Abstract: 2-Substituted-5-trifluoromethyl-1,3,4-thiadiazoles of the formula ##STR1## in which R is substituted alkyl, phenyl monosubstituted in the o- or m- position, polysubstituted phenyl, substituted phenylalkyl, phenylalkenyl, substituted phenylalkenyl, an optionally substituted 5-membered or 6-membered heterocyclic radical with 1 to 4 hetero-atoms selected from N and S atoms, optionally substituted benzimidazolyl or benzthiazolyl, optionally substituted naphthyl, quinolyl, cyano or one of the groups ##STR2## wherein R.sup.1 and R.sup.2 conjointly are a trimethylene, tetramethylene or pentamethylene group,X is oxygen or sulfur,R' and R" each independently is alkyl or, together with the nitrogen atom and optionally further hetero-atoms selected from O and N atoms, form an optionally substituted 6-membered or 7-membered ring, andN is 0, 1 or 2,Which possess fungicidal, bactericidal, arthropodicidal and insecticidal properties.

Abstract: O-Alkyl-S-?1,6-dihydro-6-thioxo-pyridazin-(1)-yl methyl!-(thiono)-(di)-thiol-phosphoric (phosphonic) acid esters and ester-amides of the formula ##STR1## in which R is alkyl with 1 to 6 carbon atoms,R.sup.1 is alkyl, alkoxy, alkylmercapto or alkylamino with a maximum of 6 carbon atoms per alkyl chain,R.sup.2 is halogen, alkoxy with 1 to 5 carbon atoms or alkyl with 1 to 5 carbon atoms,R.sup.3 and R.sup.4 each is hydrogen or conjointly form a fused benzene ring, andX is oxygen or sulfur atomWhich possess nematicidal and arthropodicidal, e.g. insecticidal and acaricidal properties.

Abstract: In the Claus process wherein hydrogen sulfide and sulfur dioxide are reacted to form sulfur and a waste exhaust gas, the invention treats the exhaust gas to recover additional sulfur therefrom.

Abstract: A fire-proofing sealing material comprising a flexible tube enclosing an aqueous alkali metal silicate in the form of a solution or a gel. The sealing material is placed in an opening such as a joint or crack and, in the event of a fire, the silicate foams and forms a fire-proof seal.

Abstract: A pressure gauge for indicating small pressure changes includes a sac of thin flexible film material communicable with and inflatable by the pressure to be indicated, during use. The sac is supported by a base so that the sac effectively inflates in a generally vertical direction, during use. A transmission plate is pivotally mounted to the base and bears against the sac under the influence of its own weight. A pointer is directly connected to the transmission plate to indicate the position thereof under the influence of pressure in the sac to effect the indication of that pressure.

Abstract: A mounting for an ammunition container for mounted rapid-fire weapons comprising a yoke disposed on a bracket which yoke is pivotable about a horizontal axis disposed at about the level of the upper edge of the ammunition container to be contained therein, the yoke being secured at its lowermost position by a catch means. Disclosed in the application is such a mounting in which means are provided to urge an ammunition container toward a rapid-fire weapon. Means are also provided to dispose the ammunition container precisely within the mounting, to rapidly remove any container top so as to permit the rapid feed of ammunition into the weapon. A device for insuring that the yoke bears against the ammunition is provided by which inadvertent release of the same is precluded.

Abstract: O-?1-substituted-6-pyridazinon(3)yl!-thionoalkanephosphonic acid esters of the formula ##STR1## in which R.sub.1 and R.sub.2 each independently is alkyl with 1 to 7 carbon atoms,R.sub.3 is alkyl, cyanoalkyl, alkylcarbonylalkyl, carbalkoxyalkyl, hydroxyalkyl, alkylthioalkyl or halogenalkyl with 1 to 4 carbon atoms per alkyl radical, alkenyl or alkynyl with 3 to 5 carbon atoms, benzyl, benzyl carrying at least one substituent selected from halogen and alkyl with 1 to 3 carbon atoms, phenyl, phenyl carrying at least one substituent selected from nitro, halogen, alkyl with 1 to 3 carbon atoms and carbalkoxy with 1 to 4 carbon atoms, morpholinomethyl or piperidinomethyl,R.sub.4 and R.sub.5 each independently is hydrogen or alkyl with 1 to 3 carbon atoms, andX and Y each independently is oxygen or sulfur,Which possess insecticidal and acaricidal properties.

Abstract: Breaks in heat seals between a paper member and a clear plastic member are detected by providing a paper member with a relatively dark coloration, for example dark blue, dark green or dark red, at least in the area of the heat seal, heat sealing the clear plastic member to the paper member in the desired seal area whereby upon breaking the heat seal there is a distinct color contrast between the break in the heat seal and the relatively dark coloration of the paper and any remaining heat sealed area. The method is especially suited for the manufacture of sterilizable packages or pouches for medical implements.

Abstract: A herbicidal composition containing as active ingredients(1) 4-amino-6-tert.-butyl-3-methylthio-1,2,4-triazin-5-one of the formula ##STR1## and (2) 2,6-dichloro-4-trifluoromethyl-4'-cyano-diphenyl ether of the formula ##STR2## preferably in a weight ratio from about 1:0.05 to 1:10. The composition can be used as a total herbicide or, at suitable levels of application, in growing crops as a selective herbicide against particularly resistant weeds.

Abstract: 1-Methyl-1,2,5,6-tetrahydropyridine-3-carboxylic acid esters of the formula ##STR1## wherein R stands for an alkyl group having 3 to 6 carbon atoms, a cycloalkyl group, an alkenyl group having 2 to 6 carbon atoms or an alkynyl group having 2 to 6 carbon atoms,Or a salt thereof.These compounds plus that where R is ethyl are used in combatting insects and acarids.

Abstract: A process for producing a linear polyester which comprises:(1) condensing excess 1,4-butanediol with a lower alkyl ester of an aromatic dicarboxylic acid at a temperature of less than 200.degree. C;(2) removing uncondensed 1,4-butanediol therefrom so that the reaction mixture contains no more than 1% by weight 1,4-butanediol;(3) condensing the so-formed dicarboxylic acid-bis-(4-hydroxy butyl ester) and any oligomer thereof with a dicarboxylic acid at a temperature of 200 to 250.degree. C, the dicarboxylic acid being present in no more than a stoichiometric amount; and(4) polycondensing the resultant condensate by heating the same at between 250.degree. and 310.degree. C in a vacuum.

Abstract: In the making of a mortar or concrete rich in aluminate cement wherein the cement is mixed with water to hydrate and is thereafter permitted to harden, the improvement which comprises adding to the mixture of cement and water an ionic compound containing anions X.sup.n- whereby there are formed mixed crystals of the formula[Ca.sub.2 Al(OH).sub.6 ].sup.- [( m/n)X.sup.n- (1-m) Al(OH).sub.4.sup.- mAl(OH).sub.3 ; aq].sup.-Preferably X is NO.sub.2.sup.-, SO.sub.3.sup.2-, S.sub.2 O.sub.3.sup.2-, Fe(CN).sub.6.sup.3-, PO.sub.4.sup.3-, FE(CN).sub.6.sup.4-, MnO.sub.4 --, ClO.sub.3.sup.- or CrO.sub.4.sup.2-. The mixed crystals are new.

Abstract: In an apparatus for the gasification of a biomass in an aqueous medium in the presence of organic substances degradable by the biomass, comprising a gasification tank, and a clearing chamber for the gasified water-containing biomass provided concentrically around the gasification tank, the gasification tank communicating with the clearing chamber through an inlet in the latter, the improvement whereinA. the gasification tank is from about 10 to 32 meters high, has a height/diameter ratio between approximately 40 and 0.2, is provided adjacent its floor with gas inlet points, and is connected via inlet pipes to at least one gas removal and flocculation cyclone;B. the same liquid level in all the clearing chambers is maintained by means of an overflow channel at about 0.1 to 2 meters below the liquid level of the gasification tank; andC. a sludge removal pipe connects each clearing chamber with a collector pipe.Advantageously the clearing chamber is funnel shaped.

Abstract: This invention relates to a process of producing magnesia from magnesium-containing carbonate ores, which comprises leaching with sulfuric acid, subsequently neutralizing the solution with magnesia, separating the undissolved impurities, crystallizing magnesium sulfate under pressure and above 150.degree. C so the crystals have from 1.5 to 4 moles of water per magnesium sulfate molecule and thermally decomposing the latter to form magnesia and SO.sub.2, recovering sulfuric acid from the sulfur dioxide produced in the decomposing steps and recycling the sulfuric acid to the leaching stage.

Abstract: The device is based on an optical transmission arrangement in which a signal change occurs when a foreign body is present in the liquid. By means of a rotating device the cylindrical container to be tested is set in rotation and subsequently braked. Then optical testing is carried out. The light beams passing through the container are picked up by a plurality of photo electric detectors arranged above one another. The photodetectors are divided into groups, which are each switched on sequentially be a programme control unit from top to bottom to effect the measurement, with one photodector group being switched on when the vortex of liquid occurring as a result of the container rotation has subsided after the standstill of the container and disappeared from the field of view of the photodector group.

Abstract: An anthelmintic composition suitable for pour-on application to animals for the treatment of helmintic infections which comprises from 0.5 to 40 parts by weight of an anthelmintic agent which is capable of penetrating the skin of the animal to be treated, 0.5 to 50 parts by weight of one or more spreading oils, 20 to 95 parts by weight of one or more suitable organic or inorganic solvents and 0 to 20 parts by weight of one or more auxiliaries.

Abstract: In an insecticidal article comprising an insecticidally effective amount of at least one volatile phosphoric or thiophosphoric acid ester and a solid polyurethane carrier material, the improvement wherein said polyurethane is an elastomeric polyurethane, whereby the article retains its activity over a long period of time. The polyurethane is formed of a polyisocyanate and a mixture of a long chain polyol and a short chain polyol and/or polyamine.

Abstract: O-Alkyl-O-chloromethylsulfonylphenyl-thionophosphonic acid esters of the formula ##STR1## in which R represents alkyl with 1 to 6 carbon atoms,R' represents alkyl with 1 to 6 carbon atoms or phenyl andR" represents hydrogen or halogen,Which possess insecticidal, acaricidal and nematicidal properties.

Abstract: A novel non-silver salt type photosensitive composition which comprises (A) N,N'-diphenyl-p-phenylenediamine as a color developing agent and tetramethylthiuram disulfide which unexpectedly functions rather as another color developing agent than as a storage stabilizer, (B) an organic halide compound as a photoactivator, (C) a salicylic acid derivative as a storage stabilizer for an unexposed photosensitive material, (D) thiourea which functions rather as an agent capable of functioning as both an anti-foggant at and after image formation and a contrasting agent than as a storage stabilizer, and (E) at least one member selected from the group consisting of (i) 2-methylindole, (ii) 2-mercaptothiazoline and (iii) p-diethylaminobenzaldehyde as a color tone adjusting agent.

Abstract: A linear saturated crystalline polyester of an acid moiety and a moiety of a dihydric alcohol, at least 40% of the acid moiety being a terephthalic acid moiety, said polyester containing moieties of 1,4-butanediol and 1,6-hexanediol, the ratio of the 1,4-butanediol moieties to 1,6-hexanediol moieties being 10:90 to 90:10; the use of such polyesters as a fusion coating mass, particularly in securing textile substances to a substrate.