Abstract: A spliced narrow non-directional endless belt for packaging applications, for use with plastic film wrapping packaging equipment. The ends of a coated fabric belt material are butted together and a fluoropolymer film is applied to the butted ends on the outer surface of the belt. A splice material (also a coated fabric) is centered over such fluoropolymer film. Another fluoropolymer film is positioned over the splice material so as to encapsulate it and another fluoropolymer film extends on the inside surface of the belt over the butted ends of the belt. The ends of this latter film extend over the edges of the belt onto the exterior surface of the film that is positioned over the splice on the front surface of the belt. Coatings of fluoropolymer dispersions are preferably applied over the various layers, and the entire construction is laminated together into a unitary construction.

Abstract: A process is disclosed for the manufacture of endless looped transfer belts having extremely low loss of registration over the length of the belt. The process comprises steps for creating the apertures in the belt with little center to center deviation, creating a splice joint for forming the endless loop, and joining the ends of the belt, utilizing apparatus specifically designed to provide indexing posts, registration posts and dimensioning plugs to insure accuracy in the finished belt.

Abstract: An endless power transmission belt has an elastomeric body portion, load carrying members embedded in the body portion, and a power transmitting surface integral with the body portion. The elastomeric body portion further includes material to mitigate unstable frictional behavior of the body portion responsible for initiating self-excited vibration at the power-transmitting surface.

Abstract: A rubber article having a fiber reinforcement embedded therein. The reinforcement comprises a cylindrically braided cord of an even number of twisted yarns of four or more, an equal number having an twist, i.e. twisted to the right, and a Z-twist, i.e. twisted to the left. The angle difference between a first twisting angle of a yarn and a final twisting angle of the cylindrically braided cord is set at less than 10.degree..

Abstract: A power transmission belt having improved service life in high and low temperature environments is disclosed. The power transmission belt includes a compressed rubber layer of a low density chlorosulfonated polyethylene having a straight-chain molecular structure which is formed so that the chlorine content is within the range of about 15 to about 35% by weight. The chlorosulfonated polyethylene can have a sulfur content in the range of about 0.5 to about 2.5% by weight. A magnesium oxide-aluminum oxide solid solution can be admixed with the chlorosulfonated polyethylene. The power transmission belt can also include an adhesion rubber layer made of a chloroprene rubber composition or a hydrogenated acrylonitrile-butadiene rubber composition with at least one tension member at least partially embedded therein.

Abstract: A power transmission V-belt having a plurality of longitudinally extending load-carrying/tensile cords embedded in an adhesive rubber layer, a compression section having a plurality of laterally extending cords embedded in a second rubber layer, and a reinforcing rubber layer interposed between the adhesive rubber layer and the laterally extending cords.

Abstract: A power transmission belt having a tension section and a compression section, with at least a portion of one of the tension and compression sections being formed from rubber of a first color. A rubber coated canvas covers at least a part of at least one of the tension and compression sections including the portion of the one of the tension and compression sections having the first color. The rubber in the rubber coated canvas has a second color that is different than the first color. A rubber layer having a third color is interposed between the portion of the one of the tension and compression sections and the rubber coated canvas. The third color is substantially the same as the second color.

Abstract: A power transmission belt with a belt body having a compression section, a load-carrying section, inside and outside surfaces, and laterally spaced pulley-engaging side surfaces. A fabric cover layer is provided on one of the inside, outside and laterally spaced pulley-engaging side surfaces. The fabric cover layer has an uninterrupted, substantially uniform thickness over the entire extent of the fabric layer on the one of the inside, outside and laterally spaced pulley-engaging side surfaces to which it attaches.

Abstract: A method and an apparatus for making an endless, flat, flexible belt of pourable plastics include a core, especially a multiple core, as tension bearer, for example in a conveyor belt of polyurethane. Spaced apart support filaments extending transversely of the longitudinal direction of the belt are tightened in a mold approximately in the center plane of the belt to be cast so that the tension bearer will be placed as accurately as possible in the middle, based on the thickness of the belt to be produced. Subsequently the tension bearer is wound in longitudinal direction of the belt on the winding support formed by the support filaments. Thereupon liquid plastic material is poured into the mold and following that the support filaments protruding from the side surfaces of the belt are cut off upon termination of the curing.

Abstract: An elastomeric drive belt having cable reinforcement wherein lateral forces generated by the various layers of cables while the drive belt is in use are neutralized to prevent tracking problems.

Abstract: A toothed belt of the present invention comprises a back surface section and tooth sections that are made of an acrylonitrile-butadiene copolymer (NBR) with a hydrogenation rate of 90% or more; a tooth cloth that covers the surface of the tooth sections and tooth lands, the tooth cloth being made of an industrial nylon raw fiber with a viscosity relative to sulfuric acid of 2.45 to 2.53, a tensile strength of 5 g/denier or more, and a fineness of single fibers of 5 denier or less and being treated with resorcinol-formaldehyde-latex (RFL) liquid in which resorcinol-formaldehyde resin is mixed with a hydrogenated NBR as a latex component; and core fibers with a core diameter of 0.63 to 0.85 mm, the core fibers being made of twisted bundles of glass fibers of high strength.

Abstract: A thin, continuous, flexible drive belt for a belt-driven data cartridge. The belt has a rectangular rib which extends longitudinally along the center of the face of the belt that contacts a tape pack contained within the cartridge. The ribbed belt allows the tape pack to operate at greater transport speeds and acceleration rates by creating a pair of air channels extending the full length of the contact area between the belt and tape pack, resulting in effective removal of air at the belt/tape pack interface.

Abstract: A fiber reinforced composite belt in which a stainless steel fiber aggregate having a diameter of from 5 to 50 .mu.m and impregnated with 1 to 10% by weight of a thermosetting resin such as an epoxy resin is buried as a reinforcing material in a base material for belt, and a process for preparing the above-mentioned fiber reinforced composite belt are provided. This fiber reinforced composite belt is much more excellent in flex resistance, durability, water resistance and coefficient of linear expansion, as compared with not only a rubber belt and a synthetic resin elastomer belt but also belts reinforced by directly burying a stainless steel fiber and a steel fiber in the rubber.

Abstract: The disclosure is of conveyor belting and a method for its manufacture. The belting comprises a plurality of substantially parallel, uncrimped textile yarns of a specific character, embedded in a matrix of a specific class of ionomer elastomeric resin. The belting of the invention is useful to manufacture conveyor belts which exhibit advantageous properties of wear resistance, flexibility, stability in running, structural integrity and resistance to food, oils, fats, and like staining.

Abstract: An endless metal belt assembly is made with opposing adjacent belt surfaces that may contain a roughened surface containing protuberances, indentations and/or pits and are configured such that a lubricant can be held and circulated between the adjacent surfaces. The roughened surface may be formed by an electroforming process in which one or more components of the electroforming bath and the operating parameters of the electroforming bath are adjusted to create the protuberances, indentations and/or pits. A belt assembly formed in this manner is useful as a driving member for a continuously variable transmission.

Abstract: Ductility of belt material is increased at least at one edge of an endless metal belt, thus reducing the likelihood of premature failure of the belt. The inner region of the belt maintains the inherent strength of the metal. The endless metal belt so formed is particularly useful as a driving member for a continuously-variable transmission.

Abstract: A power tansmission belt having a body portion comprising at least one strip of belt body material helically wound at an incline with respect to the surfaces of the finished belt. The belt material is wound against itself to form generally inclined and successive plies of body material. Tensile material or load carrying cord is helically wound between the successive plies of the body material. The method and apparatus for simultaneously winding the belt body material and the load carrying cord is disclosed.

Abstract: A transmission belt having a base section with a plurality of teeth spaced lengthwise of the belt and a canvas layer covering the teeth. The canvas layer has weft yarns extending in a lengthwise direction defined by aromatic polyamide fiber spun yarn twisted with a urethane elastic yarn. The canvas layer further includes warp yarns made by twisting a plurality of filaments, at least one of which is aliphatic mono-filament of 10 to 50 denier, or a plurality of aromatic polyamide multi-filament of 1 to 6 denier.

Abstract: An improved cord for use in a power transmission belt. Before an adhesive stretching thermal fixation treatment, the cord, upon being heated, has a ratio of shrinkage percentage to shrinkage stress of less than 12% per g/d. After an adhesive stretching thermal fixation treatment, the heated cord has a ratio of shrinkage percentage to shrinkage stress of less than 6% per g/d.

Abstract: A high and low temperature resistant endless belt is disclosed. The belt includes a main belt body portion prepared from elastomeric material and a tensile member disposed in the body portion. A sheave contact portion is formed integral with the main body portion. The elastomeric material has high and low temperature resistant properties. The elastomeric material is formed from the reaction product of an amine or hydroxy terminated polyol, an hydroxl or amine terminated chain extender, and a polyisocyanate-containing composition adapted for rapid reaction with the extender when admixed therewith in a mold to retain flexibility and resiliency over heat age of the belt.

Abstract: A transmission belt including a part formed by a vulcanized product of a rubber composition comprising 100 parts by weight of chloroprene rubber, 1 to 30 parts by weight of zinc powder and 0.5 to 10 parts by weight of 4,4'-(.alpha.,.alpha.-dimethylbenzyl)diphenylamine, and having a high level of dynamic heat resistance and a long life.

Abstract: A picking mechanism comprises a flexible picking belt for securing to a belt wheel and made of plastics reinforced by a number of stranded and/or bunched groups of fibers. The fiber groups are disposed in an insert extending over the entire length of the picking belt and surrounded by a layer of plastics constituting the picking belt and free from the fiber in the fiber groups. The picking belt has an end portion remaining outside the winding area of the belt wheel and formed with a web-like raised part. The easily-manufactured, low-weight picking belt prevents exposure of fiber in the fiber group during a long period of operation.

Abstract: In raw-edge power transmission belts the tensile cords is covered with a thinly compressed layer composed of nonwoven fabric and elastomer matrix permeated therethrough at the tooth bottoms, and the nonwoven fabric is diffusedly mixed for reinforcing an elastomer matrix in the tooth parts.In the method of manufacture, the outer cylindrical circumference of the internal die along which toothed faces are formed are covered with nonwoven fabric under non pressure, and the tensile cords are wound spirally. Hereafter, dies are set up and elastomer material is injected and hardened. A transmission belt is drived by slicing roundly a cylindrically shaped body derived in these processes.

Abstract: A belt including a main body formed in to an endless configuration with a plurality of substantially equally pitched approximately round shafts embedded in the main body. Also included are a plurality of wires engaged along nearly an entire lengthwise portion of each of the shafts. The wires can be interlaced with the shafts or wound on the shafts and the wires cna be a twisted thread of organic fiber, inorganic fiber, or glass fiber. The main body can be made of rubber of high rigity having a longitudinal elastic coefficient of approximately 10-140 kg/mm.sup.2. The main body could also be made of refractory synthetic resin having a longitudinal elastic coefficient of 5-150 kg/mm.sup.2. Each shaft can be of substantially the same diameter along its entire length.

Abstract: A belt including a main body formed into an endless configuration with a plurality of substantially equally pitched approximately round shafts embedded in the main body. Also included are a plurality of wires engaged along nearly an entire lengthwise portion of each of the shafts. The wires can be interlaced with the shafts or wound on the shafts and the wires can be a twisted thread of organic fiber, inorganic fiber, or glass fiber. The main body can be made of rubber of high rigidity having a longitudinal elastic coefficient of approximately 10-140 kg/mm.sup.2. The main body could also be made of refractory synthetic resin having a longitudinal elastic coefficient of 5-150 kg/mm.sup.2. Each shaft can be of substantially the same diameter along its entire length.

Abstract: The invention relates to a precompaction belt for continuously operating belt-type prepresses for compacting preshaped sections from the particle mat passing through on a conveyor belt to produce particle boards, etc. The belt comprises a core of textile cord fabric with smooth outer PVC layers and with perforations at predetermined spacing.

Abstract: An endless power transmission belt construction or the like formed of material that is mainly polymeric material and a method and apparatus for forming the same are provided, the belt construction comprising a tension section, a compression section, and a load-carrying section disposed intermediate the tension section and the compression section with at least part of the material of at least one of the sections having been oriented by the force of electromagnetic field inmposed thereon.

Abstract: A power transmission belt having a load carrier in which a twisted cord of synthetic fiber such as polyester fiber or of inorganic fiber such as glass fiber is embedded. Said load carrier is made by final twisting a plurality of twisted yarn (one or plural single yarns first twisted) in the direction contrary to the first twisting direction. The first twisting angle should be in the range between 87.degree. and 93.degree. and the final twist multiplier should preferably be in the range between 400 and 1,600.

Abstract: A V-type power transmission belt incorporating one or more monofilament layers transverse of and directly below the tensile members to provide transverse stiffness to the belt construction. The monofilaments are directly bonded to the rubber body of the compression section.

Abstract: A toothed power transmission belt (10) is manufactured by an improved method to have substantially improved resistance to tooth root face cracking. The manufacture utilizes a modified rubber blend forming the teeth (15) and may utilize the same blend for embedding the load-carrying cords (14) to provide improved bonding of the teeth (15) to the cords (14) over a wide range of temperatures.

Abstract: This belt is used as power transmission belt, timing belt and transportation belt. It has a tension section, a compression section and a load carrier layer disposed between said two sections. The load carrier of the load carrier layer is composed of polyethyleneterephthalate filament which has at least 85 mol % ethyleneterephthalate as repeated unit and is at least 0.8 in ultimate viscosity, less than 0.190 in bifringence rate, less than 60 in the degree of orientation of amorphous portion and less than 15 equivalent/10.sup.6 g in terminal carboxyl group content, and said load carrier, when heated for 30 minutes at 150.degree. C. after an adhesive treatment and a heat treatment, is less than 5% in shrinkage percentage at dry heating and at least 6 g/denier in strength and less than 4% in elongation at a load of 2 g/denier.

Abstract: This disclosure relates to an endless belt comprising a bed of elastic material and a plurality of longitudinally extending tension cords embedded therein. Each of the cords has its ends interconnected to form a junction, and the junctions of the cords are distributed over the length of said belt so that the junctions are longitudinally offset.The disclosure further relates to a process of producing such an endless belt.

Abstract: A power transmission belt having a compression portion. The belt is composed of rubber having disposed therein at least approximately 2 to 100 parts by weight of ceramic powder per 100 parts by weight of rubber. The belt provides remarkably improved wear and adhesive resistance without decreased bending resistance.

Abstract: A reinforcing cord for use in radial tires, conveyor belts, hoses or driving belts, includes at least one strand of metal wires twisted along the longitudinal axis of the strand. Each metal wire has a substantially rectangular cross-section defining two opposite broad sides. The wires in the strand engage one another along their broad sides and preferably are wrapped around by a wrapping wire.

Abstract: A non-woven helical dryer belt is illustrated having a desired permeability profile which includes lateral zones 42 and 44 of reduced permeability and a medial zone 46 of increased permeability. The helical drive belt is made by joining a number of helix strips (20) together lengthwise and having the helix strips extend crosswise the fabric. A base monofilament element (40) extends across the entire width of the drive belt to impart a base permeability characteristic to the fabric. At opposing lateral edges of the fabric, an edge filler strip is inserted which reduces the permeability of the fabric in the lateral zones (42, 44). The height of the base and edge monofilament elements is made such that they do not overlap one another and are maintained in their side by side arrangement in the lateral zones of reduced permeability.

Abstract: A polymeric belt construction and method of making the same are provided, the belt construction comprising a polymeric belt body and a polymeric-coated fabric layer secured to a surface of the polymeric belt body, the fabric layer comprising a fabric layer having opposed sides and a layer of polymeric material secured to one of those sides and having an outer surface facing away from the fabric layer and being secured to the surface of the polymeric belt body by a heat curing operation on the belt body and the layer in the assembled relation thereof, the polymeric layer comprising a foamed polymeric layer whereby the outer surface thereof readily conforms to the surface of the belt body to improve the bond therebetween during the heat curing operation thereof.

Abstract: An automatic tension maintaining power transmission belt, a method of making the same and a method for maintaining tension in a rubber belt transmission. The belt is made by embedding polyester fiber cord employing a polyester of high relative viscosity and after being subjected to a hot stretching process as a tensile member in rubber forming the belt. The thermal contraction force of the polyester cord is to be substantially maintained by avoiding shrinkage of the belt during vulcanization.The belt of the present invention is characterized by exhibiting shrinkage of said polyester fiber cords through thermal contractive forces caused by frictional heat generated by slippage of the belt upon lowering of belt tension during belt running. The minimum tension necessary for transmission of power is recovered, the slippage is eliminated for a while and proper tension is maintained. Such automatic action repeats when it becomes needed again.

Abstract: A polymeric-coated fabric layer, product using the layer, method and apparatus for making such layer and a method of making a belt construction comprising a polymeric belt body having a surface and a polymeric-coated fabric layer having an outer surface secured to the surface of the belt body are provided, the method of making a belt construction comprising the steps of providing a fabric layer having opposed sides, securing a main layer of polymeric material to one of the sides of the fabric layer, forming the main layer of polymeric material to have the outer surface facing away from the one side of the fabric layer, disposing the outer surface of the fabric layer against the surface of the belt body to provide an assembly thereof, bonding the outer surface of the layer to the surface of the belt body by a heat curing operation on the assembly, securing a gauge building layer of fibers to the one side of the fabric layer with another layer of polymeric material that is disposed on the one side before the la

Abstract: A power transmission belt manufacture wherein a modified rubber blend is utilized as at least one portion of the belt, with the blend including a silane coupling agent, silica and carbon black. The blend is advantageously adapted for use as the cushion rubber embedding the load-carrying cords of the belt. The invention comprehends the use of the blend further as at least one of the compression and tension sections of the belt, as desired. The modified rubber blend is advantageously utilized in power transmission belts having widely varying configurations and characteristics.

Abstract: A fluid permeable fabric is disclosed having particular advantages as a dryer fabric for papermaking is disclosed. The fabric includes a number of helix A extending cross-wise in the fabric and joined together along the length dimension by pintles 38. Crevice spaces 40 formed by intermeshing bend portions extending into the loop openings C are closed by a contoured filler strip B. The contoured filler strip occupies the loop openings and includes contoured edges 56 which penetrate and occupy a substantial portion of the crevice spaces. A fabric having a low permeability is thus provided. An enlarged heat radiating surface 52 facing the paper side 39 of the fabric increases the heat transfer occurring in the paper web W to expedite drying. Crevice space 40 and tapered edges 56 of the filler element provide a guiding function which facilitates filler insertion in the loop openings.

Abstract: A strip of material adapted for use in a power transmission belt construction, method of making such strip, and belt construction and method of making same employing the strip are provided wherein such strip comprises an uncured polymeric matrix material having opposed surfaces and a plurality of elongate reinforcing fibers disposed substantially uniformly throughout the matrix material in a random manner and in parallel relation and a plurality of parallel spaced apart bleeder yarns are adhered against at least one of the surfaces with the strip being adapted to be laminated against associated layer means comprising the belt construction on at least one common interface with the bleeder yarns along the interface and the bleeder yarns are adapted to serve as fluid passages for any fluid present at the interface during curing of the strip and its associated layer means.

Abstract: This invention relates to a flexible article comprising rubberlike body having a surface hard film, e.g., a hose, a handrail, a belt or a diaphragm, wherein a fiber layer comprising non-woven or woven fabrics is positioned between the surface hard film and the rubberlike body by use of an adhesive to eliminate generation of the so-called joint cracking phenomenon, i.e., extension of cracking to the rubberlike body accompanying cracking at the hard film caused by any shock.

Abstract: A power transmission belt which is substantially V-shaped in cross-section has insert members which are resistant to transverse compression embedded in an elastomeric or plastomeric body. Protective layers of elastomer or plastomer having oriented fibers dispersed therein cover the flanks of the belt and, if necessary, are disposed in addition to the belt body adjacent to a base of the belt.

Abstract: Endless, flexible anti-backbend belts having a molded elastomeric body are disclosed and comprise a plurality of longitudinal high tensile modulus cords embedded in the belt near the inside surface and a layer of substantially incompressible material facing outwardly and forming the outside surface of the belt. When the belt is in a straightened position, the incompressible material provides a resistance to backbending. Other embodiments are also disclosed that operate in combination with drive lugs on the inside surface of a conveyor belt, and the separation of the tensile cords of the conveyor and anti-backbend belts provide a resistance to backbending such as to support the conveyor in the area between its drive and take-up pulleys.

Abstract: A strip of material adapted for use in a power transmission belt construction, method of making such strip, and belt construction and method of making same employing the strip are provided wherein such strip comprises an uncured polymeric matrix material having opposed surfaces and a plurality of elongate reinforcing fibers disposed substantially uniformly throughout the matrix material in a random manner and in parallel relation and a plurality of parallel spaced apart bleeder yarns are adhered against at least one of the surfaces with the strip being adapted to be laminated against associated layer means comprising the belt construction on at least one common interface with the bleeder yarns along the interface and the bleeder yarns are adapted to serve as fluid passages for any fluid present at the interface during curing of the strip and its associated layer means.

Abstract: A flexible load-carrying cord which is adapted for embedment in a polymeric product, apparatus and method for making such a cord, and product utilizing same are provided wherein the cord comprises a plurality of elements which are twisted in one direction and normally have a tendency to untwist and a polymeric sleeve is bonded around the cord with the sleeve comprising a polymeric matrix having a plurality of discrete randomly arranged fibers embedded therein with the fibers being disposed in a helical pattern which extends in a direction opposite from the one direction and the sleeve with its fibers serving to substantially eliminate the tendency of the elements to untwist.

Abstract: An endless conveyor belt has an elastomeric body and a tension resistant member embedded therein. The tension resistant member comprises a plurality of spaced sets of three textile or metal cords each which extend longitudinally through the belt body and are substantially parallel to the faces of the belt. The cords are spaced from each other to outline a portion of the belt which has a substantially equalateral triangular shape in cross-section with the cords at the apices.

Abstract: An adjustless V-belt and method of manufacture. The V-belt comprises: a compressive rubber layer made of a heatproof or coldproof rubber and an adhesion rubber layer laminated on said compressive rubber layer. A group of cogs protrude from said adhesion rubber layer with a predetermined pitch and depth and a longitudinally stretchable cover canvas covers the cogs, and the roots between said cogs. Rope tensile members are embedded between the adhesion rubber layer and the group of cogs with a regular pitch line and in the cylindrical state such a manner that parts of the tensile members are in contact with said cover canvas. The rope tensile members have a high thermal contraction stress of at least 3.5 g/denier which is the differential between a thermal contraction stress at 100.degree. C. and that at room temperature (about 20.degree. C.). Short fibers are embedded in the compressive rubber layer in such a manner that the short fibers are orientated laterally therein.

Abstract: A self orienting power transmission belt is provided which has a round cross-section and a triangular core. The belt is constructed by wrapping a rubberized fabric about a triangular core comprising a plurality of longitudinally extending load-carrying members embedded in a rubber compound, and curing the resulting wrapped core in a curing mold having a round cross-section. This belt is particularly useful in a multi-planar drive system.