Abstract: The present invention relates to a method for purification of liquids. Fur particulars, the present invention relates to a method for purifying more precisely liquids in atomic power related fields, using a mixture of a polymer in which carboxyl groups are grafted onto a polyamide or a polyester as a cation exchanger and an anion exchanger.

Abstract: The multi-position electrical switch includes a printed circuit (PC) board arranged in a casing and supporting an array of stationary contacts encircling a light emitting element fixed on the PC board. A resilient rubber sheet covers the PC board and supports an array of movable contacts arranged opposite the stationary contacts. A control knob having a central opening rests on the rubber sheet in the region of the movable contacts. The bottom of the knob is formed with a tubular projection communicating with the central opening of the knob and extending to the level of an opening in the rubber sheet around the light emitting element.

Abstract: A multiple electrical switch comprising a casing, a control knob supported on the top edge of the casing for tiltable movement in four directions, a retainer horizontally mounted within the casing and a conversion knob tiltably supported by the retainer and having an upper portion projecting through the central aperture of the control knob. Upper and lower base plates are disposed on respective opposite sides of the retainer, with each of the upper and lower base plates defining a printed circuit board and having a plurality of fixed connecting contacts. The switch further comprise an insulating elastic sheet having a central portion for covering the upper portion of the conversion knob and opposite side peripheral portions for covering respective top surfaces of the upper base plate and each portion including a swell including a movable connecting contact corresponding to a respective one of the plurality of fixed connecting contacts of the upper base plate.

Abstract: A filter for tobacco smoke containing a fibrous ion exchange resin and a fibrous ion exchange resin wherein at least a part of the fiber is fibrillated or split for use in making the filter is disclosed. The filter efficiently removes substances harmful to the human body, e.g., ionic, polar, carcinogenic, and mutagenic substances, and nicotine and tar from tobacco smoke.

Abstract: This invention relates to a method of ion-exchange and/or adsorption, and to a method of producing pure water. More specifically, this invention relates to a method of ion-exchanging and/or adsorbing an unnecessary product or a useful product in a liquid to be treated. Concretely, this invention relates to a method of ion-exchange and/or adsorption and to a method of producing superpure water by first treating the liquid with an ion-exchange resin, and then treating the liquid with an ion-exchange fiber.

Abstract: A ship according to the present invention comprises an inner hull plating (1) and an outer hull plating (2) connected together solely by transverse bulkheads (4) and connecting longitudinal members (3) fixed to the bulkheads (4). Each bulkhead 4 comprises a rectangular double plate central portion and a rectangular ring form box (11) surrounding the central portion. The box (11) includes a flaring part (11a) internally provided with generally triangular ribs (10) and a peripheral part (11b) of a constant thickness receiving part of the connecting longitudinal members (3).

Abstract: A metal ion that inhibits enzyme deactivation is bonded to a carrier and inhibits enzyme deactivation when contacted with a substrate for the enzyme. A carrier-bound metal ion such as ions of iron is particularly suitable for inhibiting deactivation of glucose isomerase when isomerizing glucose to fructose. Glucose isomerase life is remarkably prolonged by contacting carrier-bound iron ions with a glucose substrate solution prior to isomerizing with glucose isomerase.

Abstract: A ship having at least its side portions and bottom portion comprised of a double hull construction consisting of an inner hull plating and an outer hull plating connected together solely, except for transverse bulkheads disposed in spaced apart relation in the lengthwise direction of the ship, by a plurality of connecting longitudinals fixed to the bulkheads, at least one of the connecting longitudinals having anti-buckling means extending in the lengthwise direction thereof and tripping means extending in the widthwise direction thereof. According to this arrangement, external forces exerted on the ship may be transmitted through the connecting longitudinals to the transverse bulkheads so that the inner and outer hull platings may be protected from buckling. The absence of transverses crossing the longitudinals considerably facilitates the automatization of welding operation.

Abstract: A pet litter formed by pelletizing a mixture of a chopped paper material and a material having a high content of chlorophyll.

Abstract: An enzymatically active product for use in isomerization of glucose into fructose is provided. The active product comprises an organic polymeric material predominantly comprised of a monovinyl aromatic compound polymer having .beta.-aminopropionamidomethyl group as side chains represented by the formula I: ##STR1## wherein R.sub.1 is selected from H, C(1-6) alkyl and C(2-6) hydroxyalkyl, R.sub.2 is selected from C(1-6) alkyl, C(2-6) hydroxyalkyl, ##STR2## (where X, Z.sub.1 and Z.sub.2 are selected from H and C(1-6) alkyl, and n is from 2 to 6), or R.sub.1 and R.sub.2 form together with the N atom, to which R.sub.1 and R.sub.2 are bonded, heterocyclic structure of the formula: ##STR3## where A is --CH.sub.2 --, --O-- or --NR.sub.6 -- (wherein R.sub.6 is H or C(1-6) alkyl), and R.sub.3, R.sub.4 and R.sub.5 are selected from H and methyl. The organic polymeric material has glucose isomerase immobilized with the .beta.-aminopropionamidomethyl group side chain of the organic polymeric material.

Abstract: An enzymatically active product for use in isomerization of glucose into fructose is provided. The active product comprises an organic polymeric material predominantly comprised of a monovinyl aromatic compound polymer having .beta.-aminopropionamidomethyl group as side chains represented by the formula I: ##STR1## wherein R.sub.1 is selected from H, C(1-6) alkyl and C(2-6) hydroxyalkyl, R.sub.2 is selected from C(1-6) alkyl, C(2-6)hydroxyalkyl, ##STR2## (where X, Z.sub.1 and Z.sub.2 are selected from H and C(1-6) alkyl, and n is from 2 to 6), or R.sub.1 and R.sub.2 form together with the N atom, to which R.sub.1 and R.sub.2 are bonded, a heterocylic structure of the formula: ##STR3## where A is --CH.sub.2 --, --O-- or --NR.sub.6 -- (wherein R.sub.6 is H or C(1-6) alkyl), and R.sub.3, R.sub.4 and R.sub.5 are selected from H and methyl. The organic polymeric material has glucose isomerase immobilized with the .beta.-aminopropionamidomethyl group side chain of the organic polymeric material.