A method of producing a foamy slag in which the projected flame produced by burning fuel, for instance methane, within an oxidant is directed onto the slag so that the flame impinges on the slag, thereby to heat the foamy slag. Carbon containing particles are entrained in the flame so that the particles are heated by the flame and are projected into the slag to form and maintain a foamy slag. The ...

The present invention comprises a process for the asymmetric synthesis of florfenicol, thiamphenicol or chloramphenicol, from a derivative of trans-cinnamic acid, comprising the steps: (a) converting the acid to an acid chloride using a chlorinating agent, and reducing the acid chloride to a trans allylic alcohol with a reducing agent; (b) asymmetrically epoxidizing the allylic alcohol of step (a)...

A method of driving a matrix-type liquid crystal display device utilizing a liquid crystal layer sandwiched between a plurality of scanning electrodes and a plurality of signal electrodes extending generally perpendicular to the scanning electrodes, which comprises the steps of erasing a display screen by bringing it into either a light transmitting state or a light scattering state, writing by wh...

Wear parts of machinery have embedded within them optically recognisable elements, exposure of which is an indication of the state of wear. Corresponding wear parts, as well as wearing plates which slide on top of each other each have at least one element for indicating a state of wear. In the non-wearing reverse side of the wearing plates are embedded elements of material of up to the hardren of ...

The plant (1) for producing a filled cell insulation material has a first defibering shredder (2) with feed (12) for a fibrous filler material, which is reduced to separate fibres through the triple wire brush roller device (9-11). The fibres are air transported (P10,P11) to a mixer (4) and coated with a bonding agent. The coated fibres are further carried (P12) to a second shredder (5) which disc...

An apparatus for separating e.g., a fibrin monomer from blood includes a container (110) with a reaction chamber defined by an outer wall for receiving plasma and a means for supplying the chamber with an agent for converting the fibrinogen content of the plasma into a non-cross-linked fibrin polymer. The apparatus includes a device for centrifuging the plasma and the agent within the chamber to a...

A battery paste for a lead oxide battery plate comprising lead oxide, sulfuric acid and a naphthalene sulfonic acid formaldehyde condensate being water soluble and having a molecular weight of about 9,000 to 15,000; methods for preparing the battery paste are also disclosed.

An apparatus is adapted to centrifuge and furthermore automatically handle a container (10) for separating a component, such as fibrin monomer, from plasma. The container (10) comprises a cylindrical member (11) and a piston (25) displaceable therein and comprising a tubular piston rod (12), which extends through the top wall. The piston (25) divides the cylindrical member (11) into a first chambe...

A centrifuge comprising a container (110) which includes a cylindrical member (27) and a piston comprising a piston rod (8). The piston divides the cylindrical member (27) into a first chamber (70) positioned above the piston and a second chamber positioned below the piston. The apparatus comprises a supporting turntable (101) with means for releasably retaining the cylindrical member (27), the su...

A process for the production of methanol is disclosed wherein the gaseous reactants of CO, H2 and optimally CO2 are reacted in a distillation column reactor in the presence of an inert C7-C12 component, which is boiling at the reaction temperature within the catalyst bed. The inert component is taken overhead along with the methanol and separated therefrom for reflux of the inert component back to...

It is to provide a method for producing a low-fuming rigid polyurethane foam, which is superior in initial activity at low temperature and requires a small amount of a stock liquid. A method for producing a rigid polyurethane foam, which comprises mixing (a) a polyisocyanate component with a polyol component comprising (b) a polyol mixture, (c) a catalyst and (d) a blowing agent, then foaming the ...

A method of making a structural iron-based article comprising: (a) blending a compressible base iron powder (max. particle size of 100 microns) a graphite powder to provide carbon in mixture, and a single master alloy powder (average particle size of 10 microns) meltable within the range of 900-1200.degree.C (1690-2220.degree.F) to form a mixture, the master alloy powder being present in an amount...

Process for the production of expandable particles of styrene polymers, having improved processability characteristics, which comprises: i) producing expandable particles of styrene polymers containing from 2 to 20% of an expanding agent incorporated; ii) covering these particles with an antistatic agent in a quantity of less than 1% by weight; iii) vigorously frictioning the particles in a mixi...

Dynamometric measuring assembly for a drill pipe, formed by a measuring device comprising, firmly attached to the rotating pipe, sensors and a first electronic circuit for conditioning the signals supplied by these sensors, a radiotransmitter mounted in a fixed manner on the rotating pipe and an acquisition unit. According to the invention, the measuring assembly furthermore comprises a radio rece...

The present invention describes a process of making strap using both post consumer and non-post consumer PET of wide distribution intrinsic viscosity (IV) through direct solid state polymerization in a flaked state to product PET with increased, heterogenous IV suitable for high performance strap extrusion. The process increases the IV of post-consumer resins, consisting principally of polyethylen...

A frangible sealing disk for use downhole in combination with packer components. The sealing disk is a molded ceramic disk having a circular seating face and extending centrally through a dome-shaped seal. The seal is preferred for use in combination with a packer assembly for pressure sealing the borehole, either up hole or down, so that the seal may be broken away easily when it is desired to re...

A system for data transmission over an electrical link (12) including at least one distribution server (10) and one client station (11), which requests transmission of a specific data set from a distributor, communicating with the distribution server (10). The server (10) is arranged to produce a first encrypted and with a password-locked package of said specific set of data, the password being ge...

PCT No. PCT/FR98/00008 Sec. 371 Date Dec. 11, 1998 Sec. 102(e) Date Dec. 11, 1998 PCT Filed Jan. 6, 1998 PCT Pub. No. WO98/30389 PCT Pub. Date Jul. 16, 1998The invention relates to antistatic wrapping films comprising at least one layer made of polyamide or of an alloy of polyamide and of polyolefin. The antistatic additive is a polymer containing polyamide blocks and polyether blocks. They are pa...

A glass heating system includes a low emissivity sheet of coated glass and a capacitor for capacitive coupling the coated glass to a power source. The low emissivity glass is economical to produce and provides superior thermal properties. The low emissivity glass has a low sheet resistance and is coupled to one or more capacitors to increase the impedance of the circuit and reduce the power dissip...