1. Large-size textile-yarn package, preferably for dyeing, characterized in that the yarn is at least one interlaced textured synthetic continuous yarn having between 40 and 200 interlacing per metre, the package being of the cross-wound straight-flank type of a crossing of between 20 degrees and 45 degrees and of a density of between 0.10 g/cm**3 and 0.30 g/cm**3, the diameter of the package bein...

PURPOSE:To improve the rotating efficiency of a wind mill by forming an inner wind tunnel structure into a double wind tunnel structure so as to allow each of two air flows to be joined together for blowing off stagnation generated behind the wind mill. CONSTITUTION:An inner wind tunnel structure 6 is provided rotatably within an inner circumference of an outer wind tunnel structure 1 so as to for...

A device for the positive feeding of a yarn, particularly for knitting machines, having a rotatable storage drum adapted to have a yarn supply wound thereonto and withdrawn therefrom over a rim thereof, a stationary yarn guide element located below the rim and outwards of the periphery of the rim in a center plane extending through the axis of rotation of the storage drum, a yarn guiding element l...

A method of producing a heat-shrinkable elastomer comprising the steps of: (a) without the application of external heat, extending an elastomer comprising a copolymer of alternating polyamide and polyether repeat block polymer segments to an extension beyond that at which permanent deformation occurs thereby to orient said elastomer uniaxially, and (b) subsequently releasing the tension on said el...

PROCEDIMIENTO Y APARATO PARA FABRICAR MARCOS DE PLASTICO RIGIDO. COMPRENDE: A) EXTRUSIONAR A LOS PERFILES PLASTICOS; B) CORTAR Y SOLDAR A LOS PERFILES EN LAS EXTREMIDADES PARA FORMAR UN MARCO DE ARISTAS; Y C) REDONDEAR UNA DE LAS ARISTAS MEDIANTE TERMOMOLDEADO. CONSTA DE: UN TROQUEL DE MOLDEADO (20) DOTADO CON UN PISTON (23) ASOCIADO A UN CILINDRO (26) Y DOTADO CON UNA CARA (30); UN TROQUEL DE MOL...

Comprised of shallow tanks C with their fittings, made of thin plastic material, whose rigidity is obtained by filling its deep face, in situ, with cement or concrete, covered with solid antiskid glazing having a greenhouse effect and whose shape is such that the mounting of the fittings is simple and precise, for arranging on the periphery of the swimming pool instead of the kerbstone, and which ...

A single body of plastic material has three converging coplanar radial arms and a perpendicular central hole. Each arm has an axial seat with a blind bottom to receive one end of the tubular structure and means for locking said end. The central hole is designed to receive a rotation hub.

A transport cart for material carriers such as bobbins or drums having threads or other elongated material wound thereon, has a cart frame with wheels and a tilting frame journalled in said cart frame. The tilting frame carries two parallel skids for supporting a material carrier on its rollers. The tilting frame is tiltable between a first position in which the skids extend horizontally for loadi...

The thread catching and severing ring structure includes a ring element which is press fit onto a second ring element. The first ring element has a plurality of projections which overlie a groove on the second ring element. The projections and groove are sized so that a thread can be guided into the groove and thereafter into a gap between a land on the second ring element and a projection on the ...

A continuous marine pipe laying system utilizes two rollers to overbend and straighten pipe as it is unwound from a reel. A support arm is pivotally connected to the axis of rotation of said reel and first and second roller arms are pivotally connected to the support arm at a point spaced from said axis of rotation. During use, the first roller is positioned at a point adjacent the pipe substantia...

The invention relates to a method for the detection of fungi and algae in animal or human tissues and body fluids, to preparations containing an optical whitening agent suitable for the method, and to a test pack for performing the method. The tissue sections or body fluid samples to be examined are treated with an optical whitening agent and observed using a fluorescence microscope. The invention...

PURPOSE:To guide an unmanned carrier with no big meandering by providing plural optical detectors in two rows along an optical guide band and increasing the controlled variable of the steering angle of the carrier caused by the outputs of those optical detectors toward a steering wheel. CONSTITUTION:Plural optical detectors 9L1-9L4 and 9R1-9R4 consisting of light emitting elements and photodetecti...

Fragrance-emitting articles comprising a polyurethane foam containing a particulate filler and a fragrance material, and a method of making such articles, are disclosed. The method includes the essential steps of pre-mixing particulate filler and fragrance and dispersing the pre-mix in a liquid polyol, before adding the other reaction mixture components, and provides a polyurethane foam having a c...

This invention relates to 2,6-dihalobenzyl esters. There are provided 2,6-dihalobenzyl esters of formula I: (I) where R1 and R2 are independently selected from fluoro, chloro and bromo, Y1 is chloro, and Y2 is fluoro or chloro, provided that when R1 and R2 are both bromo Y2 is fluoro and when neither of R1 and R2 is bromo, at least one of R1 and R2 is the same as at least one of Y1 and Y2; m...

A method and apparatus for use at the stage of a radial tire building process at which a tread and breaker, and sidewall rubbers, are added to the expanded carcass. A tread assembly is built, comprising tread rubber breaker and sidewall rubbers and is then located around the carcass which is then expanded into the tread assembly. A tread assembly former has a central portion expansible to bring si...