Abstract: A machining unit having a rotary head that bears pivoting tools for machining a non-rotating part centered on a rotational axis of the head. The supports for the pivoting tools are mounted in the head to pivot about respective axes that are parallel to the rotational axis. Each support has a transversely arranged control lever. A control bushing is mounted coaxially on the machining unit and is arranged to slide axially and adopt a first, advanced position or a second, retracted position. At one end of the control bushing bearing is arranged an ellipsoidal control surface so as to cooperate with helical directing surfaces that are connected to the tools in order to execute a plunging movement of the tools. There is provided a phase-offset device, which is arranged to move the control bushing into two, three or four different predetermined angular positions around its axis.

Abstract: An installation tool assembly kit for a toilet, comprising an installation wrench and an installation nut, wherein the wrench is configured to be removably coupled to the nut via an upper aperture of the nut, the nut is configured to be threadingly coupled to a flange bolt via a lower aperture of the nut, and the nut upper aperture and nut lower aperture are concentrically aligned. The toilet may be a concealed trap, skirted toilet and/or a pressure-assist toilet.

Abstract: A method for forming a multi-component composite metallic tube, in particular, a bi-component metallic tube, comprises the steps of forming a coextrudable, multi-component billet including an inner component formed from a first metallic material, and an outer component formed from a second metallic material. Notably, explosive bonding is employed for bonding the first and second components to form a metallurgical bond at the interface thereof, thus forming the desired multi-component billet. The multi-component billet is subsequently heated, and coextruded to form a multi-component tubular structure, having a metallurgical bond at an interface between inner and outer layers of the composite metallic tube.

Abstract: The method uses heat flux sensors to determine the exchange area A between a reagent and housing containing the reagent, with the aim of determining the characteristics of the housing and the thermal reaction studied. The flux sensors are arranged at the housing in contact and non-contact zones of the housing with the reagent, such as to continuously determine in real time the precise exchange surface between the housing and the reagent as a proportion of the measurements taken by each flux sensor and in such a manner as to determine the heat exchange coefficient U between the housing and the reagent from the exchange area A and a measurement of the temperature Tr of the reagent and the wall of the housing respectively, particularly when thermostatted, as in the case of the application to a calorimeter.

Abstract: General purpose parallel computer, latency reduction MIMD, with multiple processors, and multiple memory address spaces, wherein processors (SPU) are redundantly replicated on each memory (M) bus (C-BUS) and, formed/connected as either master-active or slave-active of the bus and to interface a suitable communication structure (A-S) for transferring among themselves the process context and the bus control, in such a way to execute in turn a unique migrant sequential process per bus (C-BUS), and wherein each processor is also directly and tightly coupled with devoted private buses (P-P) to one corresponding processor of another one bus (C-BUS) in a way to form, between distinct buses (C-BUS), biprocessor pairs (DPU) capable of allowing communication and synchronization of the parallel migrant processes.

Abstract: A synthetic, crystalline, porous material is disclosed, together with the related preparation process. Such material of zeolitic nature containing oxides of silicon, titanium and gallium corresponds, in the calcined and anhydrous state, to the following empyrical formula:pHGaO.sub.2 .multidot.qTiO.sub.2 .multidot.SiO.sub.2,wherein p has a value greater than zero and smaller than or equal to 0.050, and q has a value greater than zero and smaller than or equal to 0.025, and the H.sup.+ of HGaO.sub.2 can be at least partially replaceable or replaced by cations.

Abstract: The machining unit is composed mainly of three essential elements which are the rotor, the phase displacement device and the tool drive mechanism. The rotor (100) includes a rotating shaft (1) and is equipped, for example, with four bores, extending parallel to the axis of rotation, into which the cutter carrier axles (9a, 9b, 9c and 9d) are supported. A plunge of the cutters into the material to be machined is controlled by the movement of a command sleeve (19) supporting, at its end, two surfaces (20a and 20b) of ellipsoidal form located to move, in conjunction with the inclined surfaces (14a, 14b, 14c and 14d), the command levers of the tool carrier. The command sleeve can occupy two extreme positions and one intermediary position. A phase displacement device includes a pulley (22) and a reverse pulley (25) mounted rotatably on a shaft (31) to allow angular phase change of the command sleeve (19) with respect to the spindle.

Abstract: A synthetic, crystalline, porous material is disclosed, together with the related preparation process. Such material of zeolitic nature containing oxides of silicon, titanium and gallium corresponds, in the calcined and anhydrous state, to the following empyrical formula:pHGaO.sub.2.qTiO.sub.2.SiO.sub.2,wherein p has a value greater than zero and smaller than or equal to 0.050, and q has a value greater than zero and smaller than or equal to 0.025, and the H.sup.+ of HGaO.sub.2 can be at least partially replaceable or replaced by cations.

Abstract: Zeolites having a pore diameter comprised within the range of from 5 to 12 .ANG. are bonded with amorphous oligomeric silica, by dispersing them in an aqueous solution of silica and alkylammonium hydroxide, and submitting the obtained suspension to a quick drying.

Abstract: A crystalline, porous, synthetic material is disclosed, together with its related preparation process.Such a material of zeolitic character, containing silicon, titanium and aluminum oxides, corresponds, in its calcined and anhydrous state, to the following empirical formula:p HAlO.sub.2.q TiO.sub.2.SiO.sub.2wherein p has a value greater than zero and lower than or equal to 0.050, q has a value greater than zero and lower than or equal to 0.025, and the H.sup.+ of HAlO.sub.2 can be at least partly replaceable or replaced by cations.

Abstract: The invention discloses a catalyst on the basis of silicon and titanium having the form of microspheres and constituted by oligomeric silica and by titanium-silica-lite crystals having an oligomeric silica/titanium-silicalite molar ratio comprised within the range of from 0.05 to 0.11, wherein the crystals of titanium-silicalite are encaged by means of Si-O-Si bridges.

Abstract: The invention discloses a catalyst on the basis of silicon and titanium having the form of microspheres and constituted by oligomeric silica and by titanium-silicalite crystals having an oligomeric silica/titanium-silicalite molar ratio comprised within the range of from 0.05 to 0.11, wherein the crystals of titanium-silicalite are encaged by means of Si--O--Si bridges.

Abstract: A process for the epoxidation of olefinic compounds, consisting of reacting said compounds with hydrogen peroxide either introduced as such or produced by substances capable of generating it under the reaction conditions, in the presence of synthetic zeolites containing titanium atoms, of general formula:xTiO.sub.2.(1-x)SiO.sub.2,where x lies between 0.0001 and 0.04, and possibly in the presence of one or more solvents, operating at a temperature of between 0.degree. and 150.degree. C., and at a pressure of between 1 and 100 ata.

Abstract: The invention discloses a catalyst on the basis of silicon and titanium having the form of microspheres and constituted by oligomeric silica and by titanium-silicalite crystals having an oligomeric silica/titanium-silicalite molar ratio comprised within the range of from 0.05 to 0.11, wherein the crystals of titanium-silicalite are encaged by means of Si-O-Si bridges.

Abstract: A process for oxidizing primary and/or secondary alcohols to the corresponding aldehyde and/or ketone derivatives, consisting of reacting said alcohols with an aqueous solution of hydrogen peroxide in the presence of synthetic zeolites containing titanium atoms, of general formula:xTiO.sub.2.(1-x)SiO.sub.2,where x lies between 0.0001 and 0.04, and possibly in the presence of one or more solvents, operating at a temperature of between 20.degree. and 100.degree. C.

Abstract: A process for the hydroxylation of aromatic hydrocarbons by hydrogen peroxide, consisting in reacting said compounds in the presence of synthetic zeolites which contain heteroatoms, both replaced and exchanged.The reaction is carried out at a temperature comprised between 80.degree. C. and 120.degree. C. and in the presence of the hydrocarbon only or in the presence of a solvent which permits, at least partially, to admix the aromatic hydrocarbon with the hydrogen peroxide.

Abstract: A method is disclosed for preparing esters by reacting an olefin with an acid in the presence of oxygen and a catalyst system, the improvement consisting in that the catalyst system is a compound of tin or cerium, used in the presence of iodine or of a iodine-yielding compound. High productivities are achieved and no pollution problems are to be solved.