Abstract: A method of making plate material consisting of agglomerated clay-based particles, comprising providing a liquid particle suspension such as slip within a gap left between two continuously travelling confronting electrodes at a given voltage applied thereto, subjecting the suspension to an electrophoretic action between said electrodes and an adjacent counter-electrode subjected to a different voltage and controlling the formation and thickness of the electrophoretic deposits on said first electrodes so that when they leave the electrophoretic field they will be fused together with their outer surfaces having contacted each other and recovering said plate formed continuously from both layers of electrophoretic deposits.

Abstract: Polymerizations catalyzed by very finely divided lithium.The process is characterized in using lithium having an average particle diameter of less than 2.mu. and preferably of 0.1.mu. or less as a polymerization initiator.The process permits .alpha.-.omega. dilithic oligomers to be obtained.

Abstract: 9-hydroxy ellipticine, preparation thereof, and use thereof for the treatment of leukemias and solid tumors.

Abstract: A steel part, and more particularly a stainless steel part, is coated with a varnish containing particles of an additional metal such as tin or aluminium, and it is heated at a temperature situated above the melting point of the said additional metal, but outside a zone comprised between 700.degree. C and 970.degree. C. The treated part may be annealed at about 500.degree. C. The varnish may besides contain particles of a substance having a melting point situated above the melting point of the additional metal, but which may dissolve in the liquid phase of the latter. This substance may be chromium, molybdenum, cobalt, titanium, vanadium, nickel or copper.

Abstract: An electrochemical gage for measuring partial pressures of oxygen. The gage is preferably in miniaturised form and uses an internal reference or standard of palladium: palladium oxide. The internal reference is disposed in a compartment defined by walls of solid electrolyte.

Abstract: Combustible bricks are manufactured from plant materials by agglomeration under pressure of these materials after pulverization and drying. Prior to this, the plant materials are subjected to a fermentation and, in the course of fermentation, to a pulverization treatment while controlling this fermentation so as to obtain a destructuration of the cellulosic tissues of the plant materials without producing separation of the lignin.This process produces small bricks having a good strength and a low moisture content.

Abstract: The invention pertains to a mitrogenic agent and to a process for obtaining same.It comprises the steps of cultivating Nocardiae cells, collecting them, subjecting them to a treatment for rupturing the integrity of their walls, such as by lysis, discarding the solid residue and collecting the aqueous fraction, causing the peptidoglycane fragments contained in this aqueous fraction to be separated therefrom and recovering the remaining fraction containing the mitogenic agent.

Abstract: New mixed conductors resulting from the insertion of an alkali element in the lattice of an intercalation compound of graphite and of a product M'.sub.y X.sub.z : M' is a transition metal such as Ti, V, Cr, Mn, Fe, Mo; X is a non-metallic electronegative atom such as O, S, F, Cl or Br; y and z have the values of the indices in said product M'.sub.y X.sub.z. These mixed compounds are useful for the manufacture of positive electrodes of electrochemical generators.

Abstract: Very finely divided lithium.A mixture of inert gas and fine particles of lithium in suspension in the said gas is filtered on a bed of solid bodies which can be stirred, the mesh size of said bodies, the height of said bed and the speed of stirring being such that the metal particles are retained without causing the formation of a metallic slab on the surface.The suspensions of fine lithium particles in solutions are stable.

Abstract: Thorium tetrabromide has been found to exhibit fluorescence and radioluminescence with emission of blue light in the range from 3400 to 4800 A with a maximum around 4000 A in response to electromagnetic waves shorter than 3000 A, whether ultraviolet, X or gamma rays and also in response to energetic charged particle radiation, such as alpha rays, beta rays, protons and heavy ions. Because of the radioactive decay of thorium, there is a background autoluminescence. Crystals of thorium tetrabromide are transparent to its luminescence radiation and are particularly suitable for radiation detectors and measurements, frequency converter, standards, radioisotopic microgenerators of electricity, and the like. They are also useable as neutron flux detectors, for thermal and fast neutrons because the component elements of the crystal react with neutrons to respectively produce neutrons activation reactions and fission reactions.

Abstract: Water-soluble immunological adjuvants, extracted from mycobacteria and nocardia cells, useful for stimulating, in a host, the immune response to various kinds of antigens.

Abstract: The invention provides a focalization process of spherical concave diffraction gratings, working by reflection for the dispersion of various radiations constituting a polychromatic light, in which fixed entrance and exit slits are used and in which only a certain rotation is imparted to the grating, the rotation is imparted to the grating in such a way as to make the radiations move in the exit slit. For a certain ruled width of a given grating and a given resolution, the sum of the object and image tangential focal length equations has a value .epsilon. different from zero and determined in function of the aberrations furnished by a concave grating corresponding to the retangular port.

Abstract: A process and a probe for measurement of temperatures of a given medium and also for measurement of the density of electromagnetic power of a medium at a given temperature is provided wherein a beam of light is transmitted into a capillary enclosure containing a liquid having a reflecting meniscus so that light is reflected from said meniscus and the reflected light is transmitted out of said enclosure whereby the intensity of reflected light can be measured as compared to that of the incident light.

Abstract: The device for transmitting or receiving ultrasonic waves or pulses to and from well-defined adjustable directions or distances includes a capacitive transducer consisting of a layer of dielectric material tightly packed between two electrodes, one at least of which is formed of an appropriate array of elongated strips of circular or rectilinear shape.

Abstract: New compounds having the formula ##STR1## in which Y represents a hydrogen atom, in which case Z.sub.1 and Z.sub.2 represent simultaneously an oxygen atom, or Z.sub.1 represents a methoxycarbonyl radical and Z.sub.2 a hydroxy radical, or Y and Z.sub.2 form together a carbon-carbon bond and Z.sub.1 is a methoxycarbonyl radical, said compounds being additionally characterized by a cis-fusion of the D/E rings. Said new compounds and vincamine and certain of its derivatives are prepared from an enamine having the formula : ##STR2## in which R is H or C.sub.2 H.sub.5.

Abstract: A synchronous electrical alternator has a superconducting field winding and armature windings. An auxiliary winding is carried by the shaft receiving motive power and a source circulates in the auxiliary winding a D.C. current of such amplitude that it compensates the torque tending to rotate the field winding with respect to the shaft.

Abstract: A dielectric film layer C.sub.2 is deposited on a transparent film layer C.sub.1 in which two optical transverse TE and TM modes propagate and is provided with a metallic coating having reflecting properties on the face which is not in contact with the layer C.sub.1. The thickness of the layer C.sub.2 is such that phase-tuning is effected along the direction of propagation of the two TE and TM waves within the wave guide as essentially constituted by the layer C.sub.1.

Abstract: Electronic equipment for scoring fencing bouts in which each fence is provided with a unit including a transmitter of a predetermined frequency and an aperiodic receiver. Each fencer's unit also includes a pulse generator whose pulses are used to distinguish valid touches, touches on the opposing weapon and the ground as well as touches on other conductive surfaces.

Abstract: A development tank for the daylight development of photographic material comprises inner and outer vessels, axially reciprocal in relation to one another, and defining between them an annular space in which the material to be treated is placed in the absence of light, this space then being closed light-tight by a lid. The inner vessel provides a water bath by which the treatment solution is heated and maintained at the desired temperature. The treatment solution is introduced into a closable conduit and is delivered to the annular space and discharged therefrom by the axial movement of the vessels relative to one another.

Abstract: A trailer-type vehicle for handling, displacing and transporting a load of substantial length and especially a boat is provided with a longitudinal frame element which surrounds the load, at least one transverse frame element having a substantially arch-shaped structure which is moved into position above the load, a lifting device mounted on at least one frame element and a wheel system. Means are provided for modifying the width of the longitudinal frame element as a function of the width of the load and for displacing at least one transverse frame element with respect to the longitudinal frame element.