Abstract: An apparatus for simultaneously treating a plurality of cords for use in power transmission belts. The apparatus has a heating chamber, heated air in the chamber, and a guide system for simultaneously guiding a first cord in a first predetermined path and a second cord in a second predetermined path through the heating chamber. The guide system has at least a first roller with a first axis and first structure for causing the first cord and the second cord to move at least partially around the axis of the first roller progressively axially relative to the first roller as the first cord moves in the first predetermined path and the second cord moves in the second predetermined path through the heating chamber.

Abstract: A conductor paste comprising a high-polymer composite obtained by dispersing super-fine-granulated copper oxide in a polymer without being aggregated, mixed copper powders mainly composed of a base copper powder having a mean particle size of 1 to 10 .mu.m added with at least one kind of an auxiliary copper powder having a mean particle size smaller than that of the base copper powder, and an organic solvent, wherein the weight ratio of the mixed copper powders to copper oxide in the high-polymer composite is 5 to 50 to 1 of copper oxide and the total amount of copper oxide and the mixed copper powders is 50 to 90% by weight of the conductor paste, and a production method a conductor film by coating the conductor paste on the surface of a substrate and after pre-burning the conductor paste under temperature raising, burning the conductor paste to form the conductor film on the substrate.

Abstract: A power transmission belt having a body with a length, an inside, an outside, and at least one rib on the inside of the body. A canvas layer is provided on the outside of the body. The canvas layer is a plain weave canvas made up of cotton fiber and synthetic fiber which are present in a proportion such that there is at least as much synthetic fiber as there is cotton fiber in the canvas layer. The canvas layer has warp and weft yarns, each with center lines which cross to be biased with respect to the length of the body. The canvas layer is adhered to the body without performing a tentering treatment on the canvas layer.

Abstract: A thermoplastic elastomer composition for powder slush molding made up of a polypropylene resin, hydrogenated styrene/butadiene rubber, a process oil and an elastomer excellent in oil absorbing power. A process for making that thermoplastic elastomer composition may include the addition of an organic peroxide to the above components and kneading the obtained mixture while heating.

Abstract: An apparatus for treating a cord for use in a power transmission belt. The apparatus has a guide system for guiding a cord in a predetermined path and a processing liquid application system including a receptacle for a discrete amount of a processing liquid. A container defines a reservoir for a supply of processing liquid. There is a discharge opening on the first container for communicating processing liquid from a supply of processing liquid in the first container reservoir to the receptacle. With a first predetermined amount of processing liquid in the receptacle, the predetermined path extends through the processing liquid in the receptacle. With the discharge opening blocked, the first container reservoir is air tight. A first structure is provided for mounting the first container in an operative position on the apparatus wherein processing liquid in the first container reservoir flows by gravity to the discharge opening.

Abstract: A conveying belt has a core and a canvas layer attached to the core. The canvas layer has a first surface facing the core and a second surface facing oppositely to the first surface. The canvas layer has a thickness between the first and second surfaces. The canvas layer is treated with fluororesin so that the second surface is impregnated with fluororesin and only part of the thickness between the first and second surfaces is impregnated with fluororesin.

Abstract: A cutting apparatus for sheet material, such as a power transmission belt molding pad, which cutting apparatus has a first structure for supporting a sheet material, a second structure for engaging and advancing the sheet material on the first structure to a predetermined cutting position, and structure for guidingly cutting the sheet material in the cutting position.

Abstract: A component for a power transmission belt. The component is a fiber cord that is treated in a first step with at least one of a) an isocyanate compound and b) an epoxy compound such that after the first step the at least one of the isocyanate compound and epoxy compound is present in solid form in an amount equal to 0.5 to 2.0 weight %. The fiber cord is treated after the first step in a second step with an RFL liquid so that the percentage void in the cord, as determined by the following formula, is not greater than 1.5%:percentage void=100.times.A.sub.y /A.sub.x, where A.sub.x is the total surface area of the cord and A.sub.y is the void area.

Abstract: An oven for continuously heating a cord, which oven has a housing defining an internal space for treatment of a cord. The housing has an inlet and an outlet communicating with the internal housing space and between which a cord being heated passes in a predetermined path. A heating chamber is defined within the internal housing space through which a cord being heated travels between the housing inlet and outlet. A first partition within the internal housing space is located beneath at least a part of the predetermined path and defines an upper wall of a hot air supply chamber within the internal housing space. The first partition has an elongate slit therethrough that resides beneath, and extends parallel to, the part of the predetermined path through which slit air in the hot air supply chamber is communicated to the heating chamber. An inlet opening in the housing communicates heated air to the hot air supply chamber.

Abstract: A power transmission belt has a body with a) a cushion rubber layer and b) a compression rubber layer disposed on the cushion rubber layer. The cushion rubber layer has load carrying cords embedded therein and a first rubber composition including a hydrogenated nitrile rubber, an unsaturated carboxylic acid metal salt, silica, and inorganic peroxide. The compression rubber layer has a second rubber composition including a hydrogenated nitrile rubber, an unsaturated carboxylic acid metal salt, and an organic peroxide.

Abstract: A belt for conveying articles, which belt has a body having a surface against which articles are placed to be frictionally held and thereby conveyed as the belt is advanced in operation. The belt body surface is defined by rubber and a porous filler in the rubber. The porous filler is present in the rubber in an amount of at least 5 parts by weight of porous filler per 100 parts by weight of rubber.

Abstract: A conductor paste comprising a high-polymer composite obtained by dispersing super-fine-granulated copper oxide in a polymer without being aggregated, mixed copper powders mainly composed of a base copper powder having a mean particle size of 1 to 10 .mu.m added with at least one kind of an auxiliary copper powder having a mean particle size smaller than that of the base copper powder, and an organic solvent, wherein the wight ratio of the mixed copper powders to copper oxide in the high-polymer composite is 5 to 50 to 1 of copper oxide and the total amount of copper oxide and the mixed copper powders is 50 to 90% by weight of the conductor paste, and a production method a conductor film by coating the conductor paste on the surface of a substrate and after pre-burning the conductor paste under temperature raising, burning the conductor paste to form the conductor film on the substrate.

Abstract: A power transmission belt having a body with a length, inside, and outside, and laterally spaced side surfaces. The body has a compression section, with there being a plurality of fibers embedded in the compression section having a diameter of 0.7 to 0.9 denier.

Abstract: An improvement in a power transmission belt of the type having a body with a length, laterally spaced sides, an inside, an outside, teeth spaced in a lengthwise direction on the inside of the body, grooves between adjacent teeth, and a longitudinally extending load carrying cord. The power transmission belt further has a power transmission area on the body defined between the load carrying cord and a line spaced inside of the load carrying cord a distance approximately 2/3 H, where H is the distance between the load carrying cord and the inside of the body. The invention is also directed to a method of forming the above belt.

Abstract: An apparatus and method for forming at least one of a rib and groove on a surface of a power transmission belt/belt sleeve. The apparatus has first and second supports on which the belt/belt sleeve can be mounted for movement in an endless path. First structure is provided on at least one of the first and second supports for reinforcing a belt/belt sleeve, mounted on the first and second supports, against movement and deformation of the belt/belt sleeve relative to the at least one of the first and second supports transversely to the endless path as the belt/belt sleeve moves in the endless path.

Abstract: A method of forming a composite material including the steps of: providing a surface against which the composite material can be molded; providing a plurality of discrete filler particles; placing a plurality of discrete filler particles against the surface; preventing the particles from shifting freely along the surface; directing a liquified matrix material against the particles on the surface; and solidifying the matrix material to unite the discrete particles and matrix material into a composite structure.

Abstract: A colorant of ultrafine particles for providing transparent color includes ultrafine metal particles, a fixing agent and a glass forming material. The ultrafine metal particles can be gas condensed ultrafine metal particles or polymer compound ultrafine metal particles. The colorant produces a transparent colored film on a substrate.

Abstract: A marking material having a substrate layer defined by a first rubber compound. A mark is applied to the substrate layer, which mark is defined by a second rubber compound that visibly contrasts with the first rubber compound.

Abstract: An endless belt having an inside surface, an outside surface, a length and a width. The belt has a canvas core layer, an elastomer layer outside of the canvas core layer, a surface canvas layer that is expansible lengthwise of the belt outside of the elastomer layer, and structure applied on the surface canvas layer and exposed on the outside surface of the endless belt to resist bonding of foreign material thereto.

Abstract: A conveying belt having a belt body with oppositely facing inner and outer surfaces and a width between laterally spaced sides. The belt body has a first layer, with the first layer being an elastomer with a first plurality of discrete fibers therein having lengths substantially less than the width of the body. The lengths of the fibers in a second plurality of fibers in the first plurality of fibers are randomly oriented and reside substantially in a single plane. The invention is also directed to a method of making the conveying belt.