Functional fluids comprising an oil of lubricating viscosity, the reaction prod-uct of an amine and a sulfonic acid, and at least one sulfur-containing com-pound of the structure (RX)3P=X where X is sulfur or oxygen exhibit good anti-rust and antiwear performance.

In sequential object oriented languages such as C++, a mechanism is provided to permit multiple asynchronous processing operations without compiler modifications, language extensions or special pre-processing. A specially adapted pointer converts a procedure call into an asynchronous task thread, while returning an expected response to permit a calling program to continue processing. The returned ...

Dispositif de commande de la polarisation d'un amplificateur. L'invention concerne un dispositif de commande de la polarisation d'un amplificateur (1) du type recevant un signal d'entrée à amplifier (2) et un signal de polarisation (4), et délivrant un signal de sortie amplifié (3), ledit amplificateur (1) possédant au moins deux valeurs distinctes de puissance de sortie possibles et émetttant led...

The ice stud set comprises two ice studs of like shape, each stud comprising an elongated hand grip and a pointed stud part extending in the longitudinal direction of the hand grip. A cavity in the ice stud protects the stud part against contact with the other ice stud. The ice stud set incorporates components in the one or both ice studs for holding together the ice studs, pref. with the studs di...

A hockey goaltender's pad is described, in which the upper segment of each side roll is sewn with darts which facilitate flexing of the rolls. As the knee is bent, the darts open, thus in effect increasing the length of the outside of the roll in response to the tensile load there, so that the outside of the roll does not restrict the flexing. As the leg is straightened again, the darts close.

The present invention relates to a dental articulator (1), and more particularly to a device permitting to precisely reproduce movements of the mandible with respect to the maxilla, useful in the production of orthodontic models and dental casts and in the correction of occlusions of natural dentition. Said articulator (1) comprises horizontal baseplate (2), having a front and a rear side, provide...

Sensor of relative humidity, essentially comprised of a sensitive substrate 1, open at the lateral faces 4a, 4b, of any desired shape and dimensions, lateral electrodes 2, 3, applied to the parallel faces (capacitor type), placed at appropriate distance (any given electrode paste can be used, as long as it is conductive), and method of isostatic moulding and sintering of microporous powders of alp...

A cutting device, for gardening and horticulture, includes: two identical blades (2, 2'), each constituted by an elongated plate-like body which has a longitudinal axis (a, a') and two asymmetrical lateral cutting regions; guiding strips (14, 15) for keeping the blades (2, 2') partially superimposed and in mutual contact so that they can slide longitudinally; and a head (4) for connection to an ex...

This invention concerns a procedure for facing support panels for use in creating furnishing articles with decorative sheets, as well as the machine which permits the automatic implementation of the procedure.

This invention concerns a panel for use for facing the internal walls of road tunnels, consisting of a prefabricated article in reinforced concrete which has a slight curvature towards the top and which incorporates, over the entire surface of its internal concave face, a layer of tiles in ceramic or other equivalent material.

Speed variator with variable diameter pulley, particularly for washing machines for adjusting the rotation action of the drum to the various washing and centrifugation speeds. Variator comprising a drive pulley 26 and a driven pulley 27 associated with the drive motor 24 and drum 23 of the machine and connected by a transmission V belt 25. The drive pulley 26 is of variable diameter and is formed ...

Azacyclic derivatives of formula (I) in which each of X and Y is independently CH or N; RCO is an acyl group in which the group R contains a substituted or unsubstituted carbocyclic aromatic or heterocyclic aromatic ring; each of R1 and R2, which may be the same or different, is C1-6 alkyl optionally substituted by at least one of halogen, hydroxy, C1-6 alkoxy, acyloxy, thiol, C1-6 alkylthio, alcy...

In a terminal for a high-voltage electric cable the electric cable is broken off at a predetermined height from its entering the terminal and the electric connection is carried out as far as the overhead line is reached by a rigid conductor element; the rigid conductor element, preferably a copper pipe, is provided with an elastomeric ribbed coating and is supported by an insulating base preferabl...

The function of the automatic device presented is to automatically load industrial vehicles such as trucks, trailers and semitrailers. The loading units envisaged are pallets or containers with pallet type supports. The loading system works by forking and is possible on all the sides. There are three loading variants for 800, 1200 and mixed sides. Essential features are rapidity, precision and sav...

A catalytic system to polymerize diolefinic monomers consists of a lanthanide salt, an organometallic compound of a metal belonging to groups I, II and III of the periodic table of elements and an organometallic compound of boron. The polymers obtained are characterized in that they have a high degree of 1,4 chain units and ratio between 1.4-cis/1,4-trans units which can vary as desired, and also ...

Bitumens modified by polymeric compositions comprising: 1) a polyolefin having a high cristallinity selected from the group consisting of high density polyethylene (HDPE), isotactic polypropylene (PPi) and mixtures thereof; and 2) at least a polymer, selected from the group consisting of (co)polymers of ethylene with propylene (EPM or EPDM), amorphous polypropylene (PPa), EVA, low density polyet...

Process for the skeleton isomerization of linear olefins, preferably n-butenes or n-pentenes, which consists in putting said olefins in contact with a catalyst comprising alumina on whose surface boron oxide is deposited in a quantity which is lower than 2.1x10<-><4> g/m<2> of the surface of the alumina.

Integrated process for the production of ter-butyl alkyl ethers which comprises feeding a C4 refinery flow to an etherification reactor and recycling the remaining flow to the same reactor after treatment in an isomerisation section to convert the butanes to isobutene. Between the etherification reactor and the isomerisation section there is a section for absorption on molecular sieves in order to...