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 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.

Abstract: A surface treatment process for improving surface properties of a timber as to wetness by exposing the timber to a plasma mixture of an inert gas and a reactive gas at a near atmospheric pressure. Prior to being exposed to the plasma mixture, the timber is treated to reduce a moisture content below a fiber saturation point of the timber so as to eliminate free moisture from the fibers of the timber which would otherwise lead to unstable plasma and therefore detract an uniform improvement over substantially the entire surface expected at the subsequent exposure to the plasma mixture. Thus, the plasma treatment can be effected in the absence of the free moisture to obtain a desired surface improvement uniformly across the surface of the timber, which gives an enhanced practicability of improving the surface properties of the timber, in addition to that the plasma mixture is generated at near the atmospheric pressures readily available without requiring substantial vacuum generating equipments.

Abstract: An aluminum pipe according to the present invention is used in forming a plurality of bulged portions on the peripheral wall thereof. At the same time by bulging has been so refined as to exhibit an elongation of at least 40% and a recrystallization texture of up to 60 .mu.m in grain size during bulging. The aluminum pipe to be bulged is produced by a process characterized by drawing an extruded aluminum pipe at a cold working ratio of at least 40%, and thereafter annealing the drawn pipe at a temperature of 350.degree. to 420.degree. C., whereby the pipe is refined to exhibit the specified elongation and recrystallization texture.

Abstract: A curable resin having a number average molecular weight of 1,000 to 100,000 and having the formula (I): ##STR1## and a process for preparing the curable resin (I). The curable resin (I) of the invention is excellent in flexibility, solvent resistance, adhesion to organic materials as well as inorganic materials, storage stability, curability at ordinary temperature and weatherability.

Abstract: A sublimation type thermal transfer color video printer generates a heating pulse having a duration corresponding to the tone level of the pixel to be printed, according to the data in a reference tone table stored in a memory, to energize the corresponding heating element of a thermal heat during the duration. The tone table includes a variable data which is the basis of determining the duration of the first energizing pulse required up to right before the coloring of a recording paper, and a fixed data which are the bases of determining the durations of subsequent energizing pulses. A variable value multiplied by these fixed data is set in a separate register. The variable data in the tone table and the variable value in the register are rewritten according to change in temperature of the thermal head.

Abstract: A water vessel is assembled from a number of vessel units having at least one connecting opening, a short tube portion formed at each connecting opening of the vessel units, a connecting flange formed at an end of each short tube portion, and an annular packing interposed between contact surfaces of the connecting flanges of an adjacent pair of vessel units and received by annular recesses of the contact surfaces. A number of connecting members are arranged around each pair of connecting flanges of adjacent vessel units with the pair of flanges being inserted into grooves formed in the connecting members. The pair of flanges are pressed into contact by bolts for clamping the end portions of the connecting members together and utilizing wedge action between peripheral wedge portions of the pairs of flanges and groove wedge portions of the connecting members.

Abstract: The invention relates to a drag elastic-return and damping device (28) for a blade, and a rotor head including it.The device (28) comprises a connecting rod (30) connected to the blade and transmitting its drag movements to a rotary member (29) for elastic return with incorporated damping whose outer armature (32) it causes to rotate about a coaxial inner armature (31) in order to shear at least one thin collar (33) of a viscoelastic elastomer about its axis (B). The connecting rod (30) is coupled by way of rotational joints (43, 44) to a sleeve (15) for attaching the blade to the hub (1), and to a lever (34) of the outer armature (32). The member (29) is supported at the periphery of the hub (1), between two adjacent blades, or in the sleeve for attaching an adjacent blade such that the corresponding connecting rod is mounted as an inter-blade tie. On the rotor head, each blade is articulated with the hub (1) by a spherical laminated thrust block (5).

Abstract: The distribution of drive power produced by a drive power source is controlled in a four-wheel-drive motor vehicle having main drive wheels and auxiliary drive wheels. Drive powers produced by the drive power source are independently regulated and transmitted to the left and right auxiliary drive wheels. While the drive power distribution ratio between the main and auxiliary drive wheels is maintained at a suitable value, the drive powers are variable distributed between the left and right auxiliary drive wheels by a drive power distribution control system. The drive power distribution control system determines the drive power distribution ratio between the left and right auxiliary drive wheels depending on a detected lateral acceleration exerted to the motor vehicle, and transmits the drive powers to the left and right auxiliary drive wheels according to the determined drive power distribution ratio.

Abstract: The stator of a built-in motor must be firmly and accurately mounted on the spindle head housing or the like of a machine tool. A stator core (10), i.e., a principal component of the stator is welded partially at the circumference (14) thereof, and then the circumference of the stator core (10) held by a mandrel is finished to an accurate outside diameter by grinding. The stator core (10) thus constructed is subjected to a deformation with a lapse of time after the mandrel has been removed. To solve this problem, each lamination (12) of the stator core (10) is coated with a thermosetting adhesive, to be thereby joined together, and each lamination (12) is provided with a plurality of pressed projections (22) to be joined together by weld portions (20) on the circumference of the stator core (10), or each lamination (12) is joined together by pressing a serrated bar (26) into a bore (24) thereof, without a pressed projection (22).

Abstract: A hard contact lens material comprising a copolymer made of at least two kinds of fumaric acid diester at least one of which is a dialkyl fumarate as main components. The hard contact lens material has high oxygen permeability, transparance and excellent physical properties.

Abstract: An improved magnus measuring apparatus for providing an automatic initial setting at high speed in testing a plurality of biological specimens which moves elastically with beats, wherein a tensile force is applied on a specimen by moving the transducer connected thereto with use of a motor to be driven and stopped under the control of a control unit, and thereby the rotating speed of the motor is increased gradually at least for a predetermined period of time from the start and then kept at high speed for bringing a bottom value of the tensile force to enter an extent of preliminarily set initial value.

Abstract: A pump/motor control mechanism comprising a first actuator for actuating forward a forward/backward member when a fluid pressure is introduced into a first cylinder chamber located in the forward/backward member, a second actuator for actuating backward the forward/backward member when a fluid pressure is introduced into a second cylinder chamber located in the forward/backward member at a position oppositely facing the first actuator, a spool holding hole which is provided in the forward/backward member and has an axis center parallel to the forward/backward direction, a spool which is slidable fitted in the spool holding hole and has on its outer periphery a high-pressure groove connected to a high-pressure fluid source and a low-pressure groove opened to a low-pressure zone, input means for driving forward or backward the spool, a first pressure introducing path whose one end is connected to the first cylinder chamber and whose other end is opened to an area which is on the inner periphery of the spool hol

Abstract: Supplied selectively to a recording system circuit of a VTR are a first component signal comprising three primary color signals R, G and B and a second component signal comprising a luminance signal Y and two types of color difference signals P.sub.B and P.sub.R. The first and the second component signals pass through a group of LPFs (1, 2, 3) having the same pass characteristics and then are A/D converted at the same sampling clock. The component signal converted into a digital signal is applied to a matrix circuit 11. Respective coefficients of the matrix circuit are switched according to a type of the inputted component signal, and as a result, a second digital component signal is always outputted at a fixed delay time from the matrix circuit. Two color signal data which are over-sampled included in the second digital component signal are applied to decimation digital filters 14 and 15 to reduce data densities thereof.

Abstract: Provided is a rotor structure of a radial type synchronous motor having a rotor core (10) is held between permanent magnets (12) wherein end plates (14) are attached to ends of the rotor (8) in a direction of the central axis (6) of the rotor, each of which plates is provided with projecting portions (16) to regulate a radial position of an outer face of the rotor core. This prevents a projection of the rotor core and permanent magnets in the radial direction due to a centrifugal force caused by a rotation of the rotor. Therefore, a rotor structure able to withstand a strong centrifugal force can be provided.

Abstract: A liquid charging method including the following steps. First, supplying liquid into and then discharging the liquid from an enclosed space provided above a pit block, to fill the liquid into a plurality of pits on the upper surface of the pit block. Each of the pits open at the upper surface of the pit block and have a small-diameter nozzle formed at the bottom of the pit block. Second, a tray having an array of containers with open upper ends is fed to be positioned below the pit block at a specified liquid-charged position. Pressurized air is supplied into the enclosed space to apply pressure on the liquid in the pits, thereby forcing the liquid in the pits to flow through the small-diameter nozzles into the array of containers on the tray.

Abstract: A control system for an absorption refrigerator comprising an evaporator, absorber, generator and condenser for providing a refrigeration cycle. At least one fuzzy rule includes two antecedent input variables and two membership functions for the two input variables. When consequent membership functions of the rules are arranged in a matrix in corresponding relation to the two antecedent membership functions, the consequent membership functions are defined in every other row and every other column of the matrix in a region where at least the two input variables take a positive or negative great value.

Abstract: A filtering vessel adapted to accommodate a filter bag for filtering a liquid under pressure. The vessel comprises a top open cylindrical housing having a sidewall and a bottom with an outlet port, and a basket supported within the housing to retain the filter bag therein. A jacket is formed to surround a top portion of the housing to form therebetween an annular fluid passage which is open at its upper end and communicates with an inlet port formed at the jacket for coupling a pressurized liquid supply line. Also included in the vessel is a top cover detachably mounted on the housing and the jacket to close the top opening of the housing as well as that of the annular fluid passage. The top cover is formed in its lower surface with peripheral openings and a center opening which are intercommunicated within the top cover.

Abstract: An offset voltage at one pair of differential amplifier transistors for effecting the differential amplification of an input signal is suppressed. To achieve this aim, the base current of a pair of differential amplifier transistors is supplied from a current generator circuit separately provided. This current generator circuit has a very small current flow, and is composed of another pair of differential amplifier transistors to which a reference voltage identical with the bias voltage of the first differential amplifier transistors is applied, a transistor for reference current use for delivering a current at a current density identical with the current density of the first differential amplifier transistors, a base current supply transistor for supplying power to the reference current transistor, and two current supply transistors for delivering a current identical with the current of the simulation base-current supply transistor.