The cuvette is formed of a transparent plastics, with a tubular body (12) having 2 parallel flat sides (13, 14), closed at one end by a semi-cylindrical base (16), with a radially projecting tongue containing symmetrical recesses at the open end of each flat side. The sidewalls (27, 28) of the tubular body extending between the flat sides each have a lower part projecting from the base, stepped in...

A process is provided to inhibit trimerization catalyst system activity which comprises the sequential steps of contacting a reactor effluent stream with alcohol; removing any desired olefin products; adding an aqueous base to the non-olefin portion; removing a precipitate; separating the aqueous and organic phases; and adding an acid to the aqueous phase.

Le brouilleur de polarisation de ce système reçoit une onde modulée en amplitude (WP). Il comporte un polariseur (34) et un modulateur de phase électro-optique (26) biréfringent. La tension d'une source d'excitation (36) commande ce modulateur. Elle varie d'une manière récurrente propre à imposer un balayage angulaire sur la sphère de Poincaré à la polarisation de l'onde (WE) sortant de ce modulat...

In a digitally controlled amplifier circuit a dc power source is modulated by an oscillator signal for producing a reference square wave signal. A sawtooth signal, double the frequency of the reference signal and synchronized therewith, is compared with a variable input signal to be amplified. When the sawtooth exceeds the input signal a phase shifted version of the reference signal, shifted in ph...

A method for reducing NOx produced by the burning of fuels includes providing a hydrocarbon and nitrogen mixture to a plasma arc generator for producing NOx reducing precursors which are, in turn, provided near the burning of the fuel for reacting and reducing NOx emissions. These precursors include N, H, HCN, CHi and NHi, etc.

My device relates to a device to clean sheaves, such as those used in the operation of elevators. A particular application of my device is as a sheave cleaning tool. The present invention, the sheave cleaning tool, comprises of a mounting plate and a blade plate attached by a hinge. A handle is welded to the blade plate to enable the the operator to raise and lower the blade, altering the level of...

PCT No. PCT/SE95/00169 Sec. 371 Date Jul. 19, 1996 Sec. 102(e) Date Jul. 19, 1996 PCT Filed Feb. 17, 1995 PCT Pub. No. WO95/22306 PCT Pub. Date Aug. 24, 1995The present invention discloses a disposable absorbent pant or diaper having a crotch portion and front and back portions adjacent thereto which are joined to form a waist portion surrounding the waist of the user. The waist portion is circumf...

PCT No. PCT/SE95/00169 Sec. 371 Date Jul. 19, 1996 Sec. 102(e) Date Jul. 19, 1996 PCT Filed Feb. 17, 1995 PCT Pub. No. WO95/22306 PCT Pub. Date Aug. 24, 1995The present invention discloses a disposable absorbent pant or diaper having a crotch portion and front and back portions adjacent thereto which are joined to form a waist portion surrounding the waist of the user. The waist portion is circumf...

A body conforming absorbent article, such as a sanitary napkin, is disclosed which has preferential bending zones and a structural zone. The bending zones cause the article to preferentially bend at locations anterior and posterior to the labia majora so as to keep a relatively planar configuration in the perineal area. The structural zone is resistant to wet collapse so that the central portion o...

A ventilation flap (1) for a roof has a plastic body (2)with a wedge-shaped plastic foam sealing element (9). The faces (11,12), esp. the outer face (11) are covered in a pore-free skin (14) of the same material and integral with the seal body (10). Also claimed is a mfg. process of a ventilation flap.

The invention relates to ventilator cover (1) for exhaust ventilation of roofs in the ridge, hip or arris area, with preferably a plastic ventilator cover body (2) and sealing element (9), the sealing element (9) having a shape approximating that of a wedge in cross section and a sealing element body (10) which consists of plastic foam. To improve sealing properties and to increase the service lif...

A coexecutor for executing functions offloaded from central processors (CPs) in a data processing system, as requested by one or more executing control programs, which include a host operating system (host OS), and subsystem programs and applications executing under the host OS. The offloaded functions are embodied in code modules. Code modules execute in the coexecutor in parallel with non-offloa...

A tambour-type panel of sections movable in a U-shaped track system from a side location in a housing to a location in the path of light. The panel sections are constructed to diffuse light passing therethrough. Each section of the diffusing panel has a texturing which diffuses the light with different degrees.

An ENP belt for use in the press-section of a papermaking machine is disclosed which comprises a sheet-like body part (11) having integrally formed machine-direction ribs (12) extending outwardly from the surface therefrom, there being reinforcing yarns (16) in register with respective ones of some at least of the said ribs (12) and at least partially located therein. Cross machine direction ribs ...

PCT No. PCT/GB88/00875 Sec. 371 Date Mar. 21, 1990 Sec. 102(e) Date Mar. 21, 1990 PCT Filed Oct. 17, 1988 PCT Pub. No. WO89/03895 PCT Pub. Date May 5, 1989.A squeeze formed aluminum-silicon cylinder liner for an internal combustion engine is produced from a melt consisting essentially of the following composition by weight: silicon 14% to 16%, copper 1.9% to 2.2%, nickel 1.0% to 1.4%, magnesium of...

A new sol compsn. which comprises:- oxide particles of a tetravalent metal; an amphiphilic acid system, and a diluent in which the particles have a d90 no more than 200 nm, and the sol has at least one of the following characteristics:- the oxide particles are in the form of crystallite agglomerates (CeO2) which the crystallites have a d80 (pref. d90), measured by photometric counting (HR transmis...

Vertical lifting device for movable stages, comprising a pair of articulated parallelograms, arranged in a continuation of each other, one at the base, hinged to the frame of the cart, and connected to an actuator, and one at the end, combined with the stage, hinged to the preceding one, and being part of a kinematic mechanism comprising a pair of struts and a pair of elbow levers, such as can lif...

Device of compensated steering, comprising an assembly of gears mounted on a movable plate, and connected to the steering wheels via a positive flexible transmission, and a set of articulated shafts associated with said movable plate and the steering controls, designed to make the angular rotation of the axles of the steering wheels vary in differential manner according to the position of the stee...

Programmable telephone device for disabling of undesirable outgoing calls, self-powered by the telephone line and installable at the user's premises. The device is comprised of a mechanical container of thermoplastic material and an electronic circuit contained therein, making it possible to memorise and subsequently block a maximum of 100 telephone prefixes. The memorising of the undesirable pref...

A vehicle, preferably a public transport vehicle, transports an apparatus providing for intake of polluted air, which is purified of carbon, nitrogen and sulphur oxides, unburned matter and particulate, the impurities being collected and disposed of after a working cycle of around 10 hours. The energy consumption is negligible when compared with the volume of air treated.