Abstract: The invention provides a bath composition for electroless solder plating comprising:(A) about 5 to about 120 g/l of at least one compound selected from the group consisting of alkanesulfonic acids and alkanolsulfonic acids,(B) about 10 to about 100 g/l of at least one compound selected from the group consisting of tin salts of alkanesulfonic acids and tin salts of alkanolsulfonic acids,(C) about 10 to about 100 g/l of at least one compound selected from the group consisting of lead salts of alkanesulfonic acids and lead salts of alkanolsulfonic acids,(D) about 10 to about 200 g/l of at least one compound selected from the group consisting of thiourea and thiourea derivatives, and(E) about 1 to about 250 g/l of at least one compound selected from the group consisting of monocarboxylic acids, dicarboxylic acids, tricarboxylic acids and salts thereof.
Abstract: A bracket for orthodontics having a bracket body made of a composite resin material and a thin layer of a synthetic resin material in a dental adhesive. The synthetic resin layer is laminated on the base surface of the bracket body in such a manner that the composite resin material of the bracket body and the synthetic resin of the thin layer are mingled with each other at the boundary therebetween. The thin resin layer is composed of polymethyl methacrylate having an average molecular weight of 1000,000 or less or a polymethacrylate copolymer.
Abstract: A handler used in a testing system for semiconductors includes an arm shaped conveyer unit for conveying a semiconductor device from a first end thereof to a second end thereof and vice versa,a loader/unloader unit which is provided at the first end of the conveyer unit, a setting unit which is provided at the second end of the conveyer unit, and an adjusting unit for adjusting the setting unit on a testing position which is a predetermined position with respect to a test head. The conveyer unit includes a ring shaped conveyer belt which is rotated between the first end of the conveyer unit and the second end thereof, and a plurality of holders each of which is fixed on an outer surface of the conveyer belt and holds the semiconductor device.
Abstract: The invention provides a shaped resin article for optical use which is a three-dimensional reaction product cast from a molding composition essentially comprising a tetrahalobisphenol A epichlorohydrin polycondensate-(meth)acrylic acid adduct (A) and a polyisocyanate compound (B). In another aspect of the invention, the resin article is cast from a composition containing a styrenic or ester monomer (C) in addition to (A) and (B). In still another aspect, the resin article is cast from a composition containing a phenolic compound (D) in addition to (A), (B) and (C).
Abstract: A floating type composite magnetic head includes a head core fixed to a slider formed of nonmagnetic material. In the head core, a pair of magnetic core halves are abutted against each other with nonmagnetic material such as SiO.sub.2 or the like interposed therebetween. The first and second magnetic core half members have first and second gap forming surfaces to be abutted against each other to define a magnetic gap (g), respectively. A first groove is formed on the second gap forming surface. A glass layer is formed in the first groove. A first thin film including a ferromagnetic metal thin film is selectively formed on the first gap forming surface. A second thin film including a ferromagnetic metal thin film is selectively formed on the second gap forming surface so that at least a portion except the surface of the glass layer in the second gap forming surface is exposed. A second groove is formed on the exposed second gap forming surface adjacent to the first groove.
Abstract: A reflective type screen comprising a reflective surface layer a polarizing plate layer located in front of said reflective surface layer and a diffusion layer located in front of the polarized plate layer, wherein the reflective surface layer, the polarizing plate layer and the diffusion layer are laminated together using an adhesive to form an integral structure is disclosed. In addition, a reflective type screen comprising a reflective surface layer subjected to mirror-surface processing and laid on a flexible substrate, a polarizer and a diffusion layer arranged for covering the polarizer therewith wherein the reflective surface layer, the polarizer and the diffusion layer are laminated together using an adhesive to form an integral structure is disclosed.
Abstract: An electricity supply device, connected to an electric contact of a heater on a tray, is disposed on the side wall at the upper part of a support member which supports and guides a tray and which is formed on the side wall of a receiving chamber. The electricity supply device has a) a conductive plate spring placed in pressure contact with an electric contact of a heater and b) a conductive pin connected to a power source and is embedded into a plastic mold. The plastic mold is disposed into a casing which is mounted to the side wall of the receiving chamber to secure an insulating property. The plate spring makes positive contact with a contact of the heater.
Abstract: The present invention provides a collar and clothes for animals having at least one side face which contacts the animal's fur or skin, which comprises an acrylic fiber and/or a nylon fiber having copper sulfide absorbed therein. This invented collar or clothes has a deodorant effect on the animal's body smell, bad breath and otorrhoea smell when animals put it on, and the deodorant effect is continuous as long the animals have one on. Further the inventor found that the collar or the clothes is safe for animals.
Abstract: The invention deals with a string for use in rackets used for tennis and badminton and so on. These are wound around the periphery of a monofilament center core in a mixed condition, wrapping monofilaments of a large diameter and a small diameter and the wrapping monofilaments are covered with a coating resin such that a part in a periphery side of the large diameter wrapping monofilament is uncovered. Moreover, the elongation of the wrapping monofilaments of large diameter and small diameter is greater by 5-40% than the elongation of monofilament center core. This string is superior in ball control and has a higher knot strength.
Abstract: This invention provides a halogen-containing thermoplastic resin composition comprising a halogen-containing thermoplastic resin (A) consisting of 100 to 0.1 weight percent of a thermoplastic polyurethane-vinyl chloride graft polymer (a1) with a polyurethane content of 10 to 90 weight percent which is produced by polymerizing vinyl chloride in the presence of a thermoplastic polyurethane and 0 to 99.9 weight percent of another halogen-containing polymer (a2) and a melt-moldable vinyl alcohol polymer (B), the proportion of melt-moldable vinyl alcohol polymer (B) being in the range of 0.1 to 100 parts by weight to 100 parts by weight of halogen-containing thermoplastic resin (A).
Abstract: An apparatus for executing a subroutine and an interrupt processing routine of a bank switching scheme has a plurality of memory banks (4, 5, 6), a program for controlling bank switching being stored in the same address space (90) in each of the plurality of memory banks. When there is a necessity of switching the banks to the second memory bank (5) or (6) during the execution of a processing program in the first memory bank (4) to execute a subprogram, the bank switching control program in the first memory bank is called so that switching is performed from the first memory bank to the second memory bank, and the bank switching control program in the second memory bank is called. The subprogram is called in accordance with this bank switching control program in the second memory bank.
Abstract: A storage section for storing a video monitoring equipment for an airliner and the video monitoring equipment which moves to a visible position are connected by two long cylindrical springs. One of the springs is urged in the direction of the storage section of the airframe. The other spring is made of a shape-memory alloy on which a specific shape is memorized in heated condition. When the second spring is heated and takes the specific shape, the video monitoring equipment is moved to the visible position together with the move of the second spring going against the urging force of the first spring. When the heating of the second spring is stopped, the video monitoring equipment is moved to the storage section along with the movement of the first spring by the urging force of the first spring.
Abstract: A bolt feed device for feeding a welding bolt to a welding section of a welder is installed separately from an electrode. The device includes a feed device body holding an end portion of a welding bolt feed pipe; a feed rod installed for movement forward or rearward relative to the feed device body; a bolt grasping section having a bolt receptacle and installed to the feed rod so that when the feed rod is at a retreat position the bolt receptacle is positioned at a lower end portion of the feed pipe, and when it is at an advance position the bolt receptacle is positioned at the welding section; and an inserting device having a welding bolt inserting cylinder and installed to the feed rod so that when the feed rod is at the retreat position the welding bolt inserting cylinder is positioned at a lateral side of the feed pipe, and when it is at the advance position the welding bolt inserting cylinder is rotated and positioned onto the bolt receptacle of the bolt grasping section.
Abstract: A system for assembling a motorcar vehicle body is divided into a first-floor portion and a second-floor portion. The first-floor portion has a main working line provided with a vehicle body assembling station, a floor panel assembling line, and a floor panel parts working line. The second-floor portion has another floor panel parts working line and a roof panel working line. There are provided apparatuses for charging floor panel consitituting parts worked in the floor panel parts working line disposed on the first-floor portion to a floor panel assembling line, and for lowering floor panel constituting parts worked in the floor panel parts working line disposed on the second-floor portion from the second-floor portion to charge them to the floor panel assembling line so that these constituting parts are combined together in the floor panel assembling line to assemble the floor panel.
Abstract: An emulsifying agent for emulsion polymerization comprising at least one compound selected from the group consisting of (i) betaine esters of polyoxyalkylene alkyl ethers, (ii) betaine esters of polyoxyalkylene alkylphenyl ethers, (iii) betaine esters of polyoxyalkylene dialkylphenyl ethers, (iv) betaine esters of polyoxyalkylene phenyl ethers having two or more benzene nuclei, and (v) betaine esters of polyoxyalkylene polyol ethers. This emulsifying agent is suitable for use in the emulsion polymerization of polymer emulsions capable of forming a film having an excellent water resistance, transparency, and smoothness.
Abstract: A veneer lathe including a knife blade which is adjustable to different pitch angles. The veneer lathe includes a feed carriage mounted for movement on guides fixed to a lathe frame and a blade carriage supporting the knife blade. The blade carriage is a massive member pivotally mounted by trunnions on the feed carriage so as to rotate under the force of gravity. A support device is operative between the feed carriage and the blade carriage for supporting the blade carriage against the force of gravity in an angularly biased position relative to the feed carriage. The lathe also includes a control responsive to different types of wood for allowing the means for supporting the blade carriage to retract at different rates under the force of gravity exerted on the blade carriage.
Abstract: A capacitor comprising a multiplicity of needlelike metal particles dispersed in a synthetic resin film and so oriented that the axes thereof are positioned in parallel to the surface of the film, and an electrode provided on each of opposite surfaces of the synthetic resin film, the metal particles having a diameter of up to 0.1 .mu.m, a length 5 to 10 times the diameter and a specific surface area of 30 to 100 m.sup.2 /gr and being covered with a dielectric oxide over the surface thereof.
Abstract: A dielectric filter includes: a plurality of coaxial resonators and external connectors; each of the coaxial resonators includes a dielectric block having an outer peripheral surface and an inner peripheral surface parallel to a common axis and having two end faces, a conductive layer formed on the outer and inner peripheral surfaces and on one of the end faces, and a depressed part for accepting the external connection means and formed by removing a portion of the conductive layer on at least the outer peripheral surface in the vicinity of the other end face; and the external connectors includes a dielectric substrate, and an external connection electrode formed on the dielectric substrate and capacitance-coupled with the conductive layer on the inner peripheral surface.