Abstract: A stopper for a caster which has a push-button slidably inserted into a mounting hole radially perforated at a frame for journaling wheels, and a stopper rotor so mounted rotatably in parallel with an axle at the push-button as to be elastically urged by a spring in an outward direction and for stoppers formed at the ends thereof on the peripheries of the wheels. An actuator is formed at the stopper rotor, and a cam groove is formed in the mounting hole of the push-button for stepwisely engaging the actuator by the pressing operation of the push-button and the recoiling operation of the spring. Thus, the wheels can be readily locked and unlocked effectively with only one push-button repeatedly operated in pressing the push-button.

Abstract: The present invention discloses a spacer retainer in a cross roller bearing.

Abstract: Compounds having the formula ##STR1## wherein R.sub.1 denotes hydrogen atom, halogen group atom or methyl radical,R.sub.2 denotes cyclohexyl radical, phenyl radical or phenyl radical substituted with methyl radical or nitro radical, andX denotes oxygen atom or sulfur atom,are useful for the control of phytophthora diseases and downy mildew of vegetable and fruit trees.The compounds of formula [I] can be prepared by reacting compounds having the formula ##STR2## wherein R.sub.1, R.sub.2 and X are defined previously, are reacted with a carbonic acid derivative in the presence of an acid-binding agent.

Abstract: There is a method for the production of 3-phenylpyrrole derivatives having the general formula ##STR1## wherein X is halogen, nitro or haloalkyl having 1 to 3 carbon atoms;n is 0, 1 or 2; andZ is hydrogen or halogen;which comprises reacting a compound having the general formula ##STR2## wherein X and n are as previously defined; andY is hydrogen or halogen;with ammonia or aqueous ammonia in an organic solvent.A compound having the general formula [I] is useful as fungicide or intermediate thereof.

Abstract: A tail gate opening/closing device for a dump truck in which bracket means are affixed at the upper rear ends of both side walls in the rear part of the carrier section. One end part of a bracket arm is pivotally arranged at each of the ends of the bracket means and each of the other ends is pivotally fastened to the end of a tail gate arm. When material transported such as sand, soil, gravel, etc. is dumped, the carrier section is raised to an angle with the ground causing the material transported to exert pressure on the tail gate so as to open the tail gate in a rearward direction and, at the same time both the bracket arm and the tail gate arm are rotated upwards and the fulcrum of the tail gate arm is also moved upwards. In this way, the tail gate is opened smoothly and the discharge port is opened to the widest extent possible.

Abstract: A method of preserving an organ which comprises first perfusing step of injecting blood uniformly perfusing choline from an artery or portal vein of the excised organ while gradually lowering its temperature and exhausting it from the vein continuing until the liquid is lowered to the first proximity lowering temperature before its solidifying temperature, second perfusing step of perfusing refrigerating defect preventing dimethyl sulfoxide or glycerin instead of the blood uniformly perfusing liquid while gradually lowering its temperature from the first proximity lowering temperature continuing until the agent becomes the second proximity lowering temperature before its solidifying temperature, third perfusing step of perfusing the final perfusing liquid of low solidifying temperature lower than alcohol or ether instead of the agent while gradually lowering the liquid from the second proximity lowering temperature continuing until the liquid becomes the third proximity lowering temperature before its solidif

Abstract: The present invention relates to a record playing device adapted to be attached to a cabinet of a record player.In order to facilitate the assembling of the record player as much as possible, the record playing device of the invention has a unit construction comprising a single base plate 1 which carries, at least: a turn table driving motor having a turn-table shaft and a pinion; a gear wheel for intermittent engagement with the pinion; a returning plate adapted to be moved reciprocatingly to the right and left in accordance with the rotation of the wheel gear; a sliding lever adapted to move reciprocatingly to the left and right to actuate link pawls pivoted to the gear wheel thereby to initiate the mutual engagement between the pinion and the wheel gear; and a microswitch for controlling the operation of the turn-table driving motor and adapted to be opened and closed in accordance with the positional relationship between the sliding lever and the returning plate.

Abstract: This invention relates to a tripod for cameras, which is capable of regulating an angle at which the leg units thereof are opened, to thereby allow an object to be photographed at a low angle, and which consists of a tripod head, leg units each of which is oscillatably supported on the tripod head and each of which has projections at that end portion thereof which is above the oscillatably supported portion thereof, and regulators each of which is supported on a shaft in such a manner that the regulator is urged in a direction at right angles to the relative leg unit and each of which has alternately-arranged projections and recesses in that position thereon which is on the side of the tripod head and in opposition to the projections provided on the leg units coming into contact, when the leg units are opened in the usual condition, with the projections provided on the regulators, to thereby allow the leg units to be set at the most-frequently-used leg-opening angle, the projections provided on the relative l

Abstract: Apparatus for cooling or heating articles carried on a spiral conveyor helically rotating round the outer periphery of a drum, wherein the diameter of the drum is reduced, a blower port and a suction port being provided on the peripheral wall encircling the spiral conveyor, said blower port and suction port being adapted to communicate with each other with interposition of a heat exchanger and fans, air cooled or heated in the heat exchanger being blown through the blower port, the air being spontaneously bifurcated to both sides of the small diameter drum to be recombined at the suction port, the recombined air being cooled or heated in the heat exchanger for circulation through the blower port so that the drum is cooled or heated speedily and efficiently through the whole periphery thereof, thereby enabling not only to economize the cost and time required for cooling or heating but also to minimize the dimensions of the whole apparatus for the reduction of the space necessitated for the installation.

Abstract: A compound of the formula ##STR1## wherein typical representations of X, Y and Z is oxygen or sulfur; R.sub.1 is methyl; R.sub.2 is phenyl substituted with chlor, methyl, methoxy, nitro or methylenedioxy; and R.sub.3 is cyclohexyl, methylcyclohexyl or tetrahydropyranyl, is useful as an acaricide.

Abstract: The ball screw assembly disclosed makes use of a shaft consisting of two parts, one of them being formed as a spline and the other one containng at least two screws spaced from one another at a predetermined distance, wherein the respective screws having a different pitch are in screw engagement with a corresponding ball screw nut and the ball spline unit is fitted onto the spline. Actually, these two screws are in engagement with corresponding stationary and movable ball screw nuts. The stationary nut being held in a housing, while said movable ball screw nuts is adapted to move forward or backward by way of rotation of the shaft. The feed is controlled by way of mechanical or electromagnetic actuation so that quick feed, rough feed, slow feed or exact feed is ensured by the single shaft.

Abstract: Water-dispersion adhesives stable in storage and dilution dispersion and excellent in adhesive properties for extrusion lamination which comprise a dispersion of a resin in water, wherein the resin (A) is obtained from a reaction of a polyepoxy compound (B) with a reaction mixture (C) of a polyethyleneimine (D) and a monoepoxy compound (E).

Abstract: A method of exfoliating the coating of a coated optical fiber is described. A crack in the coating layer of the optical fiber is produced by bending means, cleaving the coating into a plurality of cleaved strip pieces while longitudinally enlarging the crack, and then cutting the strip pieces with an advantageous exfoliating tool. The exfoliating tool thus used is constructed to conveniently cleave the coating layer of the optical fiber and to cut the cleaved strip pieces. It does not damage the optical fiber upon exfoliating of the coating layer from the coated optical fiber, and can efficiently exfoliate the coating of the optical fiber.

Abstract: A compound of the formula ##STR1## wherein typical representations of X, Y and Z is oxygen or sulfur; R.sub.1 is methyl; R.sub.2 is phenyl substituted with chlor, methyl, methoxy, nitro or methylenedioxy; and R.sub.3 is cyclohexyl, methylcyclohexyl or tetrahydropyranyl, is useful as an acaricide.

Abstract: A method of freezing fertilized ova, spermatozoa or the like which has the steps of containing fertilized ova, spermatozoa or the like in a buffer solution at an irregular position in a tube, and cooling the same so that a buffer solution contained in an area containing no fertilized ova, spermatozoa or the like become lower in temperature than the buffer solution containing the fertilized ova, spermatozoa or the like with a desired refrigerant to freeze the second buffer solution to produce crystalline nuclei, and then cooling the nuclei so that the nuclei grow to the first buffer solution. And, an apparatus for freezing fertilized ova, spermatozoa or the like which can carry out the above method. Thus, the survival rate of the fertilized ova, spermatozoa or the like can be raised, and the fertilized ova, spermatozoa or the like can be readily frozen under an automatic control by simple cooling means.

Abstract: A sample cell is located in an inner tank which is surrounded by a heat insulating container. Inert gas is circulated through the inner tank from separate heating and cooling paths. A pressure regulator is located in the sample cell.

Abstract: An endless ball bearing arrangement for relative longitudinal movement between a table having a longitudinal edge portion and a longitudinal side portion, one of said edge or side portions is movable with respect to the other portion. The arrangement consists of a pair of elongated straight metal block bearing bodies located in one of said longitudinal portions facing the opposite longitudinal portion. The front part of these bearing bodies has a W-shaped cross section laying on its side. The outer arms of the W-shape extend towards the top and bottom of the bearing bodies with the center of the W-shape pointing towards the back of the bearing bodies. A pair of bearing first races in the bearing bodies extend parallel at the junction of the arms of the W-shape and the center part, across the length of the bearing bodies. These are the races for the loaded balls. Second races for unloaded balls parallel to the first races are disposed away from said first races in the bearing bodies.

Abstract: This invention deals with a hinge for opening or closing a dust cover of record players, which, in order to keep the hinge body from being exposed, to prevent the opened dust cover from excessively projecting rearwardly and to stably sustain the dust cover at an intermediate opening angle, comprises: a cabinet; a dust cover; a slider disposed vertically slidable in the rear portion of the cabinet on each side; a spring urging the slider upward; a support member removably mounted to the dust cover and rotatably mounted on the cabinet by a hinge pin; and a follower provided to the support member and adapted to contact the head of the slider. The hinge of this invention may be provided, in addition to the above construction, with a means to stably sustain the dust cover at an intermediate opening angle.

Abstract: There is described a method of producing a rod-shaped base material for an optical transmission fiber which has the steps of advantageously measuring the refractive index distribution of the transparent glass rod obtained. The method contemplates heating and sintering the glass soot unit before the step of covering quartz glass material onto the transparent glass rod and removing the outer peripheral part of the transparent glass rod in which the value of the refractive index is largely displaced from a reference in a predetermined range. The rod-shaped base material thus produced exhibits very wide band width transmission characteristics.

Abstract: An elongated tooth brush handle houses a motor at the bottom of the handle. The motor output shaft is surrounded by an inner magnet which in turn is coupled to an outer magnet. When opposite poles face each other the inner magnet will turn the outer magnet. The outer magnet turns on a bearing which will give it longitudinal motion. The outer magnet is coupled to flexible shaft which passes out of the head of the handle to an output coupling through a slit in the handle head. A small rotary brush can be affixed to the output coupling.