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 ...

An outer inner-toothed gear is loosely mounted in a casing. Several coupling arc parts of the outer inner-toothed gear are fitted to coupling projections of the casing with clearances defined therebetween. The outer inner-toothed gear displaces in the radial direction. Radial displacements reduce the noise generation. The outer inner-toothed gear can deform in angular directions. Angular deformati...

A centrifuge for separation of two liquid phases of different specific gravities to be removed separately; the separation chamber has a first subset of openings communicating with a skimmer and a second subset of openings communication with a collector. In one position, a movable barrier plate covers the inner portion of the first subset and the outer portion of the second subset to direct the hea...

A centrifugal separator comprising a circular centrifuge separation channel having an inlet for receiving a liquid to be separated and an outlet for providing components of the liquid in separated layers at different radial locations, a collection chamber for receiving the separated layers, the chamber having first, second and third outlets in the collection chamber for removing components at diff...

1. Process for continuously separating off substances present in a contaminated liquid by the staggered addition of two polyelectrolytes for the formation of flocks, which are deposited in order to clarify the liquid, characterized in that, in order to form microflocks, the first polyelectrolyte and, as known per se, a gas are introduced into the contaminated liquid, the gas being dispersed in the...

Disclosed is a drive apparatus for a device for applying paraffin wax to yarn. In the device, a solid block of paraffin is mounted on a polyhedral bolt which is driven by a whorl or drive pulley. The whorl, in turn, is driven by a continuous drive belt. Advantageously, a plurality of similar devices are mounted on the same open-end spinning machine so adjacent devices may be driven from the same d...

In an electrode for an electrochemical cell the permanent active material is absorbed in several electrolyte- permeable hollow fibres 1, 2, preferably of a non-rigid plastic material. An electrochemical cell comprises at least one such electrode.

PCT No. PCT/SE86/00384 Sec. 371 Date Apr. 29, 1987 Sec. 102(e) Date Apr. 29, 1987 PCT Filed Aug. 29, 1986 PCT Pub. No. WO87/01516 PCT Pub. Date Mar. 12, 1987.In an electrode for an electrochemical cell, the solid active electrode material is accomodated in a plurality of electrolyte-permeable hollow fibres, preferably of yieldable plastic. An electrochemical cell comprises at least one such electr...

The utility model relates to an inflated versatile solar cooker without a framework to seek a product which both can be used as a solar cooker and can be used as an umbrella. The utility model has the advantages of convenience for carrying, low cost and wide range of application. The production process of the solar cooker is simplified. The known solar cooker and the umbrella are combined to integ...

PURPOSE:To obtain a high denitrification effect by firstly carrying out aerobic treatment, supplying an org. material as a hydrogen donor into waste water, conducting anaerobic treatment, and then again performing aerobic treatment. CONSTITUTION:Waste water is supplied into the liq. mixture of activated sludge in the treating vessel 1 by a waste water supply part 2, and then the inside of the vess...

A method and apparatus for effecting vital functions notwithstanding the fact that non-vital hardware is employed. A vital processor is implemented using non-vital hardware in the form of a digital computer which may for example be a microprocessor. The vital processor accepts binary input values and, based on a series of logical expressions relating output values to input values, determines the a...

An open network structure (6) containing a sealant composition is enveloped between the usual inner liner of the tyre and a cover strip (7). The open network structure (6) may be either a flexible open-cell rubber or polyurethane foam or a mat of woven or non-woven organic polymer filaments bonded at at least 80% of their crossings and having a softening point of at least 200 DEG C. The sealant co...

Stable crosslinked polyurethane aqueous emulsions are prepared by (1) forming in an inert solvent a branched prepolymer derived from (a) an amine containing alcohol having two or three -OH groups, (b) a hydrophobic polymeric diol or triol, (c) a mixture of an aliphatic and an aromatic polyisocyanate and (d) optionally a urethane-forming catalyst; (2) admixing the reaction product ...

This invention relates to improvements in or relating to forming Doner or Shawarma kebabs. In particular, a machine for forming a Doner or Shawarma Kebab comprises a tubular member (1), a first pressing plate (2) receivable in one end of the tubular member (1), a second pressing plate (3) removably mountable to the tubular member (1) to close the other end thereof, one of the first and second pres...

Unsaturated carboxylic acid esters having a 2E,4E stereoconfiguration (wherein X stands for hydrogen, C1-4 alkoxy or hydroxy and R represents C1-4 alkyl), may be prepared by reacting a salt (wherein M stands for a metal ion or an ammonium ion substituted by one or more alkyl and/or aralkyl group(s) and X has the same meaning as stated above) with an alkyl halide R-Y (where...

The monitor comprises an optoelectrical monitoring head including a linear array of light sources which are sequentially pulsed to scan the web and a corresponding linear array of optoelectrical light receivers which receive light reflected from the web. The outputs 32 of the receivers are coupled with a signal evaluation circuit including a singal amplifier 34 and a trigger stage (35) controlled ...

An overshoe is provided for an orthopaedic cast such as a plaster cast. The overshoe comprises a sole, an upper piece connected to the sole and a toe cap. The upper piece has first and second parts adapted to receive a plaster cast in the overshoe and has fastening means, such as a "Velcro" (Trade Mark) fastening, allowing those parts to be fastened together to hold the cast firmly within the over...

A biaxially stretched polyester film having excellent transparency and slipperiness, containing 0.005 to 1% by weight of an organic lubricant and having the following properties after biaxial stretching and heat-setting: DELTA H H<100>0 mu s wherein DELTA H is the surface haze of the biaxially stretched film, H<100>0 is the internal haze of the film as ca...

A process for the production of a grinding foam body composite, especially of a homogeneous, elastic, microcellular grinding foam body, based on a fibre fleece containing a grinding agent and on a polyurethane foam, wherein onto the fibre fleece containing a grinding agent there is superficially applied a liquid, solvent-free NCO-terminated polyurethane pre-polymer, the coated fleece is assembled ...

Hydrophilic thermoplastic polymers such as polyurethanes are stretched at a temperature above their glass transition point and then cooled to control axial swelling characteristics of the polymer in aqueous media; such polymers are especially useful for intravenous catheters.