A continuous flow device for separation of particles of differing densities in a centrifugal force field. Very small particles of differing densities that are normally very difficult or impossible to separate in the useful commercial gravity separation devices can be separated because of the increased settling force due to the centrifugal force field and also the buoyant force on the particles of ...

An apparatus for making a rotationally symmetrical body formed of crisscross-wound layers includes a winding mandrel, a carriage reciprocating along the mandrel and a thread laying assembly mounted on the carriage. The assembly has a pivotal device, and four thread laying rollers mounted for rotation on the pivotal device. The shafts of the rollers extend parallel to one another and are situated a...

1. Batería eléctrica de libre mantenimiento, del tipo que comprenden, en cada celda, placas positivas y negativas y separadores de gran porosidad, de fibra o celulares, en los que queda impregnado todo el electrolito, caracterizado porque la totalidad de las placas positivas y negativas de cada celda, forman dos bandas contínuas independientes, entre las que va dispuesto el separador, también en f...

1. Batería eléctrica de libre mantenimiento, del tipo que comprenden, en cada celda, placas positivas y negativas y separadores de gran porosidad, de fibras o celulares, en los que queda impregnado la totalidad del electrolito, caracterizada porque la totalidad de las placas positivas y negativas de cada celda forman al menos dos bandas continuas independientes, entre las cuales va dispuesto el se...

Polyoxyalkylene surfactants for cellular foams can be prepared by reacting under free radical polymerization conditions (1) an unsaturated polyoxyalkylene adduct and (2) an esterified unsaturated dibasic acid ingredient, wherein unsaturated diester ingredient (2) either completely or partially comprises a fumarate diester.

An air tight and fluid tight cover for padded bodies, mattresses and the like. The cover has a top, a bottom and a plurality of side parts. At least one opening provides ventilation between the interior of the cover and the ambient atmosphere. At least two of the side parts are formed by at least an interior, middle and exterior layer of material. Air passage openings offset with respect to each o...

Liquid hydrocarbon fuel compositions are provided containing antiknock quantities of ashless antiknock agents comprising selected primary diamines.

A reaction injection molded article formed with threads and a method of molding same, wherein threaded members, such as threaded inserts, helicoils, etc., are positioned in the cavity of a reaction injection mold, and molding material is injected into the cavity to form the threaded members into a unitary structure with a body of the reaction injection molded article. The threaded members are secu...

An organic, high-molecular weight polyester containing substantially chain members of the formula -O-X-O-Y- wherein X is at least one member of the group consisting of and Y has the formula having an inherent viscosity of at least 1.0 dl/g, preferably at least 1.2, dl/g measured at 30 DEG C. in a solution of 0.5 g of the polyester in 100 ml of a mixture of 60% by weight of ph...

A microprogram control system in which the processing speed of a microprogram is increased and the capacity of the microprogram memory is reduced. The decoder previously provided in microprogram control systems to decode the contents of the instruction register are omitted to attain an increased processing speed and the instruction decoding function is integrated into the microprogram memory to at...

A sunshade having a cover which can be folded together in fan-like manner and is supported by at least three support struts, at least the outer two support struts having one end pivoted to a bearing member which is swingable around at least one horizontal axis on a stand bar and can be locked in position thereon and the outer two support struts can be pivoted via a spreading slide by one spreading...

A data communication network having a plurality of nodes interconnected with a communication link, wherein each node shares given ones of its data sets in common with other nodes in the network, and each node is operative to update any shared data set, except if one of the other nodes is also seeking to update the same data set, in which case the node having the higher priority prevails. Each node...

METODO PARA PREPARAR UN POLIURETANO INACTIVADO.CONSISTE EN REVESTIR EL POLIURETANO CON UNA CAPA PROTECTORA DE UN POLIMERO QUE CONTIENE GRUPOS HIDROXILO CUYOS GRUPOS HIDROXILO SON CAPACES DE REACCIONAR CON GRUPOS ISOCIANATOS LIBRES DEL POLIURETANO, COMPRENDIENDO EL POLIMERO POLI (ALCOHOL VINILICO), POLI (ACETATO DE VINILO) PARCIALMENTE HIDROLIZADO O UN COPOLIMERO QUE CONTIENE ALCOHOL VINILICO O POL...

The disclosure relates to a storable polyol pre-mixture for making flame-retardant polyurethane foam plastics consisting of a mixture of a polyester polyol or polyether polyol and an ammonium polyphosphate as a flame-retardant agent. The pre-mixture contains more particularly an ammonium polyphosphate which corresponds to the general formula (I) H(n-m)+2(NH4)mPnO3n+1 (I) in which n stands for an i...

The process comprises grinding and crushing of solid fraction made up of vegetable residue, the organic fraction of solid domestic or industrial residues and sludge from residual water cleaning. This is followed by incorporation in a liquid fraction consisting of olive juice, purin molasses and/or wine drawn from the bees. Mixing and rotation, and fermentation to break the vegetable fibres and giv...

Apparatus is provided for detecting ferrous contamination in a fluid such as engine transmission lubricant. The apparatus has two spaced apart electrodes, a magnetic flux extending between the electrodes the lines of force of which are substantially rectilinear, the electrodes being connectable to a circuit for signalling when an electrically conductive path is formed from one electrode to the oth...

A fluidized bed furnace is provided in which liquid fuel can be burned. Injectors extend up through an imperforate bed plate which properly mix the oil or other liquid fuel with the fluidizing air causing evaporation of the oil. This mixture is passed through restricted openings as it enters the fluidized bed, thus resulting in high velocity flow and fairly even fuel and combustion distribution th...

A coherent, rigid, heat stable, low density, low thermal conductivity, strong, impact resistant, water repellant thermal insulation material, having an average maximum linear shrinkage of 2% or less at temperatures up to 1200 DEG F., made from expanded perlite, alkali metal silicate solution, kaolin clay, and organic fiber. Additions of methylcellulose and polydimethyl silicone liquid enhance the...