1387481 Sulphited platinum - on - carbon catalyst HOECHST AG 31 Jan 1972 [8 Feb 1971 (2)] 4412/72 Heading B1E [Also in Division C2] Sulphited platinum-on-carbon catalyst, of use in the preparation of halogenated aromatic amines by hydrogenation of the corresponding halogenated nitroaromatic compounds, is prepared by a process wherein particulate platinum-on-carbon suspended in an acidic aqueous me...

Stabilized polyphenylene ether type resin composition obtained by compounding a polyphenylene ether type resin with one or more of stabilizer-component such as those respectively (a) a high molecular phosphorous ester having at least three phosphorous ester-bondings per molecule, (b) a high molecular phosphorous ester as said above and dicarboxylic acid dihydrazide substitution product, (c) a high...

1376338 Absorbing gases SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 30 Nov 1971 [2 Dec 1970] 55529/71 Heading B1L Sulphur oxides are removed from air by absorption under oxidative condition on an acceptor comprising copper and aluminium deposited on alumina which has been calcined above 780‹C. The acceptor is regenerated by reduction. The aluminium salt is deposited upon the carrier prior to or ...

A method for repairing or retreading a vehicle tire comprising the steps of filling a repair region with vulcanisable rubber, covering the repair region with a flexible cover attached around its edges to the tire with an adhesive, piercing the cover with a suction needle at points where air or other gases have accumulated, sealing of the openings made by the needle, and heating the repair region t...

The invention relates to a heel-holder of a ski binding, having a sole-holder which can be swivelled about a horizontal transverse axle from a skiing position into a release or entry position and vice versa and to which at least one control cam is assigned which interacts with a slide which is loaded by a catch spring and is guided in the longitudinal direction of the ski. The invention is based o...

An improved apparatus is set forth wherein powder is produced by melting metal in a crucible where it is then poured into a tundish which directs the molten metal onto a spinning disc means. A nozzle plate has a central opening through which the metal is directed from the tundish to the disc means. An efficient annular nozzle means directs a cooling fluid around the disc means. The crucible has me...

Use of fine-grained pentaerythritol, dipentaerythritol or a mixture of these compounds as a pore forming additive in porous ceramic products such as ceramic abrasive wheels and ceramic filters.

The processibility and initial mechanical strengths of hydraulic cement compositions, e.g., Portland cement, are improved by formulating therewith an adjuvant comprising (i) a water-soluble salt of the condensation product of an aromatic sulfonic acid with HCHO (formulated either alone or in admixture with a water-soluble salt of an aromatic sulfonic acid which has not been condensed with HCHO), (...

1470904 Treating polyoxadiazole fibres INVENTA AG FUR FORSCHUNG UND PATENTVERWERTUNG ZURICH 7 May 1975 [13 May 1974] 19107/75 Heading B5B [Also in Division D1] Aromatic poly-1,3,4-oxadiazole fibres are treated with at least one N-glycidyl compound. The fibres are obtained by wet-spinning; in the examples the solvent is concentrated H 2 SO 4 and the coagulant dimethylformamide. The coagulated fila...

1523047 Cation exchange membranes for brine electrolysis cells ASAHI KASEI KOGYO KK 2 July 1976 [9 July 1975(2) 31 March 1976] 27654/76 Heading C7B [Also in Divisions B5 and C3] Electrolytic cells, especially for brine, have the anode and cathode compartments separated by a cation exchange membrane comprising a fluorocarbon polymer containing pendant carboxylic groups of formula -OCF2COOM, where M...

Metallic coat finishing with good gloss vividness is provided by undercoating a liquid coating containing a specified thermosetting vinyl copolymer and a metallic appearance imparting pigment, overcoating a thermosetting, clear powder paint and then baking the two coated film together. The specified thermosetting vinyl copolymer is obtained by copolymerizing N-alkoxymethyl(metha)-acrylic amide, a ...

A trough-shaped reflector for use with rod-shaped sources of ultraviolet radiation in sunlamps has a rear wall behind the source and two side walls which flank the source and define therewith two narrow gaps. The front portions of the side walls are parallel to each other and extend forwardly beyond the source. The front surface of the rear wall has two concave portions which reflect rays into the...

In a method for drawing at least one fraction of solid substance by suction from a heterogeneous stock of several solid substances, which are segregated according to granular size and/or specific weight by supplying a segregation fluid, for example water, into a segregation zone at a distance from a suction nozzle of a suction pipe held in the stock, a selected fraction of segregated solid substan...

1449843 Dredgers CONRAD STORK BV 28 Sept 1973 [3 Oct 1972] 45545/73 Heading E1F The cutter wheel and suction pipe-carrying ladder 2' of a dredger is so pivotally mounted at one end on the pontoon hull 1' of the dredger towards the forward end of the pontoon and is so lowerably supported from the rear of the pontoon that, during operation of the dredger, the boom will extend obliquely upwards in th...

A method for sucking up soil or sludge by means of a suction dredge provided with a suction pipe having a drag head. Through the suction pipe (1) water and soil or sludge are sucked up. The soil or the sludge is loosened in front of the inlet opening of the drag head. Said loosening operation takes place at such a distance from the inlet opening (4) of the drag head (3) that by the loosening opera...

1512693 Phosphate stripping of sewage UNION CARBIDE CORP 20 June 1975 [21 June 1974 4 June 1975] 26229/75 Heading C1C A mixed liquor of phosphate-containing sewage and activated sludge is aerated to reduce the BOD and cause the micro-organisms to take up phosphate. Phosphate-enriched sludge is separated to give a phosphate-free effluent. The enriched sludge is passed to a phosphate stripping zone ...

A communication method and arrangement are disclosed which provide, for a trellis encoding process in the transmitter and a maximum-likelihood decoding process in the receiver, an additional fifth state (ZS) in addition to the usual four coding states (S0 . . . S3). The fifth state is entered in the transmitter at the end of transmission when a particularly selected escape symbol from a set of fou...