Abstract: Compounds of the formula ##STR1## wherein X is an amino acid or ester are useful hypotensive agents due to their angiotensin converting enzyme inhibition activity.

Abstract: 4-Chloro-2-[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)aminocarbonyl]aminosulf onyl]benzoic acid (1-methylethyl) ester has unexpectedly been discovered to be an outstanding agricultural chemical. The compound is a highly active preemergent and/or postemergent herbicide. The invention includes the compound, compositions containing the compound, and its method-of-use as an agricultural chemical.

Abstract: Process for preparation of dot-etched photopolymerizable lithographic film which comprises (a) exposing imagewise a photopolymerizable element consisting essentially of a support and a layer of caustic soluble photopolymerizable composition having dispersed therein a chemically soluble pigment, e.g., iron oxide, and optionally an overcoat layer; (b) developing the exposed element with caustic solution; and (c) treating the developed element with a chemical solubilizing agent for the pigment. A lithographic film is prepared.

Abstract: Antisoiling properties of polyamide filaments are enhanced upon melt-spinning by using a spin finish comprised of a textile lubricant, an antisoiling fluorochemical and an epoxy resin.

Abstract: Photopolymerizable composition consisting essentially of (A) at least one ethylenically unsaturated monomeric compound, (B) at least one 2,4,5-triarylimidazolyl dimer, (C) sensitizing amount of at least one polymeric sensitizer, weight average molecular weight 10,000 to 300,000, which is the reaction product of (1) a reactive photosensitizer and (2) a reactive polymer as defined herein, and (D) optionally an organic polymeric binder. The compositions are useful in photoresists, chemical milling, toning films and printing plates.

Abstract: A ladder apparatus having an elongated ladder assembly, a pair of pivotally mounted supporting legs, braces positionable to interconnect the legs and the ladder assembly to retain the legs in stable supporting relation to the ladder assembly, a collapsible platform borne by the ladder assembly and an adjustable leveling device mounted on the ladder assembly for ground engagement to support the ladder assembly on uneven surfaces. An auxiliary support assembly adapted for attachment to a ladder assembly having the foregoing elements.

Abstract: Heterocyclic alkylaminocarbonylsulfonamides, such as N'-[(4,6-dimethylpyrimidin-2-yl)methylaminocarbonyl]-N,N-dimethyl-1,2-benz enedisulfonamide, are useful as herbicides.

Abstract: A combing machine for textile fibres has a "gill" for combing a sliver of fibres and means for tearing successive tufts from the sliver of fibres as the tufts are combed, and partially superimposing the torn tufts on each other so as to form a continuous combed web. The tearing and superimposition is effected by contra-rotating tearing rollers mounted on support shafts which are rotatably supported at their ends by a pivotable carriage; each support shaft is also rotatably supported intermediate its ends, and carries two tearing rollers side by side and cooperating with a corresponding pair of tearing rollers mounted side by side on the contra-rotating support shaft.

Abstract: A body transparent to laser radiation, such as an optical fiber or a preform thereof, is transluminated by a monochromatic beam of a frequency in the THz range split off from a composite laser beam with two closely spaced frequencies produced by the Zeeman effect; the width of that beam in a plane transverse to the body axis is at least equal to the diameter of that body. Another monochromatic beam at the second laser frequency bypasses the transparent body and is recombined with the first beam downstream of the transluminated body to form a field of radiation which is photoelectrically sampled at closely spaced locations in the aforementioned transverse plane to provide a multiplicity of electrtical signals in the MHz range differing in phase from a reference wave of the same frequency photoelectrically obtained from the same monochromatic beams. The phase differences, determined by a comparator, are fed to a calculator computing the refractive-index profile therefrom.

Abstract: Dry nonelectroscopic toners comprising pigmented organic resin particles having a size distribution of 0.2 to 30 micrometers, not more than 50 percent of the particles being less than 1 micrometer, surface coated with nonionic siloxane polyoxyalkylene copolymer with a polar end as defined having a hydrophilic lipophilic balance in the range of 7 to 15. The toners are useful in color developing positive- and negative-working photosensitive elements, particularly in automatic toning machine. Good clean-up and low stain propensity are achieved.

Abstract: The invention is a method and apparatus for removing veneer coating shards from granular, medicinal formulations which are being reworked. The formulation is ground up, sifted to remove the smaller pieces which do not contain veneer shards, and then placed into an air suspension under an inverted funnel-like separator cone. The separator cone has air outlets for the air suspension apparatus, as well as a vacuum inlet, adjacent its upper end. The light veneer shards ride up the sloped walls of the separator cone, and they are sucked into the vacuum inlet, thereby removing them from the granulation.

Abstract: Perhalogenated dioxoles, halogenated dioxolanes, a process for making the dioxoles and dioxolanes, and polymers of dioxole and dioxolane monomers.

Abstract: A particle counting apparatus includes a cuvette having a cylindrical bore therethrough and an exterior cylindrical surface the axis of which is perpendicular to the axis of the bore. The apparatus is adapted to detect light scattered from a particle that is small as compared to the wavelength of incident radiation and has an index of refraction close to that of the medium in which it is entrained.

Abstract: Method and apparatus for hand drilling wherein the reaction torque generated in the hand drill from the workpiece is transferred to a support for the drill and then back into the workpiece to not only divert stress from the operator's body but also to hold the workpiece in fixed position. In one preferred embodiment, the drill support includes a holder, means mounting the body of the drill in the holder, and an elongated load transfer number on which the holder is mounted for vertical movement therealong. In use, the lower end of the load transfer member is located adjacent the side of the workpiece so that the equal but oppositely directed torques generated in the workpiece and the drill respectively will hold the workpiece fixed against the side of the load transfer member while the torque (reaction) generated in the drill is transferred away from the operator's body to the load transfer member and then into the workpiece.

Abstract: Process for preparation of dot-etched photopolymerizable lithographic film which comprises (a) exposing imagewise a photopolymerizable element consisting essentially of a support bearing (i) layer of acid soluble photopolymerizable composition having dispersed therein a chemically soluble pigment; or (ii), in order, (a) layer of acid soluble photopolymer having dispersed therein chemically soluble pigment, (b) layer of clear, unpigmented acid soluble photopolymer composition; or (iii), in order, (a) nonphotosensitive layer of an aqueous soluble polymeric binder having dispersed therein chemically soluble pigment, (b) layer of clear unpigmented acid soluble photopolymer composition, and optionally on each of said elements an overcoat layer; (b) developing the exposed element with acid solution; and (c) treating the developed element with a chemical solubilizing agent for the pigment. Lithographic films are prepared.

Abstract: An adjustable slide tray made of a base and a sliding tray which fits within the base is described. The slide tray unit may be used for holding such objects as medicines in a pharmacist's refrigerator. The slide tray unit also includes interlock means for holding trays together.

Abstract: A system for automatically filling and launching balloons which may be used, for example, for cloud seeding. The system includes a balloon launching station frame, a nozzle mounted on the frame onto which the narrow end of a balloon can be attached so that gas can flow through the nozzle into the balloon, a conduit coupled to a source of gas and to the nozzle for delivering gas through the nozzle into the balloon, gas flow control apparatus responsive to first signals for controlling the flow of gas through the conduit, and a release mechanism responsive to second signals for disengaging the balloon from the nozzle to thereby release the balloon to the atmosphere. For launching a series of balloons, the system may include a plurality of nozzles, conduits, gas flow control mechanisms, and release mechanisms arranged so that after one balloon is filled and released, a second balloon may be filled and launched at a selectable time thereafter, etc.

Abstract: A new variety of tea rose distinguished by its very large, fully double white flowers borne on strong, fairly long stems, the blooming habit being abundant and continuous in greenhouse, the plant having a particularly vigorous vegetation and growth habit particularly suitable for greenhouse production for cut flowers.

Abstract: A new and distinct variety of rose plant of the tea class distinguished by its large, double red flowers which are borne on rigid and very long stems, the flowers when fully blown having a current red coloration on the inner surfaces of the petals and a crimson purple coloration on the outer surface of the petals. The flowers are long lasting as cut flowers and the petals drop off cleanly.