Abstract: The invention relates to acrylic telomers with grafts which can be cross linked by light, methods of synthesizing them and their applications. The telomers comprise a telogen of the mercaptan family, in particular dodecanethiol, and links of a taxogen of the acrylic family, some of which are grafted. The telomers are synthesized semi-continuously by radical initiation in the presence of initiators such as azobisisobutyronitrile, at a temperature below 75.degree. C., making it possible to obtain a number of links adapted to the desired applications. Grafting is carried out by means of glycidyl and aziridinyl groups.

Abstract: A method of mounting an annular element on a tube which involves surrounding said tube by a tubular sleeve of aluminum or an alloy thereof, which is sufficiently thin to be plastically deformable and has a similar cross-section, with suitable clearance, with one of the sleeve ends having an outside bevel; surrounding said tube, on the side of the sleeve bevel, with an annular element to be fastened, wherein the annular element has at least one opening whose crosswise dimensions are greater than those of the tube, but whose radial clearance with said tube is less than the thickness of the sleeve, and which has, on the sleeve side, an inside bevel whose maximum crosswise dimensions are greater than the crosswise dimensions of the end of the element and the sleeve toward one another, by a suitable means, and introducing the sleeve, by force, between the annular element and the tube by plastically deforming the sleeve and tube, thereby mounting the annular element.

Abstract: The invention concerns a method for minimizing deformation during rapid cooling of flat metallurigcal products such as sheets, strips, flattened portions, wide sections and the like.The method comprises rapidly cooling the product by means of a fluid (or mixtures of fluids) at temperature T.sub.F, comprising at least one vaporizable liquid, with modulation in a direction perpendicular to the direction of advance of the product, so as to impart different cooling speeds to the edges and the axis (case I) or to one edge and the other (case II).The technique may be completed by careful masking of the cooling in the zone for the rapid cooling action, or by controlled precooling prior to said rapid cooling.The method makes it possible to obtain the rapid cooling which is necessary e.g. in quenching operations, while at the same time minimizing the deformations or the internal stress level of flat products.

Abstract: A food package for use with a UPC or bar code has a rectangular configuration with projections along its longitudinal edges received in openings of a flat cover member. Tongues project into these openings to brace against the undersides of these projections and hold the strips defined by longitudinal score lines of the cover member against the lateral flanks of the container so that a UPC or bar code on one of these strips can be scanned by a fixed-position reader without tilting or turning over the package.

Abstract: Metal sheets of aluminum are provided with raised reinforcing portions of substantial height by rolling. The rolls have recesses or channels (6) whose side faces are in a counter-taper configuration with respect to a plane perpendicular to the axis of the cylinder, with an angle of inclination (.alpha.) of up to 5.degree.. The resulting product may advantageously be used for producing perforated metal sheets with high modulus of inertia.

Abstract: Upon leaving the mold, plastic bottle preforms are engaged internally and/or externally by pneumatic suction grips which form an annular chamber (15, 27) through which atmospheric cooling air is circulated. This increases the rate of production of the preforms by cooling them during handling, rather than separately at a discrete cooling station.

Abstract: Device for assembly of profiles by a groove, tongue fitting, with locking by key, which avoids the risks of tongue and key sliding along groove. The device consists of making one of the male elements, tongue or key, longer than the other, in the direction of the generatrices of groove, and making one of the side surfaces of the longer element concave along the generatrices of groove. The invention allows realization of trellis constructions having oblique bars.

Abstract: The present invention relates to a process and apparatus for the recovery of liquid aluminium by compression of hot dross.The process comprises placing the dross in a die up to a height which depends on the diameter of said die and which is lower at the center than at the periphery of the die, and then applying to the dross a punch which is moved downwardly at a speed which is lower in proportion to a lower level of concentration of liquid aluminium in the dross.The apparatus comprises a cylindrical die (10) provided with an insert member at each of its ends. The die rests on a base (3) which has an annular groove (4) on its upper face; the lower insert member (7) is of a diameter that is at least equal to the inside diameter of the groove and in any case less than the outside diameter and has a continuous upper face of conical shape; the space (16) between the wall surface of said insert member and the internal wall surface of the die is of a constant width and is disposed facing the groove.

Abstract: The beet juice extracting process, employing in particular diffusion, of the type comprising previously treating beets cut into cossettes with calcium ions, wherein the prior treatment is effected by treating the cossettes with an aqueous solution of calcium saccharate.

Abstract: Fuel tank for a motor vehicle, the lower wall of which possesses, on its periphery, bosses 3 which permit the engagement of the curved head 4 of the suspension hooks 5 used for fixing the said tank, and, if appropriate, possesses vertical grooves 9 in its side wall 8, which trap the straight part 6 of the suspension hooks 5.

Abstract: The invention relates to cylinder liners for internal combustion engines comprising a matrix based on aluminum alloys of high mechanical strength, obtained by powder metallurgy, and methods of producing them. The liners comprise a dispersion of grains of an added intermetallic compound, apart from the dispersion of such intermetallic compounds as may exist in the alloy, the added compound having a melting temperature of over 700.degree. C. The liners are obtained by extruding or sintering a mixture of powders. The liners of the invention may be used particularly in the automobile industry and in any kind of industry where liner-piston units of good compatibility must be obtained from aluminum alloys.

Abstract: This invention relates to inserts for pistons of diesel engines of aluminum-silicon alloys obtained by powder metallurgy.These inserts are characterized in that they contain elements such as iron and zirconium.They find their application in the manufacture of pistons intended to work at high temperatures for long periods and exhibit a good friction capacity.

Abstract: This invention relates to a process for sintering aluminum alloy powders under pressure.It consists in placing the powder in a capsule, in coating the capsule with an easily melted, stable vitreous material with a viscosity between 10.sup.2 and 10.sup.5 poises at the sintering temperature and in pressing it in a unidirectional press.It applies, in powder metallurgy, to the obtaining of castings that exhibit homogeneous mechanical properties, these castings being able to be roughcasts or finished castings.

Abstract: A three-phase choke, includes a five-leg core formed of a central core leg carrying a winding, two outer core legs each carrying a winding and two return legs, the central and outer core legs being formed of stacks of laminations, a lower yoke having ends adjacent the return legs, an upper yoke formed of sections having ends defining gaps between the ends of the sections and gaps between the return legs and the ends of the sections of the upper yoke adjacent thereto, and non-magnetic material filling the gaps, the yokes and return legs having cross sections being smaller than the cross sections of the core legs carrying a winding, each of the return legs and the ends of the yokes adjacent thereto having a first magnetic resistance, the upper yoke having a respective portion thereof disposed between the central core leg and each of the outer core legs each having a second magnetic resistance, and the lower yoke having a respective portion thereof disposed between the central core leg and each of the outer core

Abstract: The invention concerns a process for improving the characteristics in respect of fatigue strength and toughness of worked Al alloys in the treated state, by means of a thermo-mechanical treatment which is carried out on the cast and possibly homogenized product.It comprises the following steps:(a) casting an initial product along an axis XX' by a known method(b) optional homogenization(c) upsetting in the hot state, preferably by means of a press, along the axis XX', with an upsetting ratio (initial length/final length along axis XX')>1.4(d) drawing in the hot state in the direction of the axis XX', with a rate of working (initial cross section/final cross section, considered perpendicularly to the axis XX')>1.

Abstract: The present invention relates to a method of controlling and regulating operational parameters of a machine for continuously casting bands between cylinders, allowing adhesion to be avoided. This method comprises considering as parameters the torque exerted on one or other of the cylinders for moving the band on and comprises permanently comparing the frequency of the variations in the torque measurement with a reference frequency. When the variation frequency is greater than the reference frequency, the casting speed of the machine is reduced and/or the lubricant flow rate is increased until the variation frequency is again lower than the reference frequency. The speed of the casting machine is then increased as long as the variation frequency remains below the reference frequency.

Abstract: The invention relates to a method for the monitoring and control of operating parameters of a machine for the continuous casting of strips between rolls, including the torque exerted on at least one of the rolls to cause the strip to advance and/or the stress exerted by the strip on at least one of the journals and/or the temperature of the strip as it leaves the rolls and permanently measuring the deviation between the instantaneous value of one of these parameters and the mean value of this parameter over a period of time immediately beforehand. If this deviation exceeds a reference deviation, the casting speed of the machine is reduced until the deviation again becomes less than the reference deviation. The speed of the casting machine is then increased for as long as this deviation remains lower than the reference deviation.

Abstract: A jug comprises a hollow body shaped to contain a liquid and having a bottom, a top wall, and opposite front and rear walls extending between the bottom and top wall and a collar formed in and projecting upwardly from the top wall adjacent the front wall and defining a pour mouth so that a closure can be engaged sealingly with the collar. The jug is provided with a tubular handle having a rear end opening into the body and connected to the top wall adjacent the rear wall and a front end connected to the top wall spacedly adjacent the collar. In addition structure is provided which is unitary with the handle and top wall and which forms a passage extending from the front end of the handle to the collar in the mouth. Thus, when the jug is forwardly tipped to pour liquid from the mouth, air can enter the body through the passage and tubular handle.

Abstract: An electrically heated sterilization chamber 9 for a hollow blow molding needle 15 is embodied in a half-mold 1A and exits directly into the mold cavity 3, 4. A three-way distributor core 11 enables the selective connection of the sterilization chamber to the mold cavity or to a circuit 21 comprising a vacuum source 35 and a source of sterile water vapor 37 coupled in parallel. The needle is initially sterilized by the hot water vapor, and thereafter maintained in a sterile state by the electrical heating and its confinement within the half-mold.

Abstract: A coupling for two tubes forcibly engaged one into the other, the two tubes being substantially of the same sections while the female tube is engaged into a sleeve or an opening whose diameter is little larger than the outside diameter of said tube. Thus, the female tube is crimped or banded in the sleeve or opening while the male tube is forced to contract. This assembly means may be used for making balustrades or ladders or assembling various members which are fixed with respect to the tubes or the ring.