Abstract: A polymeric-coated fabric layer, product utilizing the layer and method and apparatus for making such layer are provided, the polymeric-coated fabric layer comprising a fabric layer having opposed sides, a layer of polymeric material secured to one of the sides of the fabric layer and having an outer surface facing away from the one side of the fabric layer, and a plurality of gauge building layers having been secured in stacked relation to the one side of the fabric layer, each gauge building layer having a plurality of voids therein and the polymeric layer filling the voids of at least one of the gauge building layers. One of the gauge building layers comprises a foamed polymeric layer and another of the gauge building layers comprises a plurality of fibers.

Abstract: An elastomer coated bias fabric for reinforcing power transmission belts and the like is disclosed wherein one surface of the fabric is provided with an uncured, tacky, elastomeric composition. The fabric is prepared by pre-impregnating the fabric, transversely stretching the fabric on a tenter frame, coating a latex composition on both surfaces of the fabric while maintaining the fabric in its transversely stretched condition, and after drying the fabric, overcoating one surface only of the coated fabric with a tackified, latex composition which may contain a chemical linking agent which enhances the bond between the elastomer and the fabric by forming a chemical bridge between them. A method for manufacturing coated fabric is also disclosed.

Abstract: A tensioner for a power transmission belt that is adapted to be operated in an endless path and a method of making the same are provided, the tensioner comprising a support unit for being fixed relative to the belt, a belt engaging unit carried by the support unit and being movable relative thereto, a mechanical spring unit operatively associated with the support unit and the belt engaging unit for urging the belt engaging unit relative to the support unit and against the belt with a force to tension the belt, and a fluid dampening unit operatively associated with the support unit and the belt engaging unit to dampen the movement of the belt engaging unit relative to the support unit in at least one direction of movement thereof, the fluid dampening unit comprising a rotary dampening unit. The rotary dampening unit and the spring unit are coaxially aligned. The support unit has an opening passing therethrough for receiving a fastening member that will fasten the support unit to a vehicle bracket or the like.

Abstract: A polymeric-coated fabric layer, product utilizing the layer and a method of making such layer are provided, the layer having opposed surfaces one of which is adapted to be secured to a surface of a polymeric product and the other of which is adapted to be a contact face for the product and comprising a fabric layer having opposed sides, and two layers of polymeric material secured in stacked relation to one of the sides of the fabric layer with the outer layer of polymeric material defining the one surface of the polymeric-coated fabric layer, only the intermediate polymeric layer initially having a slip agent therein that under certain conditions will migrate through the outer polymeric layer to the outer surface thereof to provide a degree of reduction in the surface coefficient of friction for the contact face of the product.

Abstract: An endless power transmission V-belt construction and method of making the same are provided, the belt construction being formed mainly of polymeric material and having rounded top and bottom teeth respectively extending along the length of the top and bottom surfaces of the belt construction, the belt construction comprising a tension section having the top surface, a compression section having the bottom surface, and a load-carrying section disposed intermediate the tension section and the compression section. The bottom to top tooth pitch ratio of the belt construction, the bottom to top tooth depth ratio thereof, and the belt thickness to flex thickness ratio thereof may be varied in specific instances to optimize performance in specific uses.

Abstract: A substantially flat layer of material and method for making the same are provided, the flat layer of material having opposed substantially parallel spaced apart flat surfaces and comprising polymeric material and reinforcing particles disposed in the polymeric material and having at least a part thereof with the long dimensions thereof oriented so as to be substantially perpendicular to the opposed surfaces thereof.

Abstract: A polymeric-coated fabric layer, product utilizing the layer and a method of making such layer are provided, the layer having opposed surface one of which is adapted to be secured to a surface of a polymeric product and the other of which is adapted to be a contact face for the product and comprising a fabric layer having opposed sides, and two layers of polymeric material secured in stacked relation to one of the sides of the fabric layer with the outer layer of polymeric material defining the one surface of the polymeric-coated fabric layer, only the intermediate polymeric layer initially having a slip agent therein that under certain conditions will migrate through the outer polymeric layer to the outer surface thereof to provide a degree of reduction in the surface coefficient of friction for the contact face of the product.

Abstract: A tensioner for a power transmission belt that is adapted to be operated in an endless path and a method of making the same are provided, the tensioner comprising a support unit for being fixed relative to the belt, a belt engaging unit carried by the support unit and being movable relative thereto, a mechanical spring unit operatively associated with the support unit and the belt engaging unit for urging the belt engaging unit relative to the support unit and against the belt with a force to tension the belt, and a fluid operated transmitting unit operatively associated with the spring unit and the belt engaging unit for translating motion therebetween whereby the spring unit is adapted to be disposed remote from the belt engaging unit.

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 field line means imposed thereon.

Abstract: A belt pulley and method of making the same are provided, the pulley having a hub and a peripheral groove for receiving part of an endless belt therein that is to drive the pulley or be driven thereby whereby the pulley is adapted to be rotated about the axis of the hub. The pulley has a plurality of vanes extending outwardly from at least one of the opposed sides thereof, the vanes comprising a plurality of spaced apart curved vanes of substantially the same size and shape and disposed in a plurality of circular arrays that are generally concentrically disposed relative to each other about the axis and on the one side of the pulley for acting on fluid adjacent the pulley to tend to cool the pulley with the fluid. The curved vanes in each circular array are each disposed substantially evenly between an adjacent pair of curved vanes in the circular array adjacent thereto whereby the number of the curved vanes in each circular array is the same, each curved vane having a convex side and a concave side.

Abstract: The following invention provides a fragrant wall covering having a polymer entrapped emollient-moisturizer composition incorporated therein. Since the emollient-moisturizer composition is incorporated into a dry blend of the polymeric material which is used to make the wall covering, the emollient-moisturizer composition is distributed substantially evenly throughout the polymer of the wall covering. In the illustrated embodiment of the invention, the emollient-moisturizer composition comprises a volatilizable material having a strong, recognizable odor. Because of its even distribution in the polymer of the wall covering, the volatilizable material is released gradually into the atmosphere, and the wall covering retains said recognizable odor for a substantial period of time.

Abstract: An endless power transmission belt construction and a transverse belt element therefor as well as a method of making the same are provided, the belt construction comprising an endless flexible carrier that has a longitudinal axis and a plurality of transverse belt elements assembled on the carrier. Each belt element comprises a plurality of parts secured together to define an opening passing transversely therethrough and receiving the carrier therein. One of the parts of each belt element comprise a generally C-shaped clip that in a direction substantially transverse to the longitudinal axis of the carrier snaps over and substantially encircles and holds the remaining parts of the respective belt element in their assembled relation.

Abstract: A brake system for a railway vehicle and method of making same are provided and such brake system comprises a brake rod member, a horizontal supporting member which is adapted to support the rod member for sliding movements thereon, and an antifriction component carried by the supporting member with the component serving to minimize wear and enable antifriction movements during the sliding movements and wherein the component comprises a solid strip portion of substantially rectangular cross-sectional configuration with the system further comprising at least one self-contained clip device for locking the strip portion against the supporting member and the clip device comprises a pair of resilient parallel legs and locking projections extending from the outer end portions of the parallel legs toward each other, with the clip device being disposed with the parallel legs embracing opposed vertical surfaces of the supporting member and with the projections snap locked beneath a bottom surface thereof.

Abstract: A wear resistant liner for use between a center plate of a body bolster and a bolster bowl of a truck bolster of a railway vehicle is provided wherein such liner comprises a polymeric laminate comprised of a first material which is adapted to reduce load concentration against a peripheral annular flange of the bolster bowl and a second material which provides an antifriction surface engaging the flange with the laminate resulting in an increased operating life for such flange.

Abstract: A laminated printing blanket having compressible and resilient properties and a method for its production are provided. The compressible characteristics are provided by disposing a compressible intermediate layer having voids, between a base ply and a surface layer. The voids in the intermediate layer are produced by dispersing a blowing agent in an elastomer, sandwiching the elastomer containing the blowing agent between two fabric layers, and activating the blowing agent to produce voids. By activating the blowing agent before disposing the intermediate layer between the base ply and the surface layer, the gases from the blowing agent are prevented from migrating to the base ply or to the surface layer.

Abstract: A hose construction, a hose clamp structure and methods of making the same are provided, the hose construction comprising a hose made primarily of polymeric material and having a reinforcing wire, and an outer hose clamp structure connected to the hose and having two ends which when interconnected together are adapted to secure the hose onto a member telescoped in the hose by tightly engaging a substantially annular portion of the hose around the member. The hose clamp structure has a groove therein that nestably receives part of the reinforcing wire therein. Fastening members secure the nested part of the reinforcing wire to the hose clamp structure whereby the fastening members connect the hose clamp structure to the hose.

Abstract: The present invention provides a method for making a thermoplastic mandrel in which at least two sections of a thermoplastic rod, comprising a thermoplastic material which has been compounded with a finely divided metal or a metallic oxide filler, is subjected to a high voltage electrical induction field in a mold, causing fusion of the rod ends. Prior to the fusion, the ends of the thermoplastic rod are cut in a wedge shape, and in the preferred method, the wedge shaped ends meet at an angle of 90.degree. and are pressed together in the mold. The heat resulting from energizing the metal filler in said thermoplastic rods by induction, causes simultaneous melting of both thermoplastic rod ends and subsequent fusion of said rod ends. The thermoplastic mandrel made according to this method has a bond at the splicing point which is smooth, flash free, fused, solid and seamless, said mandrel being free of warping, shrinking and deformation.

Abstract: A long synchronous belt made primarily of elastomeric material is provided which comprises a plurality of narrow, toothed strips joined in side-by-side fashion, each strip having at least one longitudinally-extending reinforcement located therein. Also provided is a method for making such a belt which comprises the steps of providing a first belt sleeve having the desired tooth configuration, cutting the first sleeve into a continuous strip, winding the strip to form a second sleeve of desired circumferential length, joining the adjacent strips of the second sleeve in side-by-side fashion, and cutting at least one belt of desired width from the second sleeve.

Abstract: An endless power transmission belt construction and a transverse element therefor as well as a method of making the same are provided, the belt construction comprising an endless flexible carrier and a plurality of transverse belt elements assembled on the carrier. Each belt element has a recess therein defining an intermediate transverse shoulder for engaging the inside surface of the carrier and a pair of inwardly facing shoulders confining the carrier therebetween, each inwardly facing shoulder having an opening interrupting the same and being aligned with the opening in the other inwardly facing shoulder of its respective element. Each belt element has a pin provided with opposed ends respectively disposed in the openings of the inwardly facing shoulders thereof whereby the carrier is confined between the pin and the transverse shoulder of each belt element. The pin of each belt element has its opposed ends snap-fitted into the respective openings of the inwardly facing shoulders thereof.

Abstract: A method of making the combination of a power transmission belt that is to be operated in an endless path and a tensioner for the belt is provided, the tensioner comprising a support unit fixed relatively to the belt, a belt engaging unit carried by the support unit and being movable relative thereto, a biasing unit operatively associated with the support unit and the belt engaging unit urging the belt engaging unit relative to the support unit in a belt tensioning direction against the belt with a force to tension the belt, and a control unit operatively associated with the biasing unit to progressively decrease its urging force on the belt engaging unit as the speed of movement of the belt progressively increases from a certain low speed of movement thereof to a certain high speed of movement thereof.