PURPOSE:To increase life without reducing high rate discharge performance by forming on the electrode plate surface a high porous layer obtained by deposition oxide powder by using thermal spraying represented by plasma spraying. CONSTITUTION:An oxide layer of metal such as Si, Al, Ca, Zr, or Y which is acid resistant and electrochemically inactive is formed on the surface of an electrode plate in...

PURPOSE:To prevent the deterioration of the life performance occurring as the height of a plate increases in a sealed type lead storage battery that uses a fine glass fiber mat, by improving the method of liquid injection. CONSTITUTION:When an electrolyte is injected from an injection port 4, it penetrates from the upper part of an assembled element under the injection port 4, flows through a gap ...

A multiple source, rotating, tomographic x-ray scanner includes x-ray sources adaptably configurable to operate in two modes. The first mode of operation, in which the sources are planarly configured, permits high speed, single slice scans to be made. The second mode of operation in which the x-ray sources are configured so as to scan distinct, but contiguous planes, permits multiple slices to be ...

This invention relates to a method and an apparatus for avoiding untwisting during the formation of a binding of two fiber bundles. The rotational direction of deformation members acting on the fiber bundles is selected to be different in different groups of deformation members in order to reproduce or to increase the original twist during the binding operation.

a. Method for cleaning intended particularly for food products as well as device permitting implementation of this method. b. Method characterised in that the products to be cleaned are introduced into a reservoir 1 filled with water, pressurised air is conveyed into the bottom 8 of the reservoir and these products are transferred towards a discharge opening 4 located at the end of the reservoir o...

A lawn umbrella having a shade of a rectangular configuration supported by four ribs, the free end of each rib being received in a pouch at a respective corner of the shade. The other ends of two of the ribs are pivotably connected to a collar slidable on the mast, the collar being lockable in operative position by a thumb screw. The other ends of the other ribs are pivotably connected to the top ...

The subject of the present invention is a method for moulding a hollow body, by pressurising and heating a pulverulent or flakey (laminated) material. According to the invention, use is made, for the inner element or core of the mould, of a material whose coefficient of expansion is higher than that of the material constituting the outer element of this mould. ;

LA PRESENTE INVENTION A P...

A hydraulic cement mix including hydraulic cement, aggregate, sufficient water to effect hydraulic setting of the cement, and an additive comprising a mixture of an alkali or alkaline earth or ammonium salt of thiocyanic acid, such as sodium, potassium, lithium, calcium or magnesium thiocyanate, and an alkanolamine, such as triethanolamine, the additive being present in an amount sufficient to inc...

A resin composition of a polyvinyl chloride-based resin expandable into foamed bodies by heating comprises a polyvinyl chloride-based resin having an average degree of polymerization not exceeding 2000 and a pore volume not exceeding 0.20 ml/g and impregnated with a volatilizable foaming agent which is a hydrocarbon compound or a halogenated hydrocarbon compound having a boiling point not exceedin...

The invention provides a process for making ferro-nickel shot from a molten alloy bath including a granulating adjuvant containing silicon. The resulting shot can be used as soluble anodes for use in electroplating in which a ferro-nickel plating is applied to a substrate.

To obtain better quality plastisol processing powders, VC homo and copolymer dispersions produced by emulsion or microsuspension polymerisation are subjected for a period of 1-60 minutes to an electric field characterised by the conditions grad E = 600-1000 N/As and dl/dA = 1-10 mA/cm<2>. Less than 35% of the solid is precipitated on the electrodes and is treated separately, the remaining latex be...

A process for producing a polyimide tube which comprises applying a solution of polyamide acid obtained by reacting a biphenyltetracarboxylic acid dianhydride represented by the general formula with an aromatic diamine in an organic polar solvent to at least one surface of a polyimide film, drying thereafter the film with heating to convert a part of the polyamide acid into the imide ...

Caprolactam polymeric substrates are conditioned for electroless plating by etching with an aqueous solution of organic acid containing from 2 to about 10 carbon atoms, preferably an acetic acid compound, such as trichloroacetic acid.

The sound-damping element (1), partic. for a partition in a ship, comprises at least three layers (3-5). The outer layers (3,5) pref. consist of rock-wool. The intermediate layer(s) (4) consist(s) of glass wool. The outer layers contain (pref. steel) U-sections (6-11) which pref. extend over the entire length of the element and have their flanges pressed into the layers (3,5), such that their webs...

Stable suspensions of water-soluble polymers in a nonsolvent hydrocarbon medium, their preparation and their use for improving the assisted recovery of oil are described. These suspensions consist of at least one aliphatic or aromatic liquid hydrocarbon which is not a solvent for water-soluble polymers, into which there are introduced (per 100 parts by weight of the said liquid hydrocarbon) from 0...

L'INVENTION CONCERNE UN APPAREIL DE GUIDAGE INERTIEL D'UNE SONDE DESTINEE A CONTROLER UN SONDAGE.

LA SONDE 18 INTRODUITE DANS LE SONDAGE PORTE DES ACCELEROMETRES 32, 34, 36 QUI PRODUISENT DES SIGNAUX REPRESENTANT L'ACCELERATION DE LA SONDE SUIVANT TROIS AXES, ET UN ENSEMBLE GYROSCOPIQUE 40 A LASER QUI PRODUIT DES SIGNAUX DE ROTATION ANGULAIRE. UN SIGNAL REPRESENTANT LA VITESSE DE LA SONDE...

The operating mechanism has a casing (12), a retainer (14) for attaching the casing to the brake's housing (or similar), and a force transfer member (24) moving axially w.r.t. the casing. The force transfer member has a stop (28) on that part (26) which lies in the casing. A connection piece (42) is fixed in the casing a variable axial distance from the stop. An elastic part (46) extends between t...