The invention provides an offshore tower structure comprising a base structure for positioning on the sea bed, a central enclosed tubular column 20 containing services such as conductors and risers and extending from the base structure to above the water level, in use, for supporting a service platform 21 and at least three tubular support legs 22, 23, 24 each extending between the base structure ...

The present invention discloses a direct reduction process for producing reduced iron by reducing iron ores and/or pellets with reducing gases, wherein the iron ores and/or pellets are reduced to a degree of reduction of 30-80% by a reducing gas containing 15-40% by volume of methane at a temperature of more than 950 DEG C. and further reduced by a reducing gas containing high proportion of carbo...

An apparatus is described whereby the side force on a drill bit can be measured during drilling operations and transmitted to the surface where it can be used in predicting trajectory of the hole and taking corrective action in the drilling operation. A downhole assembly using a downhole motor is modified to include means to detect the side thrust or force on a bit driven by the motor and the forc...

A hand-toboggan to accommodate a seated or kneeling rider and having a bottom surface with a longitudinally extending medial portion and two opposite flanks upwardly and outwardly inclined from the medial portion, a pair of parallel longitudinally extending ribs bordering the medial portion, and a plurality of parallel inwardly curving ribs on each of said flanks to enable the rider to turn the to...

Novel N-(4-alkenylthio)-phenyl-N'-benzoylureas of the formula wherein R1 is a C3-alkenyl group, or a C3-alkenyl group which is mono- or disubstituted with chlorine or bromine, R2 and R3 independently of one another are each hydrogen or chlorine, R4 is hydrogen, fluorine or chlorine, and R5 is fluorine or chlorine; processes for producing these compounds, and also compositions containing ...

1. Apparatus for producing fibres from a thermoplastics material and comprising a centrifuge (10) revolving about a substantially vertical axis (22), means for driving the said centrifuge with a rotary motion, means of conveying a stream (24) of material molten to the drawable condition into the centrifuge and carrying it onto the inner surface of the peripheral wall of the said centrifuge, a larg...

PCT No. PCT/FR79/00101 Sec. 371 Date Jul. 7, 1980 Sec. 102(e) Date Jun. 11, 1980 PCT Filed Nov. 7, 1979 PCT Pub. No. WO80/00978 PCT Pub. Date May 15, 1980. The invention relates to a process for packing, also known as lining, electrometallurgical furnaces. The packing is produced from a concrete which is poured in situ or in precast blocks, composed of a setting cement having a low water retention...

When breaking up lumps of stone from a subaqueous stony ground, the lumps are loosened by means of at least one chisel inserted into the ground and being moved along the ground surface. In order to break up lumps of stone by low power and to main a predetermined size of the loosened lumps of stone suitable for being lifted by a suction dredger system, the structure of the top layer of the stony gr...

The invention provides a polymer composition which comprises a crosslinkable or crosslinked blend of an elastomer and a thermoplastic polymer, the elastomer comprising a polymer of ethylene with an ethylenically unsaturated aliphatic ester, and the elastomer and the thermoplastic polymer being substantially free of halogen-containing substituents. The preferred compositions may be used as jacketin...

Problems arise when erecting a sheet pile on rock substratum and subsequently anchoring the piles. If a channel is blasted, this has the draw- back that the over burden has to be initially cleared prior to blasting and then replaced subsequently. In addition, the piles when secured in the blasted channel when refilled with concrete and the anchors in the rock substratum are not as securely support...

A piezoelectric ceramic for acoustic surface wave devices which consists essentially of a solid solution of the ternary system Pb(Sn alpha Sb1- alpha )O3-PbTiO3-PbZrO3 having a composition showing a phase transition between a ferroelectric rhombohedral low temperature phase (FR(LT)) and a ferroelectric rohombohedral high temperature phase (FR(HT)) at a temperature within the range from -20 DEG C....

The present invention relates to a method of inducing a response dopamine-like in an animal having impaired cardiovascular and renal functions, comprising administering to said animal an effective amount of a compound having the general formula: wherein R is a secondary or tertiary alkyl radical having from 3 to 7 carbon atoms, and their salts with nontoxic organic and inorganic acids....

A process for the removal of acid gases (H2S, CO2 and COS) from a gas mixture by contacting the gas mixture with an aqueous solution containing at least 5% by weight water and comprising:a) a physical solvent for acid gases, e. g. sulfolane;b) a tertiary amine (e.g., methyl-diethanolamine or diethylmonoethanolamine);c) a secondary and/or primary amine with PKB which is not lower than the PKB ...

A liquid composition for consolidating an underground formation comprises resin-forming agents including an epoxy compound and dissolved in a solvent in a total volume concentration between 5 and 30%, and a viscosifying agent. The viscosifying agent may be a polymer, such as a polymer selected from the group of polymers consisting of isobutene polymers, methacrylate polymers, olefine copolymers, s...

The elliptically-shaped tire has a pair of oppositely-opposed bead cores, a carcass structure each end of which is wrapped around a bead core, an apex disposed between the carcass structure and each of the ends thereof, a pair of oppositely-opposed sidewalls overlying the carcass structure, a chafer strip positioned between the carcass structure and each of the sidewalls, and a tread overlying the...

A packaging structure for a semiconductor IC chip, in which lead electrodes connected with the chip are extended out through a binding agent filled in a sealing gap, characterized in that in the vicinity of the lead electrodes the outer surface of the binding agent is recessed with respect to the outer surface of the packaging or sealing members.