Abstract: The invention provides a molded synthetic resin belt connecting device of the type including a belt attachment member and a fastening member rotatably connected together, wherein a headed pin formed integrally with a rotatable shaft of the belt attachment member and a socket formed integrally with the fastening member are assembled together to form a swivel joint such that a head portion of the headed pin is loosely received in a through-hole in the socket, and a neck portion of the headed pin which is smaller in diameter than the head portion is loosely received in a cutout groove at a junction between the cutout groove and the through-hole. The belt attachment member and the fastening member are molded of synthetic resin in an assembled condition by a single injection-molding run or cycle. The belt connecting device thus constructed is free from break at a joint portion between the belt attachment member and the fastening member and hence is highly durable in construction and labor-saving in assembly.

Abstract: A releasable catch for holding together they body of a bag and a flap of the bag includes a plug member attached to the flap and having a resiliently deformable locking tongue, and a socket member attached at its one end to the bag body and having a gate-shaped locked portion disposed adjacent the one end of the socket member for slidably receiving and thereafter locking the resiliently deformable locking tongue to couple the plug member and the socket member. The locking tongue is tilted toward a backward side of the plug member at a predetermined angle relative to a plane of an attachment portion. When the locking tongue of the plug member is locked into the socket member, the bent plug member tends to turn the socket member about the fixed one end toward the bag body, so that the other or loose end of the socket member is always held in contact with a front surface of the bag body regardless of the content of the bag.

Abstract: A buckle having a male coupling member for attaching to one article and a female coupling member for attaching to another article. The male coupling member includes an article-attaching frame having a pair of side bars, an article-attaching bar joined at their opposed ends to the respective upper ends of the side bars and a proximal bar joined at its opposed ends to the respective lower ends so as to rotate on its own axis, and a locking member including a joint portion integrally mounted on the upper end of the locking member and mounted on the proximal bar so as to rotate on the axis of the locking member which is substantially normal to the axis of the proximal bar. The female coupling member includes a housing body and an article-attaching portion provided on the housing body and attachable to the other article; and means for locking the locking bar into the housing body so as to rotate on the housing body around the axis which is perpendicular to the plane of the buckle.

Abstract: A silicone-based fabric finishing agent which comprises: an aminoalkyl-substituted diorganopolysiloxane; a reaction product of an aminoalkyl-substituted organopolysiloxane and an epoxy-containing organic compound; a hydrolysis product of an epoxy-containing hydrolyzable organosilane coupound; and, optionally, an aminoalkyl-substituted organopolysiloxane having a specified viscosity, each in a specified proportion is particularly suitable for the softening treatment of waddings of synthetic fibers, e.g., polyester fibers, and advantageous over conventional silicone-based fabric treatment agents with respect to the excellent softness and smoothness of the treated wadding, which is freed from the problem of discoloration or yellowing caused in the course of the heat treatment and by the lapse of time, as well as the durability of these effects to withstand dry cleaning.

Abstract: An apparatus for plasma treatment, capable of plasma-treating works of resin material by irradiating the surfaces of the works with a microwave discharge plasma within a vacuum reaction chamber. A plasma introducing port is formed in the wall of the reaction chamber. A plasma-irradiating pipe is connected to the plasma introducing port for injecting the plasma into the reaction chamber to irradiate the surfaces of the works. A discharge port is formed in the wall of the reaction chamber to reduce the internal pressure of the reaction chamber. A plasma diffuser includes a rotatable vane for diffusing the flow of plasma to distribute uniform density of plasma in the reaction chamber. A plurality of deflecting plates projecting from the inner wall of the reaction chamber toward the interior thereof may also be provided to diffuse the flow of plasma in the reaction chamber.

Abstract: An apparatus for plasma treatment, capable of plasma-treating works of resin material by irradiating the surfaces of the works with a microwave discharge plasma within a vacuum reaction chamber. A plasma introducing port is formed in the wall of the reaction chamber. A plasma-irradiating pipe is connected to the plasma introducing port for injecting the plasma into the reaction chamber to irradiate the surfaces of the works. A discharge port is formed in the wall of the reaction chamber to reduce the internal pressure of the reaction chamber. A plasma diffuser includes a rotatable vane for diffusing the flow of plasma to distribute uniform density of plasma in the reaction chamber. A plurality of deflecting plates projecting from the inner wall of the reaction chamber toward the interior thereof may also be provided to diffuse the flow of plasma in the reaction chamber.

Abstract: A method for the electrodeposition coating of workpieces conveyed in an electrodeposition bath, wherein voltage applying means is provided in a plurality of stages of not less than three in the conveying direction of the workpieces. Voltage is increased at the first stage, and the multiple stages voltage applying means is initiated after the workpieces reach a submersion area where the workpieces are completely submerged in the paint contained in the electrodeposition bath. Voltage application at the final stage of the voltage applying means is terminated before the workpieces exit from the submersion area. By this method, the thickness of the electrodeposition film can be made uniform so that there is no difference in film thickness between lower and higher workpieces or in the lower and upper parts of a workpiece.

Abstract: A method for the electrodeposition coating of workpieces conveyed in an electrodeposition bath, wherein voltage application means is provided in a plurality of stages in the conveying direction of the workpieces. In the method, the type of workpiece being conveyed is detected, and the length of time to apply voltage to the workpiece in the bath according to the type of workpiece by changing the number of stages to be electrically coupled among the plurality of stages of the voltage application means. By this method, it becomes possible to provide each workpiece with most suitable electrodeposition film thickness even in a line where workpieces having different required film thicknesses are present.

Abstract: A method for applying surface plasma-treating to works of resin material in a reaction chamber by irradiating the surfaces of the works with a microwave discharge plasma within the reaction chamber, comprising injection the plasma from a plurality of positions located adjacently to the inner wall of the reaction chamber, and injecting the plasma from each injecting position in a certain spreading angle along the direction of injection.

Abstract: A method for applying surface plasma-treating to works of resin material in a reaction chamber by irradiating the surfaces of the works with a microwave discharge plasma within the reaction chamber, comprising injection the plasma from a plurality of positions located adjacently to the inner wall of the reaction chamber, and injecting the plasma from each injecting position in a certain spreading angle along the direction of injection.

Abstract: An apparatus for plasma treatment, capable of plasma-treating works of resin material by irradiating the surfaces of the works with a microwave discharge plasma within a vacuum reaction chamber, comprises a plurality of long plasma-irradiating tubular pipes, each of which is provided along the length thereof with numerous small holes for injecting plasma, and at least one plasma-irradiating straight pipe disposed with its free end opening toward a section to which the plasma is hard to flow. At least one second plasma-irradiating pipe is located movably to an optional position within the reaction chamber.

Abstract: An apparatus for coating by electrodeposition a workpiece immersed in a reservoir containing coating material to be electro-deposited wherein the workpiece is set for a first electrode, and a second electrode is disposed along side wall and the bottom of the reservoir for effecting electrodeposition coating on the workpiece by applying DC voltage across the first and second electrodes. The second electrode is consisted of a plurality of conductive rods supported by supporting members at a predetermined height from the bottom of the reservoir. The conductive rods are disposed at a predetermined interval.

Abstract: An electrode of a metal oxide sintered mass, comprising: an electrode body having therein a metal member as a core the outer circumference of which is covered with an electroconductive material and a metal oxide sintered mass; and a sheathed lead wire joined to said electrode body, the joint therebetween being covered with a resin.

Abstract: An apparatus for plasma treatment, capable of plasma-treating works of resin material by irradiating the surfaces of the works with a microwave discharge plasma within a vacuum reaction chamber. A plasma introducing port is formed in the wall of the reaction chamber. A plasma-irradiating pipe is connected to the plasma introducing port for injecting the plasma into the reaction chamber to irradiate the surfaces of the works. A discharge port is formed in the wall of the reaction chamber to reduce the internal pressure of the reaction chamber. A plasma diffuser includes a rotatable vane for diffusing the flow of plasma to distribute uniform density of plasma in the reaction chamber. A plurality of deflecting plates projecting from the inner wall of the reaction chamber toward the interior thereof may also be provided to diffuse the flow of plasma in the reaction chamber.

Abstract: A method for sequentially controlling the operation of a microwave-excited oxygen plasma surface treatment apparatus in order to improve and control the quality of surface treatment. The pressure within a reactor (10) is continuously monitored and measured and a first pressure signal is issued when the pressure is reduced to a predetermined first level, whereupon flow control valves (52, 54) are opened to allow oxygen gas to flow through microwave discharge tubes (34) into the reactor (10). A second pressure signal is issued when the pressure increases to a second pressure range and microwave power generators (20, 22) are energized to excite the oxygen flowing therethrough. The plasma density is continuously monitored and measured, preferably in terms of the luminous intensity of the plasma, the amount of reflected microwave power, or a combination thereof. The plasma surface treatment is terminated after a timed duration.

Abstract: An electrode for cation electrodeposition coating which comprises a sintered mass of metal oxide having electroconductivity, such as ferrite or magnetite, and a method for coating by electrodeposition by use of the electrode described above are disclosed.

Abstract: An electrode of a metal oxide sintered mass, comprising; a cylindrical hollow body with one end thereof closed; said body being made of the sintered metal oxide; and a core material of a metal member, said core material being inserted into and secured to, by means of bonding agent of a conductive material, said cylindrical body.

Abstract: A method of electrodeposition coating and an apparatus therefor in which, while a work to be coated such as vehicle body is present in a conduction stage of low voltage and current flows to the work from the anode plate of said conduction stage of low voltage, current flows to the work also from the anode plate of a conduction stage of higher voltage to increase the thickness of a coating film and to attain thorough electrodeposition to the work.

Abstract: An electrode of a metal oxide sintered mass, comprising: an electrode body having therein a metal member as a core the outer circumference of which is covered with an electroconductive material and a metal oxide sintered mass; and a sheathed lead wire joined to said electrode body, the joint therebetween being covered with a resin.

Abstract: A system for phosphating objects, such as automobile bodies, having bottom portions of complicated configuration, the system including a tank for holding a phosphating liquid, a mechanism for generating recirculation of the fluid in the tank, a conveyor mechanism for continuously conveying the objects from an inlet side to an outlet side in such a manner that the objects are fully dipped into the fluid, the tank having a sloped bottom in the inlet side and the conveyor mechanism having the same inclination of that of the sloped bottom of the tank, a gush-type spraying nozzle mechanism arranged on the sloped bottom portion of the tank and connected to the recirculation mechanism for generating a flow of fluid from the sloped bottom of the tank towards the bottom portions of each object conveyed, the direction of the flow being inclined rearwardly with respect to a vertical line in the direction of movement of the objects by the conveyor mechanism at an inlet side portion thereof and also inclined upwardly with