The method is effected using appts. having a mass transfer contacting device (4) supplied with a wash liq (7) and a feed (1) contg. F cpds . Liq leaving the device is passed to a first rectification column (26). In one aspect a second rectification column (49) receives liq. from the bottom of the first column. F cpds are recovered from the upper part of the or both columns. The appts. is also clai...

Aqueous emulsions of grafted polymer compositions are provided. The grafted component of these compositions has two or more polymeric substituents. The aqueous emulsions of grafted polymer compositions are particularly useful as cement modifiers.

A ceiling mounted, recessed, wallwash light fixture includes a reflector having an internal reflecting surface. A wallwash segment of that reflecting surface is defined by vertically adjacent reflecting faces each arranged so that an effective lowest point of brightness seen by the reflecting face is reflected along a line passing below an opposing portion of a bottom edge of the reflector. The wa...

A container for elastic solid material, comprising connecting means for detachably connecting adjacent walls (1,3) of the container. The connecting means include a protrusion (9) attached to a first wall (9) and a guiding element (11) attached to a second wall (3) adjacent to the first wall (1). The guiding element (11) is provided with an opening through which the protrusion (9) is extendable. A ...

Arrangement for integrated circuits (5) which are positioned on a support member (1) provided with a number of connections between components in an electric circuit. The support member is provided with a device (2, 4) that conducts heat away from an integrated circuit. Connection paths in the area of said integrated circuit (5) is arranged in the form of a connecting component (8) which is support...

Arrangement for integrated circuits (5) which are positioned on a support member (1) provided with a number of connections between components in an electric circuit. The support member is provided with a device (2, 4) that conducts heat away from an integrated circuit. Connection paths in the area of said integrated circuit (5) is arranged in the form of a connecting component (8) which is support...

A process for the production of a structured composite pigmentary material in the form of a dispersion comprises mixing an aqueous dispersion of inorganic pigmentary particles and an aqueous dispersion of polyvinyl chloride (PVC) particles. The inorganic pigment particles carry a positive surface charge and the PVC particles carry a negative surface charge and the particles in the composite are he...

A process for the production of a structured composite pigmentary material in the form of a dispersion comprises mixing an aqueous dispersion of inorganic pigmentary particles and an aqueous dispersion of polyvinyl chloride (PVC) particles. The inorganic pigment particles carry a positive surface charge and the PVC particles carry a negative surface charge and the particles in the composite are he...

This invention relates to equipment for tracing and/or cutting, as a template having a variable diameter. This arrangement is particularly suitable for circular cutting, in particular for plasma or oxyacetylene or electrode cutting of sheets and metals. This object is achieved by causing the plates, the inner of which with the eccentric hole determines the diameter of the cut, to rotate.

Casing rotating device (10) for drilling machines, the device being associated and coaxial with a device (13) for the rotation of a drilling tool for the obtaining of foundation piles, the drilling tool rotation device (13) having its own motor, the rotary casing-oscillator device (10) being located in a position below the drilling tool rotation device (13) and being associated with a reduction-ge...

Frame of the type comprising an internal chamber in the frame C which is enclosed by a portion of external section 1 and a portion of internal section 24, characterised in that: - at least one hole 110 is made in external section 1 to place the said internal chamber C in communication with the exterior, - the opening of said hole 110 is adjustable 171.

Frame in which the external section is a substantially loadbearing metal section 11-22 which is joined to an internal section 14-24 by hooking or engaging attachment, characterised in that an intermediate section of plastics material which is also structurally loadbearing, acting as an intermediate insulator 12-25, is provided between outer section 11-22 and inner section 14-24.

PCT No. PCT/GB90/01172 Sec. 371 Date Mar. 2, 1992 Sec. 102(e) Date Mar. 2, 1992 PCT Filed Jul. 27, 1990 PCT Pub. No. WO91/01785 PCT Pub. Date Feb. 21, 1991.An evaporator in the form of a vacuum pan has partitions (38) providing a plurality of compartments (42, 46) between an inlet and outlet. The compartments increase in volume from the inlet to the outlet, each compartment having at least one pai...

In a circuit arrangement for optical frequency conversion, having a switchable input filter arrangement with a wavelength channel filter of a wavelength multiplexer/demultiplexer which is formed using a plurality of such channel filters, which filter can be connected via a 1:n fibre switch to an input fibre and is passed through by the input signal in the multiplex operating direction, having a fr...

The invention relates to a device for transmitting waste energy to the ground circuit of a heat pump. The device is composed of a liquid circuit (10, 11) which collects heat from at least one or several energy storing units (3), an earth heat pump (1), a ground circuit (5) and an energy storing unit like a liquid tank, a reservoir or similar. At least one energy source, like the heat recovery syst...

The present invention relates to a method for removing hair from a localized area of a patient's skin through surface electrolysis. The method of the present invention is noninvasive in that the patient's skin is never penetrated by a needle or the like. In a preferred method of the invention, a ground terminal is placed on the skin proximate a selected localized treatment area from which hair is ...

The telecommunication system includes a detector (A) which receives signals from a subscriber's phone connected to the network. A link device (B) connects two telephone lines together and a regulator (C) controls the link device according to the detected signal, as well as simultaneously initiating several telephone calls in response to a signal received from one telephone line. The system can be ...

In the process for bleaching cellulosic pulp with peroxide, using at least one pressurised bleaching vessel: (a) peroxide is blended with the pulp to form an intimate mixt.; (b) the mixt. is added to the pressurised bleaching vessel where the pulp is bleached in a superatmospheric pressure to form oxygen and reaction gases; (c) at least 20 % of the oxygen and reaction gases are removed from the mi...