Abstract: An end connector for flexible printed circuits, with a folding casing of insulating material. The connector is suitable to receive and contact through contact means the edge part provided with parallel conducting strips of a flexible circuit. The bottom of the casing contains a resilient means and cams for positioning the flexible circuit in the connector.

Abstract: An explosive booster capable of being connected to donor and receiver detonating cords in the field via a cord-connector to propagate a detonation from the donor cord to the receiver cord, at least one of which cords is a low-energy detonating cord, has a granular explosive charge, e.g., PETN, between the walls and closed bottoms of inner and outer shells, the inner shell having an axial open cavity and the explosive charge being sealed off from the atmosphere. A length of detonating cord is inserted into the cavity of the booster in a manner such that an end-portion thereof is surrounded by the granular explosive in the spacing between the walls of the shells, the cord being held in the cavity by retention means located preferably in the cavity. Another length of detonating cord is positioned transversely outside and adjacent to the closed end of the outer shell, preferably in a transverse slot in a tube which holds the booster.

Abstract: Cultivation of a strain of the microorganism Nocardia sp. 11,340, which has been deposited in the American Type Culture Collection as A.T.C.C. No. 31531, yields a novel antibiotic substance EM 4940, having activity against a range of gram-positive and gram-negative bacteria, yeasts, fungi, acholeplasma, and the protozoan Trichomanas vaginalis.

Abstract: Steroids having as a substituent a group having the formula ##STR1## wherein R is hydrogen or alkyl and n is 0, 1, 2, 3 or 4 are useful as haptens and are also useful when radioiodinated as tracers in radioimmunoassays.

Abstract: New imidazole derivatives of 1,5,6,11-tetrahydrobenzo[5,6]cyclohepta[1,2-b]pyrazolo[4,3-e]-pyridines have the general formula ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and each may be hydrogen, lower alkyl, phenyl-lower alkyl, phenyl or substituted phenyl, and R.sup.3 and R.sup.4 may be the same or different and each may be hydrogen, halogen, lower alkyl, or lower alkoxy. They and the salts thereof are useful as antimicrobial agents, and in particular as antifungal agents.

Abstract: Compounds are provided having the structure ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and each may be hydrogen, lower alkyl, phenyl-lower alkyl, phenyl, substituted phenyl wherein the phenyl group bears one halogen, hydroxy, lower alkyl, lower alkylthio, cyano or nitro group; R.sup.3 is halogen; and R.sup.4 and R.sup.5 may be the same or different and each may be hydrogen, hydroxy, lower alkoxy, lower alkylthio or halogen.These compounds as well as acid addition salts thereof are useful as antimicrobial agents.

Abstract: A bulky continuous filament yarn, in which continuous filament core yarns of polymeric material are substantially straight and free from loops and comprise from about 65 to about 93 percent of the total filaments by weight while the remainder of the total filaments are continuous filament effect yarns having a denier per filament of up to 5.0 that are inserted between the filaments of the core yarn and protrude from the surface of the core yarn in a mixture of crunodal and arch-like loops, is made by feeding a larger denier yarn at low overfeed and a much smaller denier yarn at low to moderate overfeed through a jet supplied with ambient air.

Abstract: Heat treatment of shaped articles, larger than films or fibers, formed from anisotropic-melt-forming polymers provides an increase of at least 25% in energy to break in flexure. In at least one direction of measurement the heat treated articles are characterized by a flexural break strength of at least 10,000 psi, maximum strain to break in flexure of at least 2% and a flexural modulus of at least 500,000 psi. In many instances the heat treated articles can be further characterized by a notched Izod impact strength of at least 2 foot-pounds per inch.Since the heat-treated shaped articles have high levels of strength, stiffness and toughness, they are useful as replacements for some metals, e.g., brass.

Abstract: The pressure indicator has a body provided with an attachment shank having a pressure fluid passage. A cylinder bore is located at one end of the body and communicates with the passage. An end plug having a bore and a counterbore is threaded into the body. The bore terminates at the plug inner end in a first annular flat abutment surface. The counterbore terminates in a second annular flat abutment surface which is located between the inner and outer ends of the plug and forms one end of the plug bore. A piston is nested in the cylinder bore having a piston rod axially extending through the cylinder bore and projecting through and outwardly of the plug. A compression spring is interposed between the plug and piston and yieldably biases the piston towards one end of the cylinder bore. The piston is variably movable longitudinally against the spring on application of pressure to the pressure fluid passage.

Abstract: A graft copolymer having a polymeric backbone with pendent hydroxyl groups; wherein the hydrogen atom of at least the one the hydroxyl groups is replaced by the formula ##STR1## where R is an aliphatic group, a cycloaliphatic group or an aromatic group; R.sup.1 is an alkylene group having 2-6 carbon atoms; R.sup.2 is a polymer segment of a vinyl addition polymer, such as butyl acrylate/hydroxyethyl acrylate; coating compositions of this copolymer can be cross-linked with conventional cross-linking agents such as an alkylated melamine formaldehyde resin or an organic polyisocyanate and coating compositions useful for flexible elastomeric substrates can be prepared from this copolymer.

Abstract: An improved peel apart photosensitive element comprises a strippable cover sheet, a photoadherent layer, and a tacky, nonphotosensitive contiguous layer receptive to colorant or particulate material, and a support. The element is useful in applications such as color proofing. Such elements are capable of producing reverse toned or colored images as well as duplicate colored images with greatly improved tonal range and image fidelity.

Abstract: Aqueous solutions of formaldehyde are stabilized against precipitation by the incorporation therein of 0.1 to 1000 p.p.m. of a low molecular weight vinyl polymer containing acetal, acetate, hydroxyl, and optionally, formal, propional or butyral groups. Preferably, the polymer is added to the formaldehyde solution as a methanol solution.

Abstract: Alkyl perfluoro-.omega.-fluoroformyl esters are provided which have the formula: ##STR1## wherein R is alkyl of 1-6 carbon atoms, andn is 0-6 (preferably 0).compounds where n is 0 are prepared by contacting SO.sub.3 with a compound of the formula ROOC--CF.sub.2 --CF.sub.2 --OR.sup.1. Compounds where n is 1-6 are prepared by contacting a compound where n is 0 with hexafluoropropylene oxide.

Abstract: A process for hydrogenation of butadienepolyperoxide to 1,2-butanediol and 1,4-butanediol which comprises hydrogenating a mixture of butadienepolyperoxide in a solvent and with a catalyst comprising an activated phase-pure NiAl.sub.3 at a temperature of from 75.degree.-120.degree. C. and a pressure of at least 1000 psi.

Abstract: A process for preparing beta or gamma crystals of linear quinacridone, substituted quinacridone or solid solutions thereof by contacting premilled quinacridone with 45-60% by weight sulfuric acid and 0-10% by weight of a surfactant based on the quinacridone at a weight ratio of acid to quinacridone of 3:1-6:1 to form a slurry, agitating said slurry for a period of time at 45.degree.-75.degree. C., adding water to form a dilute slurry, agitating said dilute slurry for a period of time at 75.degree.-95.degree. C. and separating quinacridone from the liquid of the dilute slurry.

Abstract: A dump truck or trailer for hauling and dumping dry bulk solids conventionally by gravity and also having the capability of conveying the solids upward to a storage facility. The unit includes a container mounted to a frame on wheels. A hydraulic ram tilts the container for dumping through a rear outlet. A pneumatic conveyor is carried by the frame with an intake at the rear of the container. A gate allows the solids to be dumped conventionally by gravity, or to be blown to a storage facility by the pneumatic conveyor.

Abstract: A photosensitive system comprising in intimate admixture (1) a dye in its leuco form, (2) a photooxidant taken from the group of hexaarylbiimidazole compounds, benzophenone, para-aminophenyl ketones, polynuclear quinones and thioxanthenones, and mixtures thereof and in the presence of the admixture is a 5-member-heterocyclic phenylhydrazide compound. The cyclic phenylhydrazide can be present in the admixture, or a dry coating of the admixture, after imagewise exposure, is treated with a solution of the heterocyclic compound. The system is useful in formation of colored images.

Abstract: An animal feeding apparatus for the holding and delivery of feed to animals. The apparatus includes a feed hopper with two inwardly sloping walls and a flow diverter at the bottom of the hopper, splitting and diverting the flow of feed to each of two feeding troughs. The flow diverter extends along the entire length of the feed hopper, being formed by the junction of the rear sloping wall of each feeding trough. The two feeding troughs, extending the entire length of the feeder, are on opposite sides to each other and have a horziontal base portion, a sloping upward rear portion and a sloping upward front portion whose edge is bent back forming a safety edge. Each feeding trough has a plurality of agitators that extend horizontally into the feeding trough and vertically into the feed hopper. The animals through their feeding motion move the agitators which in turn loosen feed in the feed hopper. Individually adjustable feed gates above each agitator control the amount of feed flow.