Abstract: A pivotable delineator pole is disclosed, particularly for skiing range courses, comprising a disc arranged between the tip and the pole, the ends of the tip and the pole being inserted on projections jutting from the opposite faces of said disc, springs acting between said pole and said tip being connected to both the pole and the disc, a clevis being connected at either end to the projections of said disc.

Abstract: In a diamond impregnated bit scourer particles in the form of silicon carbide are added to the matrix. The mesh size of the silicon carbide is less than that of diamond and the concentration preferably about 40, if the diamond concentration is 40.

Abstract: A telescopic tube, comprising a plurality of relatively sliding tube members (10, 11) fitted within each other. Along a major part (L.sub.0) of their length, the tube members are straight cylindrical tubes whose ends are provided with conical bulges (14, 15), so that one end is provided with an external cone (14) which diverges towards the end and the other end is provided with an internal cone (15) which converges towards the end. The latter end is surrounded by an external annular flange (16). The external and internal conical bulges (14) and (15) of individual tube members (10) and (11) are wedged against each other with friction engagement and keep the telescopic tube in the extended condition.

Abstract: In an improved motor control system for a pulse width modulated synchronous brushless motor, means for adaptively controlling the "torque angle", i.e. the angle between the rotating magnetic field created by the stator windings and the rotor field created by the permanent magnets on the rotor, is provided. The relationship between the two magnetic fields is controlled as a function of load and speed to provide the optimum operating point at all times. Controlling the torque angle effectively varies the back EMF constant K.sub.e (V/RPM), and the torque constant K.sub.+ (torque/ampere) of the motor.

Abstract: The gaseous mixture to be split is dehydrated and condensed under a high pressure by sending the gases, separated in a first separator (4), to the first stage of an expansion turbine (16) and the condensates are sent to a fractionating column (49), the gases exiting the first stage of the turbine are mixed with the gases exiting a second separator (19), said mixture being sent to a third separator (26) the bottom liquid whereof is sent to the column (49), and the separated gas is mixed with the head gas of the column (49), whereafter it is cooled and sent to a medium-pressure fourth separator (32). The gas coming from the latter separator (32) feeds the second stage of the turbine (16) while the condensate is admixed with the gas discharged from the second stage and sent to an ultimate low-pressure separator (41) wherefrom the condensate is sent to the column (49) head and the residual gas is cooled and compressed (43, 44), the condensates being recovered from the bottom of the column (49).

Abstract: Novel composite pigments containing both organic and inorganic portions have been produced.These pigments consist of an inorganic binary titanium dioxide/aluminum hydrate component, in a percent quantity comprised between 70% and 95% by weight, the remaining organic component amounting to between 5% and 30% by weight, consisting of an organic dye selected from the group consisting of azoic and quinophtalonic compounds, containing in their structure at least one carboxylic and/or sulphonic, substantially salified, acid function.The pigments are obtained according to a co-precipitation process, under substantially alkaline controlled pH conditions, of the acid organic dye together with the aluminum hydroxide (hydrated aluminum), by acidification of a solution and/or an aqueous dispersion of the acid organic dye in sodium aluminate, in the presence of titanium dioxide, at from 40.degree. C. to about 80.degree. C.

Abstract: A flare tip has an inner tube having an inlet and outlet for an air supply and an outer co-axial tube spaced apart from the inner tube to form an annular gap. The annular gap has an inlet for a fuel gas supply and the upper part of the inner tube has a plurality of channels. The channels are shaped to encourage upward and inward flow of fuel gas so as to mix with air issuing from the outlet of the inner tube.

Abstract: A resinous protective coating useful in the manufacture of printed circuit boards with circuit patterns having a resolution of at least 0.25 mm lines and spaces thereon. The protective coating comprises resins dissolved in solvents, wherein the coating upon being subjected to heat goes from a high viscosity solution to a gel and then to a solid or from a soft "gel-like" state into a solid. The protective coating is resistant to copper electroplating baths, adheres to insulating substrates, adhesive coated base materials as well as metallic substrates and is capable of withstanding the thermal shock of dip soldering.

Abstract: A high pressure gas flare using the Coanda effect has a noise attenuator surrounding the high pressure gas outlet slot. The noise attenuator is in the form of one or more upwardly diverging frusto-conical shields which may be spaced apart or closed with the body of the flare. The attenuator is particularly useful for steam driven flares.

Abstract: A hand held device with built-in motor for rotational drive of small tools. The hand held device includes an outer housing consisting of a larger diameter rear part which contains an electric driving motor, an intermediate part of small diameter which contains motion transmitting means, and a front part in which is mounted a holder for the tool to be driven. The electric driving motor is a brushless motor having a rotor encapsulated in a sealed insulating enclosure and includes permanent magnets covered with a layer of conducting metal and a stator made up of multi-phase winding coils embedded in a molded plastic material. The motion transmission means consists of non-contacting magnetic coupling means.

Abstract: A substrate coating of a ferromagnetic alloy of a rare earth-transition element mixture is prepared by a hollow cathode sputtering deposition method to produce near single domain films on various substrates.

Abstract: Fuel composition comprises (a) 15 to 60% be weight, preferably 40 to 55%, of a friable solid fuel, e.g. coal, (b) a stabilizing additive composition and (c) a fuel oil. The additive comprises the combination of a polymer containing functional groups, e.g., maleinized polybutadiene, and a surfactant. The composition is suitable for use as a liquid fuel for industrial burners.

Abstract: A system for rapidly soldering wire to terminal pads of a printed circuit board. A soldering tool is heated to a high temperature above 1000 degrees F., and preferably between 1600 to 2000 degrees F., and has a predetermined effective mass for holding a quantum of heat just sufficient to make an effective solder joint over a broad range of terminal pad conditions.

Abstract: A method for the production by resin injection moulding of fibre reinforced articles from fibrous material bonded in a curable matrix material which articles comprise two or more spokes (2, 3, 4) extending from a hub portion (1), each spoke (2, 3, 4) being in the form of a loop is characterized in that the fibrous material is arranged such that at least as many rovings (13, 14, 15 or 22, 23, 24) of the fibrous material as there are spokes (2, 3, 4) extend in continuous paths from the hub portion (1) around each of the spokes, each of the rovings being overlaid for at least part of its length by each of the other rovings. The method is suitable for the production of intricately shaped articles which are to be highly stressed for example by being subjected to high rotational speeds.

Abstract: Analgesia-effecting 5-hydroxytryptophan derivatives are disclosed of the formulae: ##STR1## wherein R is selected from the group consisting of C.sub.2 -C.sub.16 alkyl, C.sub.3 -C.sub.8 cycloalkyl, C.sub.2 -C.sub.16 alkenyl, C.sub.2 -C.sub.16 alkynyl, aryl containing up to 14 carbon atoms, and arylalkyl containing up to 20 carbon atoms;R.sup.1 and R.sup.1a are each H or methyl;R.sup.2 and R.sup.2a are each H or R, as defined above;R.sup.3 and R.sup.3a are each H or alkyl containing from 1 to 4 carbons;R.sup.4 and R.sup.4a are each H or alkyl containing from 1 to 4 carbons;and their non-toxic, pharmacologically acceptable acid addition salts.

Abstract: A brushless electric micromotor comprised of a rotor, a shaft and a tube-like part and permanent magnets rotatably mounted and hermetically sealed in a rotor housing, said shaft being supported in bearings. The permanent magnets have their co-axial surfaces coated with a layer of an electrically conductive metal. The micromotor further comprises a stator co-axially surrounding the rotor housing and comprising field windings regularly arranged with equal angular distances in the stator housing made of magnetic material.

Abstract: Pyrethroid type insecticides described having the formula: ##STR1## wherein A=CF.sub.3 -C.dbd.C-, ##STR2## (X=H, F, Cl, Br: Y=Cl, Br) ##STR3## (group ##STR4## is bound to the hererocyclic ring in position 2 or 3) ##STR5## --CH.sub.2 --C.tbd.C--CH.sub.2 --R.sup.9 ; wherein:R.sup.1 =H, CN, C.tbd.CHR.sup.2 =3-phenoxy, 3-benzyl, 4-allyl, 4-propargyl.R.sup.3 =H, alkyl bound to the heterocyclic ring in position 3 or 2;R.sup.4 =(in position 4 or 5 of the heterocyclic ring)=benzyl, benzoyl, phenoxy, allyl, propargyl;Y=O, SR.sup.5 and R.sup.6 =alkyl C.sub.1 -C.sub.3, or R.sup.5 and R.sup.6 together form an orthocondensed aromatic, heteroaromatic or aliphatic, saturated or unsaturated ring;R.sup.7 and R.sup.8 (equal to or different from each other)=H, halogen, CH.sub.3 ; R.sup.9 =phenyl, vinyl, vinyl substituted, phenoxy,Compounds of general formula I are endowed with a high insecticide and acaricide activity.

Abstract: A filtering method and apparatus for discriminating targets from noise in space-time data consisting of a plurality of binary data frames, each containing an equal number of points, are disclosed. Noise filtering for target detection is performed by recursively determining whether the points of a sequence of M of the binary data frames form at least one continuous string, or at the next highest level of discrimination, monotonic continuous string by logically comparing each binary data frame with the two binary data frames which precede and follow it on a point by point basis.

Abstract: This invention pertains to a fish conservation system for large water intake facilities, the system having one or more operating module. Each module includes a barrier screen or set of barrier screens and fish bypassing conduits located adjacent to the barrier screens. A reciprocating fish-herding screen or set of such reciprocating screens herds fish into the bypassing conduits and away from the barrier screens, against which the fish would otherwise be drawn and killed.

Abstract: A process for the production of a mixture of methanol and higher alcohols of "fuel grade" from CO and H.sub.2.To reduce the water content in the mixture coming from the synthesis reactor of the synthesis of the alcohols, the reaction product is cooled down and is fed to a secondary reactor wherein the conversion reactionCO+H.sub.2 O.revreaction.CO.sub.2 +H.sub.2is carried on in conditions near to equilibrium.The further product of reaction is cooled in a more thorough manner so as to obtain a liquid phase constituted by the "fuel grade" mixture of alcohols and a gaseous phase which after the discharge of the inert substances and after elimination of the CO.sub.2 is recycled to the synthesis reactor.In the secondary conversion reactor operation is carried out with a temperature comprised between 150.degree. C. and 250.degree. C., at a pressure equal to that of the synthesis reactor and in the presence of a copper catalyst.