Abstract: A mechanial seal having a split seal ring which is covered by a support ring over the outer face with a predetermined gap and is fastened in a circular shape by a O ring inserted in the predetermined gap. The split seal ring is easily assembled by a tool which includes a split ring body. The split ring body has a basic inner face contacting to a surface of a rotary shaft, an end face contacting to the end face of the split seal ring an a projection for inserting the O ring into the gap.
Abstract: The present invention is to produce non-oriented electrical steel sheet by a hot direct rolling. The slab is directly sent to the hot rolling without the brief soaking, whereby others than AlN inevitably precipitated check the precipitation of AlN, a roughing and a finish rolling are performed at determined reduction rates, and a delay time is taken between the roughing and the finish rolling, and besides a finish rolling is performed at not more than Ar.sub.3 so that precipitating nuclei of AlN are effectively introduced into the steel, and uniform and coarse AlN precipitation is formed by a coiling at temperature of more than 700.degree. C., thereby to enable to provide uniform and satisfied ferrite grain growth at the recrystallization annealing.
Abstract: A continuous conveyor apparatus is provided, comprising tandem wheels and coaxial wheels appropriately positioned. Four endless link chains are turned around the wheels, and a plurality of carrying vessels having arms are connected to the four link chains through the arms. The coaxial wheels have a pair of inner wheels and a pair of outer wheels coaxially arranged. The tandem wheels have a pair of inner wheels and a pair of outer wheels horizontally arranged with a space therebetween. The apparatus is durable, lightweight and can be produced at low cost.
Abstract: A lyophilized preparation comprising 6-(3-dimethylaminopropionyl)forskolin, a buffer agent having a pH value of about 3 to about 6 when dissolved, and, as an optional ingredient, a sugar. The lyophilized preparation is excellent in resolubility and stable in both pH and residual percentage.
Abstract: In the transmission of information, particularly long-distance speech signals, between a first and a second station, the information is transmitted from the first to the second station by means of a code alternating current of predetermined frequency and phase-state, and from the second station to the first station by means of a code alternating current which has the predetermined frequency and a phase shifted by 90.degree. with respect to the predetermined phase. The phase of the code alternating current transmitted from the second to the first station can be driven by means of the phase of the code alternating current transmitted from the first to the second station. The code alternating currents may contain code elements in the form of half waves or periods of differentiated amplitudes of the code alternating current, which is essentially sinusoidal. In order to use multiplication, two code-alternating-currents, whose phases are shifted by 90.degree.
Abstract: The present invention relates to an unsaturated group-containing polycarboxylic acid resin produced by reacting an epoxidized compound of a condensate of a phenolic compound and an aromatic aldehyde having a phenolic hydroxyl group with (meth)acrylic acid, and further reacting the reaction product with polybasic carboxylic acid or an anhydride thereof; a composition comprising the resin and a cured product of the resin or the composition.The composition according to the present invention is developable with an aqueous alkaline solution and suitable for a solder resist composition which is excellent in heat resistance, solvent resistance, adhesion, electric insulation property and storage stability.
Abstract: A tool for applying liquids has a nozzle portion which is provided with a spatulate section having a discharge orifice in the side thereof from which the liquid emerges. The spatulate section is mounted on a tool body which is freely rotatable, so that the liquid may be applied to the surface of a tubular object in a convenient manner.
Abstract: A process for producing p-phenylenediamine or a derivative thereof which comprises reducing p-nitroaniline or a derivative thereof by hydrazine in the presence of an aromatic quinone compound or an aromatic dihydroxy compound.
Abstract: This invention relates to oxetanocin-related compounds represented by the following formula (I): ##STR1## [in formula (I), R.sub.1, Y and B have the following meanings: (a) R.sub.1 represents --CH.sub.2 OH or --CH.sub.2 OCO-(alkyl),(b) Y represents ##STR2## provided that R.sub.2 is --H, --OH or --CH.sub.2 OH and R.sub.3 is --H, --OH, halogen atom, --CH.sub.2 OH, lower alkyl group, --CH.sub.2 -N.sub.3, --CH.sub.2 -F, --N.sub.3, --COOH, --NH.sub.2, --CH.sub.2 OSO.sub.3 H or --CH.sub.2 OCO-(lower alkyl), and(c) B represents a residue of purine base,(d) provided that R.sub.1 and R.sub.3 cannot simultaneously represents --CH.sub.2 OH]and their salts which have activities such as an antiviral activity and the like and are expectedly useful as a pharmaceutical and the like.
Abstract: A reactive dye represented by the formula (I), ##STR1## wherein R represents --NH.sub.2 or --NHC.sub.2 H.sub.4 SO.sub.3 M, and M's independently represent Li.sup..sym., Na.sup..sym., K.sup..sym. or .sup..sym. NH(C.sub.2 H.sub.4 OH).sub.3, provided that at least one of M's represents Li.sup..sym. or .sup..sym. NH(C.sub.2 H.sub.4 OH).sub.3. This reactive dye easily gives a stable liquid composition and is useful to dye cellulosic or polyamide fibers.
Abstract: Oxetanocin derivatives represented by formula: ##STR1## wherein X represents H or ##STR2## or a pharmacologically acceptable salt thereof exhibit an anti-viral activity. Anti-viral compositions comprising the oxetanocin derivatives or their pharmacologically acceptable salts as the effective ingredient are also provided.
Abstract: A non-dustable granular dye comprising dye particles in granular form coated with a coating agent selected from the group consisting of a water-soluble high-molecular weight substance, a monosaccharide and an oligosaccharide.
Abstract: The invention comprises of four magnet system for dispersing and recombining precisely several isotopes for injection into a tandem accelerator. The precise horizontal focusing of the ions is achieved magnetically using curved boundaries of the magnets which have normal entrance and exit boundaries for the central trajectories. The precise vertical focusing is achieved mainly by the electric slot lenses in the first version, with small adjustments of the focusing of the isotopes, other than the central trajectory isotope, by curved boundaries of the magnet. It is the use of the electric slot lenses, or a similar electric device with one dimensional focusing, which in part decouples the focusing action in the vertical plane from the horizontal plane, that permits the use of four fold magnetic symmetry and boundary curvature to accomplish true recombination of the isotopes in a practical and compact device.
March 1, 1990
Date of Patent:
May 7, 1991
University of Toronto Innovations Foundation
Abstract: The present invention is to produce non-oriented silicon steel sheets having excellent magnetic properties in dependence upon a hot direct rolling, wherein the slab is directly sent to the direct rolling without maintaining the heat and soaking, whereby others than AlN precipitated during hot rolling check the precipitation of AlN, and a delay time is taken between the roughing and the finish rolling so that precipitating nuclei of AlN are introduced into the steel, and uniform and coarse AlN precipitation is formed by a subsequent annealing treatment, thereby to enable to provide uniform and satisfied ferrite grain growth at the recrystallization annealing.
Abstract: The present invention relates to a lubricating method for warm rolling of high Si steel, where warm rolling is carried out on the high Si steel at temperatures between 200.degree. and 600.degree. C., while a lubricant is sprayed to working rolls or assistant rolls, the lubricant having been produced by mixing a solid lubricant endurable to rolling temperatures into a heat resistant grease.
Abstract: An agent for relieving radiogenic or drug-induced side effects, characterized by comprising a spergualin derivative of the following formula (I):NH.sub.2 --C(.dbd.NH)--NH--R.sub.1 --R.sub.2 --CONH--R.sub.3 --CONH--(CH.sub.2).sub.4 --NH--(CH.sub.2).sub.3 --NH--Xwherein R.sub.1 represents --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.6 ##STR1## R.sub.2 represents --(CH.sub.2).sub.2 -- or --CH.dbd.CH--, R.sub.3 represents --(CH(OH)--CH(OMe)--, --CH.sub.2 -- or --(CH.sub.2).sub.m --CH(OH)--(CH.sub.2).sub.n -- (m represent an integer of 0,1 or 2 and n represents an integer of 1 or 2)X represents a hydrogen atom or a group formed by removing a hydroxyl group from a carboxyl group of an amino acid,or a pharmacologically acceptable salt thereof as an active ingredient.
Abstract: A multistage pushbutton device used to drive a push switch has a base, a first and second stage pushbutton members and drive members to drive the push switch. The first and second stage pushbutton members have first and second elastic arms respectively connected with the base at the one end thereof and a pushbutton is respectively provided on the other end of the arm. An elastic second arm is longer than said first arm and is placed at the position behind the first arm where it does not overlap the first arm in the back and forth direction and at least the part of said second arm overlaps at least the part of said first pushbutton in the back and forth direction.
Abstract: This invention relates to a water-in-oil type emulsion explosive comprising an aqueous oxidizer solution, an oily material, an emulsifier and hollow microspheres, in which the whole or a part of the oily material is replaced with a polymer which is oil-soluble and has a ladder structure in the molecule.
Abstract: A 2-acylamino-5-halogenated-cinnamic acid derivative represented by the formula (III) which is useful as an intermediate for producing medicines and agricultural chemicals: ##STR1## wherein Ac represents a lower acyl group, R represents a hydrogen atom or a lower alkyl group, and X.sub.1 represents a halogen atom. This derivative is obtained by reacting a compound represented by the formula (I), ##STR2## wherein Ac and X.sub.1 are as defined above, and X.sub.2 represents a bromine or iodine atom, with acrylic acid or its ester represented by the formula (II),CH.sub.2 .dbd.CHCOOR (II)where R is as defined above, in the presence of a palladium catalyst, a tri(unsubstituted- or substituted-phenyl)phosphine and an acid-binding agent.