitro-non-amino compound and an aromatic dinitro and/or an aromatic mononitromonoamino compound, which process comprises reacting hydrogen and a homogeneous or heterogeneous liquid mixture of at least 25 weight % of an aromatic mononitro-non-amino compound and at least 25 weight % of at least one compound selected from aromatic dinitro compounds and aromatic mononitromonoamino compounds, for example, a 25:75 weight % mixture of p-nitroaniline and o-nitrotoluene, with vigorous mixing, in the presence of 0.05-1.0 weight % of an hydrogenation catalyst derived from a metal of Group VIII of the Periodic Chart of the Elements, at a temperature of 75.degree.-225.degree. C. and a pressure of 50-800 p.s.i.g.

Abstract: A method of rinsing a wetted particulate solid bed in liquid-contacting service by gravity draining or by gas blowing the bed and then rinsing it with successive gas-impelled pulses of rinse liquid.

Abstract: Plastic materials are dewatered in an extruder by applying heat and pressure and venting out vaporized water; before the plastic is extruded through the die orifice a gas is injected under high pressure into the plastic and this causes gas explosions when the plastic is released through the die orifices. The particles produced have micropores which provide improved workability, and form bales of controllable density.

Abstract: A signal detector monitoring the presence or absence of line currents in a multiplicity of circuits of a telecommunication system includes an orthogonal matrix MN of magnetic-core sensors divided into (m+1) rows and (n+1) columns. The cores of the first m rows and first n columns constitute active sensors provided with respective writing conductors extending from m.multidot.n monitored circuits. A duplicated first set of wires 1A, 1B, each coacting with the cores of one row, are successively energized with interrogation and resetting currents in the course of a scanning cycle; a duplicated second set of wires 2A, 2B, each coacting with the cores of one column, terminate at respective sense amplifiers AS which read the states of the interrogated cores and load the detected responses into a buffer register RPP from which they are serially read out to a processor DU.

Abstract: Fibers with enhanced tenacity are prepared by heat treating oriented fibers from anisotropic-melt-forming linear aromatic and cycloaliphatic polymers, especially polyesters (including copolyesters), while said fibers are essentially relaxed, at temperatures near the flow temperature but sufficiently below to prevent substantial interfilament fusion, for a period of from five seconds to several hours until the fiber tenacity is increased by at least 50% and to at least 10 grams per denier.

Abstract: A biocular magnifying lens suitable for use as an eyepiece in a night vision device comprises from front to back a positive element which is bi-convex or meniscus convex towards the front, a negative meniscus element concave towards the front, a positive singlet or doublet element which is convex towards the front, a positive element which is bi-convex or meniscus convex towards the front, and a positive meniscus element convex towards the front.

Abstract: In the use of certain metal salts of the hemi-perester of maleic acid as catalysts for the polymerization and curing of ethylenically unsaturated monomers and of methyl methacrylate-containing syrups the addition of an activator such as sodium bisulfite provides a substantial reduction in the curing time. The process is relatively insensitive to the amount of filler used. The salts of maleic hemi-peresters, in combination with the activators, are also useful for polymerizing ethylenically unsaturated monomers.

Abstract: Polysiloxane resin coatings containing a dispersed phase of particulate organic modifier which is tougher than the polysiloxane and which has an adequately high coefficient of friction have improved craze resistance permitting the use of thicker coatings with greater durability.

Abstract: Apparatus supports a chair at the side of a pool in position to receive handicapped person. Chair is rotated out over the water and then lowered into the water where the occupant glides or pushes off for a swimming or therapy session. The chair is adapted to receive the person after the session and then is raised out of the water and rotated back to the poolside position so the person can leave the chair.

Abstract: An improved quartz crystal resonator of the type comprising an AT type cut quartz plate is provided in which the plate comprises metallized main electrodes on opposed surfaces thereof which are surrounded by spaced apart metallized supplementary control electrodes. The opposed surfaces of the plate provide a non-metallized unused portion for the plate over a substantial portion of the opposed surfaces. Each of the supplementary control electrodes has at least an associated parameter of width, thickness, density, air gap distance from the respective main electrode and an applied electrode potential and each of the main electrodes has at least an associated corresponding parameter. At least one of the associated parameters of the supplementary electrodes is different from the corresponding associated parameter for the respective main electrodes for controlling the associated Q- factor and frequency of the spurious resonance frequencies.

Abstract: A water-based polyurethane dispersion is prepared by mixing an aliphatic diisocyanate with three critical active hydrogen compounds, to form a prepolymer containing carboxyl groups and free isocyanate groups, then dispersing the prepolymer in an aqueous medium containing a tertiary amine, which converts the carboxyl groups to carboxylate ions, and a diamine, which chain-extends the prepolymer through its --NCO groups. These aqueous dispersions are storage-stable for at least several months and are useful in many coating applications, among others, for coating textile materials.

Abstract: A method and device for maintaining an exact track when playing back video ignals, which are recorded on a magnetic tape in oblique parallel tracks with different azimuth angles.

Abstract: The invention provides a telephoto lens with a positive front group of lens elements, a negative middle group of lens elements and a rear positive part comprising a lens element or group of lens elements. The front group of elements includes at least one positive doublet consisting of a positive element of a crown glass type in front of a negative element of a flint glass type having a positive red relative partial dispersion coefficient deviation. The middle group of elements includes a positive lens element of a crown glass type and a negative lens element of a flint glass type having a positive red relative partial dispersion coefficient deviation. The rear element or group of elements may consist of a doublet component comprising a negative bi-concave element and a positive bi-convex element, the rear part of the telephoto lens being well separated from the negative middle part.

Abstract: Anti-inflammatory 1-substituted-4,5-diaryl-2-(substituted-thio) imidazoles and their corresponding sulfoxides and sulfones useful for treating arthritis and related diseases.

Abstract: An X-ray tube in which the electron beam is deflected over the X-ray emissive anti-cathode is provided with an anti-cathode, the surface on which the electrons impinge is corrugated in order to aid in the dissipation of heat.