Abstract: Solution of ethylauramine hydrochloride in thiodiglycol; process for the preparation of such a solution in which dry ethylauramine hydrochloride, without water of crystallisation, is dissolved in thiodiglycol and process of colouration in which the colouring agent is such a solution.

Abstract: This invention provides an improved valve closing means for a refilling valve in flushing cisterns equipped with an overflow and refilling and flushing valves adapted to be opened by a lift stem, said valve closing means being mounted in said overflow and movable to an upper position for opening said valves by means of said lift stem and to a lower position for abrupt closure of the refilling valve by water flowing into the overflow when the cistern is refilled.

Abstract: Apparatus for displaying a corrected value of the total shear force in a given cross-section of a ship, comprising means for generating a signal representing the total shear force in the selected cross-section and means for modifying said signal in relation to the cargo forward and aft of said cross-section.

Abstract: A fork lift truck comprising a chassis carried by wheels, power and transmission means, steering and control means, and a hydraulic fork lift. The chassis is in the shape of an arch, the highest point of which is located between the wheels and above the level thereof. The power means is positioned between the wheels and underneath the highest point of the arch, while the driver's seat and the steering and control means are positioned above said arch and are horizontally rotatable as a unit.

Abstract: A trimming mechanism for an overedge sewing machine includes an elongated cutter arm driven in oscillatory movement to drive a movable cutting blade which cooperates with a fixed cutting blade to trim material passed through the sewing machine. An improved cutting blade mounting means is provided for simultaneously mounting the movable cutter blade on the driven cutter arm and automatically aligning the movable blade for cooperation with the fixed blade.

Abstract: Thin material such as hair or paper is severed by a singeing process using the heated and opposed edges of two thin strips of metal with the edges closely spaced apart to form a slot and with the edges heated by high frequency electrical current or currents flowing along such strips and exhibiting therewith and therebetween skin and proximity effects, and by moving such strips relative to such material so that the material to be singed or severed enters such slot and is therein singed to effect severance by such singeing.

Abstract: Process for dyeing, by exhaustion, textile fibres of basic character with anionic dyestuffs in a solvent medium in the presence or absence of water wherein the dyebath is a homogeneous ionising liquid medium and the cations of the bath are replaced by H.sup.+ protons in the course of the dyeing, the latter being effected at a temperature equal to or less than 80.degree.C. and apparatus for use of this process which comprises apparatus for dyeing according to the process claimed in claim 1 which comprises a dyeing vessel for dyeing with solvents, a circuit for removing the dyebath continuously or by fractions, means for substituting the cations of the bath with H.sup.+ protons, a recycling circuit ensuring the reintroduction into the vessel of the bath from which all or part of its cations have been removed, means for regulating the flow and means for regulating the temperature.

Abstract: This invention relates to a technique for improving the properties of the so-called methyl methacrylate lacquers prepared from polymers containing methyl methacrylate as a main monomer.That is, a liquid coating composition, which contains as a main component a polymer obtained by polymerization of methyl methacrylate alone or of a monomer mixture comprising 60 - 98 % by weight of methyl methacrylate and 2 - 40 % by weight of other monomer copolymerizable therewith, is ordinarily called as a methyl methacrylate lacquer.

Abstract: A blowout preventing device is disclosed for attachment to vehicle wheels which have axially-elongated slots for receiving inner tube inflation stems. The device comprises a rigid filler piece which has a central portion for filling the slot and a circumferentially enlarged outer retainer portion which prevents radially inward displacement of the filler piece. An inner retainer means clamps the central portion to the inner face of the rim to prevent the device from falling into the tire in the event of deflation of the inner tube. Associated with the inner retainer means is a gripping means for engaging an inflation stem to prevent it from falling into the tire upon deflation.

Abstract: A process for the preparation of an optical brightening agent falling within the formula: ##SPC1##In which R represents an alkyl group containing 1 to 4 carbon atoms, R.sub.1 and R.sub.2 each represent a hydrogen atom, an alkyl group containing 1 to 4 carbon atoms or a phenyl group either unsubstituted or substituted by at least one alkyl group containing 1 to 4 carbon atoms, R.sub.3 and R.sub.4 each represent an alkyl group containing 1 to 4 carbon atoms and A.sup.- represents a monovalent anion which comprises reacting a compound of the formula: ##SPC2##In which R.sub.1, R.sub.2, R.sub.3, R.sub.4, and A.sup.- have the meanings given above, with an alcoholate of the formula RO-Me in which R represents an alkyl group containing 1 to 4 carbon atoms and Me is an alkali metal; compounds falling within the formula: ##SPC3##Wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and A.sup.- have the meanings given above.

Abstract: Process for the preparation of an amino-pyrazine falling within the formula: ##SPC1##In which R.sub.1 and R.sub.2 each represent a hydrogen atom, or an alkyl or aryl group, or together with the carbon atoms of the pyrazine ring form a cyclic hydrocarbon having 5 to 7 carbon atoms, and X represents a cyano, carboxy, carbonamido, alkoxy-carbonyl or aryloxycarbonyl group which comprises subjecting a 2-aza-1,3-butadiene of the general formula: ##EQU1## wherein Z and Zi each represent an alkyl group or together with the nitrogen atom form a heterocyclic compound possibly containing another hetero atom to the action of ammonia and reacting the 4-amino-2-aza-1,3-butadiene of formula ##EQU2## thus obtained with a basic agent: novel compounds of formula VIII in which R.sub.1 and R.sub.2 each represent a different alkyl or aryl group or together with the carbon atoms of the pyrazine ring form a cyclic hydrocarbon containing 5 to 7 carbon atoms: intermediate compounds of formula: ##EQU3## wherein X, R.sub.1 and R.sub.