In a process and device for continuous centrifugal extraction two liquid phases (L, T) of different densities are passed in countercurrent relation through an extraction vessel (11) rotating about a centrifuge rotor axis (C). Each of the liquid phases (L, T) is caused to flow circumferentially about the centrifuge rotor axis (C) from one end to the other of a circumferentially elongate extraction ...

PURPOSE:To inexpensively supply a large quantity of light by absorbing and condensing solar rays from various angles as the position of the sun changes without using a costly large-sized lens and bearing correction position. CONSTITUTION:This condensing blank material is formed by incorporating a reflecting material 7, such as silver or aluminum in a fine powder form into optical glass or quartz g...

PURPOSE:To prevent an active material from peeling and dropping following charge and discharge during manufacturing process or after the assembly of a battery by using a polar plate having an adhesive layer containing SiO2 or an adhesive layer containing SiO2 and a conductive substance between the active material and an electric collector. CONSTITUTION:After an adhesive layer containing SiO2 or an...

PURPOSE:To provide a polar plate manufacturing method for lead storage batteries by which filling with a paste with low viscosity is carried out without dropping the paste. CONSTITUTION:A paste paper sheet 2 is placed the down side of a cast electric collector 1. In this condition, together with the paste paper sheet 2 in the down side, the collector 1 is rolled by an oil hydraulic press 3. Conseq...

PURPOSE:To readily manufacture a sealed lead-acid battery which uses granular powder as an electrolyte holder and has stable characteristics by filling the space between a layer of powder filled into the battery and a sealing plug with foaming resin. CONSTITUTION:In a sealed lead-acid battery, granular powder 14 of high porosity and a large specific surface area fills the gap between and around a ...

PURPOSE:To prevent decrease in electrolyte so as to enhance the life characteristic of a sealed lead-acid battery by making the number of negative plates greater than that of positive plates by two or more, and disposing positive plates adjacent each other at other than both ends of the group of pole plates, and disposing an acid resistant, nonconductive thin plate between the adjacent negative pl...

PURPOSE:To provide a high-performance lead-acid battery which takes advantage of porous particles and is easy to manufacture by providing the battery with porous powder for filling a battery jar, a porous body located at the upper portion of the battery to isolate the inside of the battery jar, and a valve chamber having a valve leading to the outside. CONSTITUTION:A group 2 of pole plates compris...

Apparatus adapted for use in a water clarification system which removes particles of greater than a predetermined size from the clarified water includes a screen or a pair of concentric screens positioned in a clarified water storage area between an inlet and a clarified water outlet. One or more spray heads for direct a shower of high pressure filtered clarified water at the outlet side of the sc...

A splicing head has a turbulence chamber which is circular in cross section. The turbulence chamber is cylindrical or has a cylindrical center portion and conical outwardly enlarging end portion, and an insertion slot. Air inlet passages open into the cylindrical portion along tangents and in opposite directions so that air under pressure through the passages creates circumferential flow in opposi...

An improved spandex composition is provided in which a polymeric hindered tertiary amine stabilizer is present. The polymeric amine is poly(diisopropylaminoethyl methacrylate/hydroxybutyl acrylate) or poly(diisopropylaminoethyl methacrylate/ethyl acrylate).

The invention relates to a method of manufacturing a bar comprising a powdery core jacketed with a metallic material. The objective of the invention is to obtain a bar in which the powder is sufficiently densified, but the metal jacket is not deformed. This objective is achieved using a method consisting in: - filling a metal cylinder (1) with a powder (5), - placing a plug (7) on top of thi...

Un support (1) en forme de coupelle est solidarisable à l'extrémité (20) du pied (2) d'un meuble et comporte un fond (11) et un rebord périphérique (12) saillant d'un côté dudit fond (11), créant une cavité (10) dans laquelle est introduit et solidarisé un patin de feutre (3) dont une face (30) est adhésive.

Here are disclosed method and apparatus for rapidly and accurately determining fiber orientation of paper being in a standstill or moving in a paper machine and useful for grade study and quality control of the paper. The projector means projects an unpolarized light beam perpendicularly to a surface of the paper to be tested, then a light beam reflected by the paper surface is caught by eight or ...

The invention relates to a further development of the sole support device protected in parent patent No. 395 293. In order to prevent creeping of the strap 103 in this sole support device 100, the invention proposes a bimetallic strip 105 forming a spring and bent into a U-shape whose web 105 is accommodated in a recess 102d in the supporting body 102 and which keeps the strip 103 in a more or les...

The invention relates to a novel herbicide composition, which comprises the (S) enantiomer or racemate of a compound of the general formula (I), (I) wherein R stands for a methyl or ethyl group, as active ingredient in an amount of 0.01 to 95% by weight together with one or more solid and/or liquid carrier(s), preferably grist(s) of native or synthetic material(s) and/or with inert solv...

The invention relates to polyelectrolytes and their use in the fractionation of blood and other proteinaceous substances. The filterability, drying characteristics and physical form of water-insoluble, cross-linked polyelectrolytes containing amine-imide functional groups are employed without substantially diminishing the protein adsoprtion capacity of said polyelectrolytes by heating the pol...

A process for wrapping articles, particularly large or heavy articles, with a stretch wrap film is disclosed. The film is at least 45 mu m thick and is made from a polymer blend, such blend comprising (i) from 1 to 20 wt.-% of at least one polybutene having a number average molecular weight of from 500 to 10,000 and (ii) a polyethylene selected from the group consisting of at least one linear eth...

Compositions based on ethylene vinyl alcohol copolymer and certain ethylene copolymers containing acid derivative comonomers, CO or SO2 comonomers, and monomers with pendant anhydride functionality, exhibit improved toughness and better compatibility with styrenic polymers, acrylic polymers, and vinyl chloride polymers.

Liquid impervious, biodegradable films are disclosed. In particular, the films comprise a blend of an interpenetrated network of destructurized starch with ethylene/acrylic acid copolymers or ethylene/vinyl alcohol copolymers, and an aliphatic polyester such as polycaprolactone. Diapers, sanitary napkins, pantiliners, and the like, containing backsheets prepared from the foregoing materials are al...

PURPOSE:To produce a masking film which is hardly influenced by humidity change. CONSTITUTION:On both surfaces of a plastic film 1, coating layers 2, 2' having lower permeation of water vapor than the plastic film are uniformly formed, and at least one coating layer is covered with a light-shielding permeates very little water vapor from air, and the amt. of vapor to the plastic film in the center...