Abstract: A thermoplastic, liquid-crystalline, wholly aromatic polyimide ester comprising(a) at least one structural unit derived from an aromatic dicarboxylic acid,(b) at least one structural unit derived from a substituted hydroquinone having an aralykyl substituent group in its benzene nucleus, and at least one structural unit selected from (c) structural units derived from carboxy-N-(carboxyphenyl)phthalimides and (d) structural units derived from carboxy-N-(hydroxyphenyl)phthalimidesis able to be molded by injection molding, has excellent dimensional stability and dimensional accuracy in both flow direction and a direction making a right angle with the flow direction, and is also excels in strength, elastic modulus, and heat resistance.

Abstract: A cover plate assembly for wall-mounted electrical wiring devices includes a plate frame disposed on a wall surface as surrounding a wall opening in the wall surface. The wall opening is provided to receive therein one or more electrical wiring devices such as switches. The plate frame has a window through which a portion of the wiring device extends outwardly. A face plate is placed over the plate frame to entirely conceal the same. The face plate is made from a plastic material and has a center opening through which a portion of the electrical wiring device is exposed to be accessible from outside of said face plate. Also included in the assembly is an under plate which is to be fixed with respect to the wall surface for holding said plate frame therebetween. The under plate is made from a flat metal stamping and secured to the rear of the face plate for reinforcement of the same.

Abstract: A wholly aromatic copolyester, comprising; the structural units I, II, and III represented by the following formulas, ##STR1## wherein in the structural unit I, the two carbonyl groups are present on the benzene ring at the meta- or para- position to each other andin the structural unit II, Ar is an aryl group, each of X and Y independently is hydrogen or an alkyl group of 1 to 3 carbon atoms, and Z is hydrogen or a halogen,the molar ratio of the structural unit III to the structural unit II (III:II) being from 26:74 to 60:40.The wholly aromatic copolyester exhibits well-balanced characteristics in moldability, heat resistance, solvent resistance, and heat stability, and is useful especially as the material for electric or electronic parts and car parts.

Abstract: A vector operation instruction issue control method includes a meter for measuring an elapse of a time period corresponding to a sum of the number of vector elements of a vector operation instruction and a difference between the number of pipeline stages of two arithmetic functions. When a vector operation instruction using an arithmetic function having a larger number of pipeline stages is issued to a vector arithmetic unit, the meter is activated to measure a time period corresponding to a sum of the number of vector elements of the vector operation instruction and the stage number difference.

Abstract: A thermoplastic wholly aromatic copolyimide ester consisting essentially of the recurring unit (I) represented by the following formula: ##STR1## the recurring unit (II) represented by the following general formula: ##STR2## wherein n is an integer of 0 or 1; the recurring unit (III) represented by the following formula: ##STR3## wherein the two carbonyl groups are present at para position or meta position of the benzene nucleus to each other; and the recurring units (IV 1) or (IV 2) represented respectively by the following formulas: ##STR4## wherein --Q-- is --O-- or --CO--and each Q is present at para position or meta position of the benzene nucleus respectively to the imide group, or ##STR5## with the proviso that the recurring units (I), (II), (III), and (IV) are bonded to form ester bonds, and wherein the thermoplastic wholly aromatic copolyimide ester has a melt viscosity of from 1.0 to 1.0.times.10.sup.5 Pa.multidot.s as measured at a shear stress of 0.025 Mpa and at a temperature of from 300.degree.

Abstract: A process for producing aromatic polyester which comprises mixing5 to 70 mol % (as calculated by converting the repeating unit mentioned below into one molecule) of polyester (A) with the repeating unit represented by general formula (I), ##STR1## and 95 to 30 mol % of an acyloxyl aromatic carboxylic acid (B), with 0.1 to 20 mol % based on the total amount of (A) and (B), of a diacyloxy aromatic compound (C) represented by general formula (II), ##STR2## and reacting the resulting mixture. The aromatic polyester is excellent in elasticity and mechanical strength, as well as toughness.

Abstract: Disclosed herein are a thermoplastic wholly aromatic polyimide ester consisting essentially of structural units represented by the general formulas I, II, III, and IV: ##STR1## wherein X and Y are either --O-- or --CO-- and may be either identical with or different from each other, n is an integrer of 0 or 1, X group and imide group and imide group in unit II are present at para or meta position to each other, two carbonyl gorups in unit IV are present at para or meta position to each other, and each end of units I, II, III, and IV is bonded to another end trough ester bond, and wherein the polyimide ester has a melt viscosity of 1.0 to 1.0.times.10.sup.5 Pa.multidot.s measured at a shear stress of 0.025 MPa and a temperature of 300.degree. to 400.degree. C.; and a process for producing the thermoplastic wholly aromatic polyimide ester.

Abstract: A multipolar circuit breaker having a lower case portion with side frame plates and a central frame plate facing the side frame plates on its two major sides, the central frame plate having a deep central groove which forms two flexible central frame plate arms each facing one of the side frame plates to form a nacelle sized to receive one of the switching mechanisms, each of the side frame plates and the arms of the central frame plate having, proximate to its free end, at-least-one inwardly facing protrusion, each of which is in a position opposed to the corresponding protrusion on the companion plate forming the nacelle and, after the respective switching mechanisms are installed, overlapping the side plates of each of the switching mechanisms, the arms of the central frame plate having been deflected to permit insertion of each switching mechanism, deflection in testing or use being prevented by inserting a high dielectric strength plastic stiffener in the groove separating the arms in the central frame p

Abstract: A high-frequency cable connector for relaying coaxial cables led from two different sides to each other comprises a case body having a receptacle for a terminal plug of one of the cables, a holder for holding an inner contactor for contacting therewith the inner conductor of a cable within the case body, a conducting shield plate secured to the bottom of the case body while exposing part of the holder to the exterior, and a cap plate rotatably mounted to the shield plate and holding the other coaxial cable. The connector allows the two coaxial cables to be connected in an extremely simpler manner, the connector itself can be installed along with any other type or same type of wiring devices, and respective components can be assembled in a single direction so as to render efficient its mass production.

Abstract: A circuit breaker has an insulated casing including an upper casing portion and a lower casing portion. A switching mechanism is attached to a frame which is seated in a positioning recess portion of the lower casing portion. The frame and switching mechanism are captured by extending support arms of the lower casing portion and are fixedly secured thereto to permit operation of the switching mechanism prior to final assembly of the upper and lower casing portions.

Abstract: A coaxial cable connector a body of which has, on one surface, a receptacle including first and second terminal members for electric connection thereto of an end plug of a coaxial cable and, on other surfaces, means for mounting the connector, in common, to a generally used mounting frame for house wiring modules, to be contributive to simplification of house wiring works and prevention of any deterioration of the electric connection.

Abstract: In an information processing device comprising an instruction decoder, an instruction processing unit, and a memory unit, the instruction decoder classifies a sequence of instructions into a first group for the instruction processing unit and a second group for making the memory unit cooperate with the instruction processing unit. The instructions of the first group are temporarily retained in an instruction stack register before delivery to the instruction processing unit while the instructions of the second group is directly delivered to the memory unit. A state indication unit produces a plurality of flags representative of internal states of the instruction processing unit. A monitoring unit monitors the instructions, the retained first-group instruction, and the flags to enable the instruction processing unit, the memory unit, and the instruction stack register and to change the flags.

Abstract: The present invention is directed to a printing ink composition containing the reaction product of 5 to 100 parts by weight of a phenolic resin and about 100 parts by weight of a resin modified with an acid. The phenolic resin is prepared by condensing an appropriate 4-9 carbon alkylphenol with formalin. The modified resin is prepared by reacting 1 to 15 parts by weight of an appropriate unsaturated carboxylic acid and/or anhydride with about 100 parts by weight of the reaction product of 5 to 100 parts by weight straight-chain .alpha.-olefin with about 100 parts by weight of an appropriate pentacyclic compound, such as cyclopentadiene and/or dicyclopentadiene.

Abstract: Disclosed is a circuit breaker switch configuration in which a conducting member in the switch for connecting a switch terminal to a switch contact is shaped to form a loop current path, such that when a current flows in the switch, a magnetic field is established in the vicinity of the switch contacts. Such a magnetic field, which is appropriately oriented, serves to confine a plasma generated by an arc discharge which occurs between the switch contacts when the switch is initially opened. The confinement of the arc discharge plasma by the magnetic field reduces the extent of the plasma and permits the use of smaller arc-extinguishing means in the switch and affords more rapid extinguishment of the arc discharge.

Abstract: A hot melt composition is provided which comprises (1) a hydrogenated resin (II) having a softening point ranging from 50.degree. C. to 140.degree. C., said hydrogenated resin (II) being prepared by hydrogenating a copolymer resin (I) obtained by copolymerizing 20 to 60 wt % of a component (A) selected from the group consisting of five-member cyclic compounds each having a conjugated double bond and represented by the general formula (A) given below and Diels-Alder addition products thereof (A):GENERAL FORMULA (A): ##STR1## wherein H is hydrogen; R is an alkyl group having from 1 to 3 carbon atoms; m and n are zero or integers of not less than 1 and are in the relation of m+n=6;with 25 to 70 wt % of a codimer (component B) of said five-member cyclic compound and an aliphatic conjugated diolefin having 4 to 5 carbon atoms and 2.

Abstract: According to the present invention, there is disclosed a process for producing a novel resin which comprises the step of copolymerizing a five-member cyclic compound (component A) having a conjugated double bond and represented by the general formula (A) given below: ##STR1## wherein R is an alkyl group having from 1 to 3 carbon atoms; m and n are zero or integers not less than 1 and are in the relation of m+n=6; and/or a Diels-Alder addition product thereof (A) with a co-dimer (component B) of said five-member cyclic compound and 1,3-butadiene by heating a mixture of 20 to 90 parts by weight of said component A and 80 to 10 parts by weight of said component B at a temperature of from 200.degree. C. to 350.degree. C. Also disclosed are a process for hydrogenating said novel resin to produce a novel hydrogenated resin and resin compositions containing said hydrogenated resin.

Abstract: According to the present invention, there is disclosed a process for producing a novel resin which comprises the step of copolymerizing a five-member cyclic compound (component A) having a conjugated double bond and represented by the general formula (A) given below:GENERAL FORMULA (A): ##STR1## wherein R is an alkyl group having from 1 to 3 carbon atoms; m and n are zero or integers not less than 1 and are in the relation of m+n=6; and/or a Diels-Alder addition product thereof (A) with a co-dimer (component B) of said five-member cyclic compound and 1,3-butadiene by heating a mixture of 20 to 90 parts by weight of said component A and 80 to 10 parts by weight of said component B at a temperature of from 200.degree. C. to 350.degree. C. Also disclosed are a process for hydrogenating said novel resin to produce a novel hydrogenated resin and resin compositions containing said hydrogenated resin.

Abstract: An offset printing ink composition is provided which contains a vehicle resin (III) prepared by reacting 5 to 100 parts by weight of a phenolic resin (component D) with 100 parts by weight of a modified resin (II) modified with an acid, said phenolic resin (component D) being prepared by the condensation of a phenol including an alkyl substituent group having 4 to 9 carbon atoms with formalin, said modified resin (II) modified with an acid being prepared by reacting 1 to 15 parts by weight of a component C selected from the group consisting of unsaturated carboxylic acids, unsaturated carboxylic acid anhydrides and mixtures thereof with 100 parts by weight of a resin (I) obtained by copolymerizing 5 to 50 parts by weight of a component B selected from the group consisting of drying oils, fatty acids and mixtures thereof with 100 parts by weight of a five-member cyclic compound (component A) having a conjugated double bond or bonds and a Diels-Alder addition product thereof, such as cyclopentadiene or dicyclop

Abstract: Offset ink compositions are disclosed which contain as a vehicle a resin (III) obtainable by the steps of:(a) copolymerizing 100 parts by weight of a five-membered ring compound having a conjugated double bond, represented by the general formula: ##STR1## (wherein H is hydrogen, R is an alkyl group having 1 to 3 carbon atoms, and m and n are each 0 or an integer of 1 or more such that m+n=6) and/or a Diels-Alder addition product of said five-membered ring compound (Component A), with 10 to 150 parts by weight of a codimer (Component B) of said five-membered ring compound and 1,3-butadiene;(b) reacting 100 parts by weight of the resulting hydrocarbon resin (I) with 1 to 15 parts by weight of an unsaturated carboxylic acid or an anhydride thereof (Component C); and(c) reacting at elevated temperatures 100 parts by weight of the resulting acid-modified resin (II) with 5 to 100 parts by weight of a phenol resin (Component D) obtainable by the condensation of a phenol with formalin.