A method for the direct gaseous reduction of iron ore to sponge iron at an elevated temperature suitable for hot briquetting, wherein a hot reducing gas is circulated upwardly through a descending body of iron ore and a make-up reducing gas stream is added to the circulating gas stream. A sponge iron product having a predetermined desired degree of carburization in the range 0.5% to 4% is obtained...

Dispositif de serrage, notamment pour massicots à trois couteaux pour rogner des blocs de feuilles, brochures, etc., comportant un poinçon presseur qui, sous l'effet d'un bras pivotant 4 muni d'une tige de poussée 14, serre la matière à rogner. Le bras 4 porte une autre tige 6 qui, par sa première extrémité, s'applique contre un ressort 13 prenant appui dans le bras 4. Par un organe de couplage...

Dans ce dispositif servant à former des bobines 36 contenant des fils enroulés d'une manière étalée, des moyens 3, 4 servant à étirer deux bandes de fibres 1, 2 pour former des composants de fils 5, 6 traversant des dispositifs à fausse torsion 7, 8 formant des fils prérenforcés 9, 10 réunis sous la forme d'un fil double 12 tiré par un dispositif de tirage 13 et enroulés dans un dispositif d'en...

The thread guide, with two open deflection stirrups to lead the thread to the needle of a sewing machine, is single coiled round wire to form the guide to give a cylindrical opening. Both ends of the wire are each bent round to form circular thread guide eyelets. Radially extending deflection stirrups are located on each side of the central opening. ADVANTAGE - The guide allows different threads...

PURPOSE:To contrive the improvement of fuel efficiency by disposing permanent magnets in each of mutually neighboring fuel flowing-in and flowing-out chambers and subjecting a petroleum fuel to magnetic treatment. CONSTITUTION:A box type fuel flowing-in chamber 5 and a box type fuel flowing-out chamber 6 are allowed to neighbor each other with an interstructure 43 provided thereon with a passage c...

PURPOSE: To provide the narrow light beam having even intensity by arranging narrow and long lamps so as to be overlapped with each other in a housing having a longitudinal slot, and alternately leading the light from an opening of the lamp to the slot through a translucent material sheet. CONSTITUTION: This device 10 is formed into a rectangular shape, and a housing is formed with a slot 12 betwe...

There is provided an apparatus and methods for computerized laser surgery. The apparatus comprises apparatus for displaying in real time a visually sensible image of the area of surgery, apparatus for displaying in overlay over the visually sensible image a simulation of the effects of operator indicated laser surgical procedures on the area of surgery and automated apparatus for carrying out the ...

Oriented polyester films primer coated with a hydrolyzed aminosilane are disclosed. These silanes in the unhydrolyzed state have the formula: XSi(R<2>)a(R<3>)b wherein X is a radical selected from the group consisting of H2NR<1>HNR<1> - and H2NR<1>HNR<1>HNR<1> -; the R<1>'s are the same or different groups selected from the group consisting of C1 to C8 alkyl or phenyl; R<2> is a hydrolyzeable gro...

A modular multi-channel automated medical analyzer device is disclosed, characterized by use of an ion selective electrode and/or enzymatic electrode/wash cell system which permits rapid analysis of various substances of interest contained within undiluted body fluids such as whole blood, serum and/or plasma. The ion selective electrode and/or the enzymatic electrode are disposed upon a probe whic...

La présente invention concerne une fixation de sécurité pour ski, destinée à maintenir une chaussure sur un ski.

Cette fixation est caractérisée en ce que la vis de réglage de dureté 15 est vissée dans un élément 12 formant un écrou de réglage de dureté, servant d'organe d'appui pour le ressort de compression 9 et en ce que l'axe de la vis de réglage 15 est distinct de l'axe du ressort d'...

Acier ferritique renforcé par dispersion possédant une excellente ductilité et dureté est préparé, qui comporte un matériau de base ayant une structure martensitique par revenu composé de 0,05 à 0,25 % en poids de carbone, 0,1 % en poids ou moins de silicium, 0,1 % en poids ou moins de manganèse, 8 à 12 % en poids de chrome, 0,1 à 4,0 % en poids total de molybdène et tungstène, et 0,02 % en poi...

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 ...

The present invention relates to ductile poly(ethylene terephthalate) material which is clear, biaxially oriented and has a density of over 1.4050 grams/cc at 25 DEG C.

A bicycle caliper brake is provided which includes a pair of brake arms each having a brake shoe on one end thereof. A support bolt supports the brake arms rotatably relative to each other. The brake arms each have a boss with a throughbore by which the brake arms are fitted onto the bolt. The bosses are supported on the bolt adjacent to each other. A thrust bearing is interposed between opposite ...

Prepreg precursors and other normally non-flowable resinous semi-solid or viscous liquid polyimide precursor compositions often need to be transformed into free-flowable liquids without dilution and without causing changes in their chemical composition. Such compositions are composed of (a) a diester of an aromatic tetracarboxylic acid, (b) an aromatic diamine, (c) a polyamic acid producible from ...