Abstract: A slot machine is provided with a plurality of motors each arranged for rotating a respective one of a plurality of reels. A first drive device starts driving the motors in response to a start signal, and stops driving the motors in accordance with stop signals sequentially generated for respective ones of the motors. A second drive device is provided for driving a part of the motors when it is determined that there is at least an effective winning symbol combination, to rotate those ones of the reels which stop with symbols of the obtained winning symbol combination, again in a special fashion to make an appeal to the winner.

Abstract: A slot machine having observation windows formed in a 3.times.3 matrix on a front panel. Behind each observation window, a reel is mounted which is rotated by a pulse motor. When a reel stops, one symbol appears in the central area of each observation window. Eight winning lines are provided including three vertical lines, three horizontal lines and two diagonal lines. These winning lines are made valid in accordance with the number of inserted coins. The reels are stopped in a predetermined order. If a combination of symbols on a valid winning line is a winning symbol combination, coins corresponding in number to the rank of the winning symbol combination are paid out.

Abstract: An endless belt conveyor is disposed between a coin receptacle and a hopper. Coins stored in the coin receptacle fall from an outlet at the lower portion of the coin receptacle and are supported and held on the endless belt. When the endless belt circulates, coins on the endless belt are transported toward the hopper and dropped into the bucket. The bucket is provided therein with a first sensor for detecting a lower limit of the number of coins and a second sensor for detecting an upper limit of the number of coins. In response to a signal from the first sensor, the endless belt circulates, and in response to a signal from the second sensor, the endless belt stops. The coin receptacle has a supply port for replenishment with coins. A protective cover is securely fixed to the supply port, the protective cover having a lattice pitch allowing a coin to pass but preventing a human hand from entering.

Abstract: A formed thermoplastic resin article is made of a thermoplastic resin and a foamed elastic polymer finely dispersed in the thermoplastic resin. The formed thermoplastic resin article can be produced by blending an elastic polymer, in which an endothermic foaming agent decomposable at a temperature of at least 160.degree. C. was mixed in advance at a temperature lower than a decomposition temperature of the endothermic foaming agent, in a thermoplastic resin and then plasticizing and forming the resultant resin blend at a temperature at least equal to the decomposition temperature of the endothermic foaming agent.

Abstract: A method for cleaning the interior of a molding machine having a residual thermoplastic resin after molding comprises the step of cleaning the interior of a molding machine with a cleaning composition which comprises:(A) 100 parts by weight of a thermoplastic resin;(B) 2 to 100 parts by weight of a polyalkylene oxide glycol having a viscosity-average molecular weight ranging from 10,000 to 1,500,000; and(C) 0.5 to 5 parts by weight, per 100 parts by weight of the sum of the foregoing components (A) and (B), of an alkylsulfate represented by the following general formula (I):R.sub.1 --O--SO.sub.3 M (I)wherein R.sub.1 represents an alkyl group having 8 to 20 carbon atoms and M represents an ion selected from the group consisting of K, Na and NH.sub.4 or a fatty acid salt represented by the following general formula (II):R.sub.2 COOX (II)wherein R.sub.2 represents an alkyl group having 7 to 23 carbon atoms and X represents an ion selected from the group consisting of K, Na, Ca, Mg and Zn.

Abstract: A slot machine has inner and outer coaxial overlying reels. Each reel is formed with symbols on its transparent outer circumferential frame. The inner and outer reels are rotated independently by motors. The outer reel has a transparent outer circumferential frame to allow a player to see symbols on the inner reels. A combined symbol of superposed inner and outer reel symbols is produced.

Abstract: A serial printer comprises a printing head, a carrier for carrying the printing head, a platen, and a pair of guide members extending in parallel with the platen for supporting the carrier in a movable manner. An openable member is attached openably to the casing of the printer and supporting one of the guide members. Engaging receivers are formed in the carrier for allowing the one guide member to engage therewith and disengage therefrom in a direction substantially perpendicular to the extending direction of the one guide member. Engaging brackets may be mounted on the printing head for coming into and out of engagement with one of the guide members at a right angle with respect to the extending direction of the one guide member. Moving members may be supported movably in the casing of the printer for supporting the one guide member, when moved, to bring the one guide member into and out of an engagement with the engaging brackets.

Abstract: A dot printer includes: a platen and a printing head encased in a printer case in the vertical direction; a paper housing portion provided laterally of the platen; a feed roller disposed laterally of the printing head for feeding a paper taken out of a paper housing portion to the printing head; and a discharge roller disposed laterally of the printing head for discharging the paper outside of the case. With this construction, the printer can be made thin and can also be miniaturized.

Abstract: A rubber-modified styrene type resin composition excellent in sliding properties which comprises 100 parts by weight of a rubber-modified styrene type resin and 2.2 to 3.2 parts by weight of dimethyl silicone oil having a viscosity ranging from 5,000 to 15,000 centistokes at 25.degree. C., the styrene type resin comprising 3 to 8% by weight of a rubber-like polymer which is present in the form of microgels having an average particle size ranging from 0.6 to 1.2 micron, and having an intrinsic viscosity of 0.53 to 0.65 and the content of methanol-soluble matter in the range of from 0.5 to 1.5% by weight, is herein disclosed. The rubber-modified styrene type resin composition is excellent in its sliding properties and thus does not provide a molded product having poor appearance during molding. The rubber-modified styrene type resin composition is used to form mechanical parts in the fields of household appliances and OA apparatuses.

Abstract: A resin composition having excellent antistatic properties and practical physical properties. The resin comprises (i) a styrene resin; (ii) a polyethylene oxide having a viscosity-average molecular weight ranging from 15,000 to 1,200,000; (iii) either or both of a (meth) acrylate resin and an oxide selected from the group consisting of titanium oxide, zinc oxide and magnesium oxide; (iv) either a surfactant selected from specific sulfonic acid salts or a surfactant selected from specific alkyl sulfates; and, optionally, (v) a (poly)ethylene glycol having an average molecular weight ranging from 62 to 1,200. The resin composition also provides excellent resistance to hot water.

Abstract: A styrene resin composition excellent in sliding properties which comprises 100 parts by weight of a styrene polymer, 2.0 to 4.0 parts by weight of dimethylsilicone oil having a viscosity ranging from 5,000 to 15,000 centistokes at 25.degree. C. and 0.05 to 8 parts by weight of maleic anhydride monomer or 0.05 to 50 parts by weight of a maleic anhydride-styrene copolymer containing at least 5% by weight of maleic anhydride monomer units is herein disclosed. The styrene resin composition is excellent in sliding properties and thus does not provide a molded product having poor appearance during molding. The styrene resin composition is used to form mechanical parts in the fields of household appliances and office automation apparatuses.

Abstract: In a method for setting paper on a printer wherein a paper guide having an extending portion extending parallel to a platen is provided opposite to the platen on a printing head reciprocating in parallel with the platen, the paper guide having an opening for exposing an ink ribbon at a position opposite a nose portion of the printing head to provide for printing on a paper inserted between the printing head and the platen, the method including the steps of placing the printing head at a position where the extending portion of the paper guide faces the paper and the opening in the paper guide is displaced away from the paper, feeding the paper between the extending portion and the platen to a position where an upper side of the paper passes beyond the opening, shifting the printing head to substantially a central portion of the cut paper, and thereafter feeding the paper to a printing start position.

Abstract: A print head for use in an impact printer has resilient driving arms for actuating print hammer or print elements at a high speed. The arms extend radially inwardly, and are connected together at their outer ends and formed of a single rolled metal. The arms differ in at least one of length, width, thickness or shape, according to the angles that the longitudinal directions of the hammers make with the direction in which the metal has been rolled, so that the hammer can have the same natural frequency or produce the same resilient force.

Abstract: In a power transmission device, guide elements, which are to be secured to a mounting portion of a driver, are axially fitted through and circumferentially arranged on a brake element concentrically disposed around a hollow tubular shaft which is adapted to be fitted on an output rotary shaft of the driver for rotation therewith. The brake element is urged by springs engaging the respective guide elements, toward an operating element which axially moves the brake element. An input element concentrically secured on the hollow tubular shaft and a friction plate concentrically and rotatably disposed thereabout have first and second openings, respectively, which are axially alignable with the guide elements, whereby the guide elements and the springs can be mounted into and removed from the power transmission device, through the aligned first and second openings.

Abstract: The suspension insulator of the present invention has an improved shape of the embedding portion of a metal pin, which is an embedding multi-step portion constructed with an inverted spherical convex trapezoid upper expanded portion having a larger surface at the top end and an inverted frust-conical lower expanded portion succeeding to the upper expanded portion. By using such a metal pin, the stress distribution of the insulating body is made uniform and therefore a small size and light weight of suspension insulator having high tensile strength is obtained.

Abstract: A process for producing polyphenylene oxide which comprises contacting a phenolic monomer with oxygen in the presence of a catalyst composed of a manganese (II) salt and an ortho-hydroxyazo compound represented by the following formula: ##STR1## wherein A and B represent identical or different arylene ring having a valency of at least 2 and having an oxy group and an azo group directly linked to the ortho carbon atoms of the arylene ring and R represents hydrogen or lower alkyl group, or in the presence of said catalyst and an amine, in a polymerization solvent containing a base and thereby subjecting said phenolic monomer to an oxidative polymerization.

Abstract: A resin composition based on a polyphenylene ether comprising 99 to 1 part by weight of a polyphenylene ether copolymer derived from 99.5 to 85 mole-% of 2,6-dimethylphenol and 0.5 to 15 mole-% of 3-methyl-6-tert-butylphenol and 1 to 99 parts by weight of a styrene polymer (making up 100 parts by weight in total); and said resin composition further containing 0.1 to 100 parts by weight of a rubber-like polymer for 100 parts by weight of the said resin composition. These resin compositions have excellent mechanical strength, heat resistance, and moldability and are suitable as molding resin materials in practical use fields.

Abstract: An improved process for producing a photo-curable composite material using a liquid photo-curable resin, which comprises holding a liquid photo-curable resin with a screen material between two films, at least one of the films having photo-transmitting properties, and passing the films holding the liquid photo-curable resin and the screen material through a gap (e.g. between two rollers). The process of the present invention can produce photo-curable composite materials useful for preparing various stencils for screen printing, textile printing, or the like at a low cost and with less production of defects.

Abstract: A photo-curable composite material used for preparing various stencils for screen printing, textile printing or the like, which comprises a flat, flexible and photo-transmitting thin film (A); a flat and flexible film (B); a liquid photo-curable resin and a flat screen material, said films (A) and (B) being air-tightly bonded to each other at the peripheral portion thereof to form a flat inner space therein, said liquid resin being filled in said inner space to form a layer and said screen material also being placed in the inner space substantially in parallel with the inner walls of the films (A) and (B).

Abstract: A rear seat apparatus for cars which have a sitting space and a luggage space, the spaces communicating with each other but being normally substantially sectioned by a foldable rear seat back. In order to attain a comfortable position of the rear seat for occupants thereof, while also attaining variable capacity of the luggage space, a reclining device and an operating mechanism therefor is provided on the rear seat back. The operating mechanism is provided in the upper middle part of the back surface of the rear seat back for maximum operating convenience.