1. Claims for the contracting States BE CH DE FR GB IT LI LU NL SE A process for the preparation of acetylene derivatives of general formula : see diagramm : EP0146439,P21,F1 in which : - R1 denotes a hydrogen atom, a phenyl radical or a radical of general formula : see diagramm : EP0146439,P21,F2 in which : - R2 and R3 , which are identical or different, denote a hydrogen atom or a saturated o...

An improved screw decanter type centrifugal concentrating machine of the type including a horizontally extending bowl (1) and a screw conveyor (8) rotatably supported within the bowl (1) in the coaxial relation is disclosed. The screw conveyor (8) is rotated at a different rotational speed from that of the bowl (1) and an arrangement is made such that liquid initially supplied prior to separating,...

For heat treating products having a substantially circular cross section and being composed of mineral fibers containing a binder in solution in water, a metal container impervious to microwaves and equipped with a conveyor device includes a source of hot gas which is directed to the surface of the product. The conveyor in the form of a movable belt and a ceiling of fixed plates cooperate to roll ...

A multinode parallel-processing computer comprises a plurality of interconnected, large capacity nodes (12) each including a reconfigurable pipeline of functional units such as Integer Arithmetic Logic Processors, Floating Point Arithmetic Processors, Special Purpose Processors, etc.. The reconfigurable pipeline of each node (12) is connected to a multiplane memory (28) by a Memory-Alu Switch NETw...

The present invention relates to biological purification of waste waters. Methanol-containing waste waters are subjected to neutralization by means of orthophosphoric acid, enrichment with sources of nitrogen, whereafter the strain Methylomonas metanica B-2576 deposited at the Central Museum of Industrial Microorganisms of the All-Union Research Institute of Genetics and Selection of Industrial Mi...

The invention concerns a coating for providing protection from corrosion and oxidation in the hot state, which coating is intended for the carrier bars of prebaked anodes and the emergent, or exposed, carbonaceous part of said anodes for Hall-Heroult electrolysis tanks, which elements are formed of a composition of carbonaceous aggregate selected from coke, graphite, semi-graphite and electrode sc...

1. Injection device for dosed injection, with a holding device (20) for a container (12) in particular having the form of a cartridge and containing the liquid to be injected, with a hypodermic needle (16) which can be moved in the proximal direction relative to the housing (30, 32), of the injection device during the injection operation and with a plunger (18) which is associated with a spring ar...

A process for applying an infra red reflecting coating on hot glass by directing onto a glass surface above 660 DEG C a tin compound in the form of a finely divided solid which decomposes under the conditions of application to deposit a fluorine-containing tin oxide on the glass. The use of a high glass temperature above 660 DEG C gives a product with increased infra red reflectivity and light tra...