Abstract: A molded pinion includes separate gear portions with gear teeth, and gearless shaft portions provided between the adjacent gear portions. The shaft portions have an outer diameter smaller than the dedendum of the gear teeth of the gear portions. Each shaft portion has an axial length longer than an axial length of each gear portion. Disclosures are also directed to a molding die assembly including first split dies which are movable in radial directions to form the gear portions of the pinion, and second split dies which are movable in radial directions independently of the first split dies to form the shaft portions, and a molding method using the molding die assembly.

Abstract: This invention provides a coating composition which utilizes a free radical initiator and an organic tintability additive which remains substantially unpolymerized even after the remainder of the coating composition is cured. Superior tintability and adhesion to polycarbonate makes this coating particularly suitable for making tinted opthalmic lenses.

Abstract: Ignition operation is carried out by charging a capacitor (C1) of an ignition circuit (3) by means of an output of a positive half cycle of an exciter coil (104) and discharging charges in the capacitor (C1) through a thyristor (Th1). A transistor (Tr4) is turned on when a level of a detected value (Vb) of an output voltage of a negative half cycle of the exciter coil coincides with a level of a reference voltage (Vr), resulting in a reference signal being generated. Measuring of an ignition timing operated by a microcomputer (4) is started at a generation position of the reference signal, so that the ignition timing is measured, the thyristor (Th1) is fed with an ignition signal, leading to ignition operation. A generation position of the reference signal is rendered constant by varying a reference voltage (Vr) depending on an output voltage of the exciter coil and an output frequency thereof.

Abstract: In a camera lens group having both glass and plastic lenses mounted in a lens frame, where at least one of the lenses is movable along the optical axis, a spacing member and a resiliently deformable member are each arranged in an interval between lenses in the lens group. The resiliently deformable member biases one of the lenses away from the spacing member, and the spacing member reduces the range of possible movement of the movable lens.

Abstract: A zoom lens assembly has a rotatable cam ring having first helicoid threads and a cam groove, a front lens group held by a front lens group frame having second helicoid threads held in mesh with the first helicoid threads for moving the front lens group along an axis of the rotatable cam ring, and a rear lens group held by a rear lens group frame having a cam follower engaging in the cam groove for moving the rear lens group along the axis relatively to the front lens group. A pair of diametrically opposite tension springs in the form of coil springs is coupled between the front and rear lens group frames for normally urging them toward each other thereby to remove backlash between the first and second helicoid threads and between the cam follower and the cam groove.

Abstract: A process for reclaiming waste plastics having a paint film which includes subjecting the paint film to a hydrolysis treatment by immersing the waste plastics having a urethane paint film or an amino resin paint film in a treating liquid, or contacting the waste plastics with the vapor of a treating liquid, to decompose the paint into lower molecular weight compounds. The resulting waste plastics are then heated and kneaded to disperse the products of the hydrolysis in the waste plastics, and there is recovered a reclaimed waste plastics product having good mechanical properties.

Abstract: A material with variable viscoelasticity is composed of an electrically insulating polymeric material, and fine particles dispersed therein and capable of electric polarization under an applied electric field. The particles may, for example, be of a conjugated and unsaturated organic compound, a polyelectrolyte, or an organometallic complex salt. The material is capable of a reversible change of viscoelasticity depending on the intensity of the applied electric field.

Abstract: A fuel absorbent is provided in which polymer particles having a fuel absorbing ability are contained or dispersed in a binder matrix permeable to fuel. The fuel permeates the binder and is absorbed by the polymer particles. A process is provided for making the fuel absorbent by mixing polymer particles having fuel absorbing ability with a binder dissolved in a solvent, to thereby obtain a dispersion mixture having the polymer particles dispersed therein. The dispersion mixture is then dried to cause the polymer particles to be dispersed in a matrix of the binder. The fuel absorbent has excellent durability and fuel absorbing/desorbing ability.

Abstract: A rotary feed mechanism including gears provided on an outer peripheral surface of an inner ring, male threads on an outer peripheral surface of an inner ring, and an outer ring having female threads which .engage with the male threads of the inner ring. At least one male thread formed between the gears of the inner ring is engaged with a female thread provided on the outer ring, and at least one pinion engages with at least one of the gears, regardless of the axial position of the inner ring with respect to the outer ring. When the at least one pinion is rotated, the rotation is transmitted to the inner ring, and the inner ring is moved in an optical axis direction, with respect to the outer ring, in accordance with the engagement between the male and female threads.

Abstract: An electrically driven zoom lens camera includes a zoom lens barrel having a cam ring, a motor which rotates the cam ring through a gear train including a terminal gear connected to the cam ring, and a pair of component accommodating spaces which are defined by and between a cylindrical portion of the zoom lens barrel and upper and lower wall surfaces of a camera body, so that the motor and the terminal gear of the gear train are located in respective component accommodating spaces.

Abstract: An adjusting apparatus of a zoom lens barrel is provided including a zoom mechanism in which the zooming is carried out by a rotation of a rotatable cam ring, a code plate provided on a linearly movable member which is linearly moved in an optical axis direction by the zoom mechanism, and a brush holder having brushes which come into contact with the code plate to detect a focal length thereof. The adjusting apparatus further includes a brush position adjusting mechanism which adjusts the position of the brush holder in the optical axis direction, and a device for confirming that the cam ring, whose reference angular position is varied in accordance with the adjustment of the brush holder by the brush position adjusting mechanism, is located at a predetermined angular position.

Abstract: The invention relates to a process for producing a fuel absorbent, which comprises the steps of: dissolving an organic polymer having a function of trapping fuel in a solvent to produce a polymer solution; adding a crosslinking agent to said polymer solution to allow said organic polymer to react in the presence of said crosslinking agent; and collecting, after the completion of the crosslinking reaction, the resultant fine polymer gel particles.The invention also relates to a porous fuel absorbent produced by the above process comprised of fine cross-linked organic polymer formed into particles. The above fuel absorbent along with coatings and a carrier may be used to control fuel evaporation loss in automobile canisters or boiler fuel tanks.

Abstract: A zoom lens barrel includes a code plate and brushes which selectively come into contact with the code plate to detect focal length variance during zooming, so that focal length data thus detected can be transmitted to a camera body through a flexible printed circuit (FPC) board, one of the code plate land brushes being secured to a mounting member and the other of the brushes or code plate being secured to a linearly movable member. The brushes are provided with elastically deformable lengths which can be connected to the FPC board, and a connecting portion thereof connected to the code plate. The mounting member or linearly movable member to which the brush assembly is secured is provided with an FPC board inserting groove with which the elastically deformable legs of the brushes can come into contact. The FPC board is provided with an insertion portion which is inserted between the FPC board inserting groove and the elastically deformable legs.

Abstract: A coil component having a magnetic core together with a coil is precisely and correctly positioned on a printed circuit board by using an automatic mounting machine, which has a vacuum nozzle (6) for lifting the coil component, and a pair of adjusting chips (7,7) for finely adjusting the location of the coil component by pushing a wall of the coil component. The coil component comprises a dielectric support (insulator) (1), a plurality of terminal pins (2) molded in said support, each having a first end (2a) along a first side of the support for coupling with an end of a coil wound around a magnetic core, and a second end (2b) along a second side which is perpendicular to said first side for coupling with an external circuit on a printed circuit board.

Abstract: An evaporation loss control device provided with a polymer chamber filled with polymer absorbent, a charcoal chamber filled with charcoal, introduction and purging pipes for connecting the polymer chamber with a fuel tank and an engine intake passage, respectively, an air pipe for ventilation connected to the charcoal chamber, and a vapor passage, which has various forms. For example, the vapor passage may be formed in spiral to encircle the polymer chamber, or provided between the polymer and charcoal chambers, thus allowing the evaporated fuel to pass therethrough. The vapor passage is constructed to prevent the evaporated fuel trapped by the polymer absorbent from flowing into the charcoal chamber, and also to prevent the liquid fuel from being absorbed by the charcoal.

Abstract: This invention relates to a reverse osmosis treatment process, particularly a stable reverse osmosis treatment process which prevents a lowering in throughput capacity by carrying out treatment while keeping the permeate flux of a reverse osmosis membrane constant through the time of use of a module. The process of this invention can keep the throughput capacity constant, can prevent adhesion and pollution onto membrane surfaces and fouling thereon, and moreover can maintain stable operation in a continuous run.

Abstract: A method of continuously distilling off the components of a mixture containing phenols, water and methanol using a single distillation column, wherein methanol is recovered from the top of the column, water containing phenols is dragged as a side stream from a recovery section of the column, and phenols are recovered as a bottom product. The method permits efficient separation by the single distillation column of the three components with high purity and low utility energy.

Abstract: The invention relates to a process for producing a fuel absorbent, which comprises the steps of: dissolving an organic polymer having a function of trapping fuel in a solvent to produce a polymer solution; adding a crosslinking agent to said polymer solution to allow said organic polymer to react in the presence of said crosslinking agent; and collecting, after the completion of the crosslinking reaction, the resultant fine polymer gel particles. The invention also relates to a porous fuel absorbent produced by the above process comprised of fine cross-linked organic polymer formed into particles. The above fuel absorbent along with the coatings and a carrier may be used to control fuel evaporation loss in automobile canisters or boiler fuel tanks.

Abstract: A fiber reinforced plastics comprises a resin and chopped strands dispersed in the resin, wherein the chopped strands comprise glass fiber chopped strands composed of cut assemblies of glass filaments and high elastic chopped strands composed of cut assemblies of high modulus inorgtanic filaments having higher elastic modulus than the filaments and having 3000 or less number of assembled filaments. By this arrangement, the both chopped strands are closely and uniformly dispersed in the resin and the force interaction between the both chopped stands are enhanced. The resultant plastics has remarkably improved strength and fatigue durability, and higher rigidity than conventional ones.

Abstract: An exhaust gas processing apparatus for a paint drying oven of this invention comprises a reaction container; a first catalyst layer disposed at an upstream side of the reaction container comprising a support of a honeycomb substance or a foamed substance, a carrier layer formed on the support and a platinum group element catalyst loaded on the carrier layer; a second catalyst layer disposed downstream of the first catalyst layer comprising a support of a pellet substance, a honeycomb substance or a foamed substance and a platinum group element catalyst; and a third catalyst layer disposed downstream of the second catalyst layer comprising a support, a carrier layer formed on the support and a copper-cerium-silver catalyst loaded on the carrier layer. Thus, the exhaust gas processing apparatus of this invention exhibits improved exhaust gases purifying abilities, even at relatively low temperatures, and less pressure drop.