Abstract: This invention provides an improved power transmission belt which has a relatively thick rubber backing layer for improved interface with associated pulleys and improved wear resistance. The belt also has an aramid, glass, or other high modulus relatively inextensible cord secured by a layer of fabric.

Abstract: An endless belt construction and method of making the same are provided, the endless belt construction being formed mainly of polymeric material and comprising a tension section, a compression section, a load carrying section disposed between the tension section and the compression section and being secured thereto, one of the sections comprising a plurality of layers of polymeric material disposed in stacked relation, and a paper-thin sheet of non-woven material disposed between an adjacent pair of the layers of polymeric material and being secured thereto during heat curing of the belt construction, wherein the thin sheet bleeds gaseous matter trapped between the adjacent pair of layers during the heat curing.

Abstract: An endless belt construction and method of making the same are provided, the endless belt construction being formed mainly of polymeric material and comprising a tension section, a compression section, a load carrying section disposed between the tension section and the compression section and being secured thereto, one of the sections comprising a plurality of layers of polymeric material disposed in stacked relation, and a paper-like sheet of non-woven material disposed between an adjacent pair of the layers of polymeric material and being secured thereto.

Abstract: The combination of an endless power transmission belt construction and a pulley therefor, the belt construction and methods of making the same are provided, the belt construction having opposed inner and outer surfaces with one surface defining a plurality of longitudinally disposed and alternately spaced apart like projections and grooves that are adapted to mesh with a ribbed surface of one pulley, and a planar surface adapted to operate on a planar surface of another pulley, wherein the planar surface of the belt construction comprises a polymeric material. The polymeric material of the planar surface provides a greater tractive force on the planar surface of the pulley. The planar surface further provides means to prevent abrasive particles accumulating thereon, thereby reducing wear upon the planar surface of the pulley.

Abstract: The combination of an endless power transmission belt construction and a pulley therefor, the belt construction and methods of making the same are provided, the belt construction having opposed inner and outer surfaces with each surface defining a plurality of longitudinally disposed and alternately spaced apart like projections and grooves that are adapted to mesh with a ribbed surface of a pulley, the depth of the grooves of each of the surfaces of the belt construction being substantially less than the approximately 2.4 mm depth of the grooves of the known belt construction that is adapted to have one of the opposed surfaces thereof mesh with the ribbed surface of the pulley, the belt construction also comprising a cushion section and cords with the cushion section being initially disposed on only one side of the cords and the cords thereafter being embedded therein.

Abstract: The combination of an endless power transmission belt construction and a pulley therefor, the belt construction and methods of making the same are provided, the belt construction having opposed inner and outer surfaces with one surface defining a plurality of longitudinally disposed and alternately spaced apart like projections and grooves that are adapted to mesh with a ribbed surface of one pulley, and a planar surface adapted to operate on a planar surface of another pulley, wherein the planar surface of the belt construction comprises a polymeric material. The polymeric material of the planar surface provides a greater tractive force on the planar surface of the pulley. The planar surface further provides means to prevent abrasive particles accumulating thereon, thereby reducing wear upon the planar surface of the pulley.

Abstract: A belt construction having opposed inner and outer surfaces with each surface defining a plurality of longitudinally disposed and alternately spaced apart like projections and grooves that are adapted to mesh with a ribbed surface of a pulley, the depth of the grooves of each of the surfaces of the belt construction being substantially less than the approximately 2.4 mm depth of the grooves of a similar belt construction that is adapted to have one of the opposed surfaces thereof mesh with the ribbed surface of the pulley in the same manner as the first mentioned belt construction, the belt construction having a tension section comprising a cushion section and cord member, the cushion section being initially disposed on only one side of the cord member with the cord member thereafter being embedded therein.

Abstract: The combination of an endless power transmission belt construction and a pulley therefor, the belt construction and methods of making the same are provided, the belt construction having opposed inner and outer surfaces with each surface defining a plurality of longitudinally disposed and alternately spaced apart like projections and grooves that are adapted to mesh with a ribbed surface of a pulley, the depth of the grooves of each of the surfaces of the belt construction being substantially less than the approximately 2.4 mm depth of the grooves of a similar belt construction that is adapted to have one of the opposed surfaces thereof mesh with the ribbed surface of the pulley in the same manner as the first mentioned belt construction.

Abstract: The combination of an endless power transmission belt construction and a pulley therefor, the belt construction and methods of making the same are provided, the belt construction having opposed inner and outer surfaces with each surface defining a plurality of longitudinally disposed and alternately spaced apart like projections and grooves that are adapted to mesh with a ribbed surface of a pulley, the depth of the grooves of each of the surfaces of the belt construction being substantially less than the approximately 2.4 mm depth of the grooves of a similar belt construction that is adapted to have one of the opposed surfaces thereof mesh with the ribbed surface of the pulley in the same manner as the first mentioned belt construction.

Abstract: The combination of an endless power transmission belt construction and a pulley therefor, the belt construction and methods of making the same are provided, the belt construction having opposed inner and outer surfaces with one surface defining a plurality of longitudinally disposed and alternately spaced apart like projections and grooves that are adapted to mesh with a ribbed surface of one pulley, and a planar surface adapted to operate on a planar surface of another pulley, wherein the planar surface of the belt construction comprises a polymeric material. The polymeric material of the planar surface provides a greater tractive force on the planar surface of the pulley. The planar surface further provides means to prevent abrasive particles accumulating thereon, thereby reducing wear upon the planar surface of the pulley.

Abstract: An endless power transmission belt construction, a rotatable pulley therefor, a combination of the belt construction and pulley and methods of making the same are provided, the belt construction having opposed side edges and having an inner surface defining a plurality of longitudinally disposed and alternately spaced apart like projections and grooves for meshing with an outer peripheral ribbed surface of a rotatable pulley, each projection of the belt construction having a generally V-shaped transverse cross-sectional configuration defined by tow substantially straight side edges that converge from the respective apexes of the grooves of the belt construction that are on opposite sides of that projection to an apex of that projection, the side edges of each projection of the belt construction defining an angle of approximately 60.degree. therebetween with the thickness of the belt construction being substantially the same as the thickness of a similar belt construction wherein the angle is approximately 40.

Abstract: An endless power transmission belt construction, a rotatable pulley therefor, a combination of the belt construction and pulley and methods of making the same are provided, the belt construction having opposed side edges and having an inner surface defining a plurality of longitudinally disposed and alternately spaced apart like projections and grooves for meshing with an outer peripheral ribbed surface of a rotatable pulley, each projection of the belt construction having a generally V-shaped transverse cross-sectional configuration defined by two substantially straight side edges that converge from the respective apexes of the grooves of the belt construction that are on opposite sides of that projection to an apex of that projection, the side edges of each projection of the belt construction defining an angle of approximately 60.degree. therebetween with the thickness of the belt construction being substantially the same as the thickness of a similar belt construction wherein the angle is approximately 40.

Abstract: An endless power transmission belt construction, a rotatable pulley therefor, a combination of the belt construction and pulley and methods of making the same are provided, the belt construction having opposed side edges and having an inner surface defining a plurality of longitudinally disposed and alterntely spaced apart like projections and grooves for meshing with an outer peripheral ribbed surface of a rotatable pulley, each projection of the belt construction having a generally V-shaped transverse cross-sectional configuration defined by two substantially straight side edges that converge from the respective apexes of the grooves of the belt construction that are on opposite sides of that projection to an apex of that projection, the side edges of each projection of the belt construction defining an angle of approximatly 60.degree. therebetween with the thickness of the belt construction being substantially the same as the thickness of a similar belt construction wherein the angle is approximately 40.

Abstract: A tensioner for an endless power transmission belt is provided wherein such belt is employed in driving a sheave comprising at least one accessory which upon being driven creates a slack side and a tight side in the belt on opposite sides of the sheave and the tensioner comprises, a first support arm having pivot means, a first idler pulley rotatably carried by the arm, and a pivot pin extending through the pivot means and supporting the first arm adjacent the sheave with the first pulley engaging the slack side to enable tensioning thereof; and, the tensioner further comprises a second support arm supported by the pivot pin, a second idler pulley rotatably carried by the second arm and engaging the tight side of the belt, and means connecting the second arm to the first arm to thereby move the first arm and its pulley into belt tensioning and dampening engagement against the slack side once the tight side of the belt moves the second pulley and second arm.

Abstract: An apparatus and method for making a belt construction having a plurality of alternating annular belt projections and grooves along its axial length are provided wherein the apparatus comprises an open ended building drum for building a tubular uncured structure, a curing device for curing the structure to define a belt sleeve, a cooling device for cooling the sleeve with the sleeve disposed around the drum, and a device for supporting and rotating the drum and sleeve to enable cutting thereof with a rotatable cutter wherein the supporting and rotating device comprises a plurality of rotatable support shafts including a driving shaft, with the shafts being adapted to be disposed within the hollow open ended drum and into pressure engagement against the inside surface thereof to support such drum, a drive for rotating the driving shaft with the shafts in pressure engagement against the inside surface to provide rotation of the drum and sleeve, and a cutter control apparatus for controlling the cutter during ro

Abstract: A wheel wedge 10 is provided which comprises a wheel contacting surface 20, a first ground-contacting surface 11 and a second ground-contacting surface 15. The first surface 11 comprises a plurality of transversely extending ribs 13 and the second surface 15 comprises a plurality of cylindrical members 16, such as tire studs, embedded therein.

Abstract: An endless power transmission belt having a trapezoidal cross-section comprising a belt body, two cord fabric cover layers, and a layer of woven fabric located between said belt body and said cord fabric cover layers; said cord fabric comprising strength cords extending at an angle to the longitudinal axis of the belt, and weak tie strands holding said strength cords in parallel position, the strength cords of one cord fabric cover layer extending at substantially opposite angles to the strength cords of the other cord fabric cover layer.

Abstract: An endless power transmission belt and method of making the same are provided wherein the belt comprises a tension section, a compression section, and a load-carrying section with the load-carrying section being a flat strip of rubber bonded between the tension and compression sections and having a plurality of elongated discrete fibers embedded therein.

Abstract: An endless power transmission belt for operation in an endless path is provided and comprises a plurality of laterally spaced belt elements and a tie band interconnecting the belt elements. The tie band comprises a plurality of cooperating layers with one of the layers comprising a plurality of tensile members arranged in spaced substantially parallel relation along the endless path and with each of the tensile members extending across the entire transverse dimension of the tie band; and, the tensile members provide the strength for holding the belt elements in spaced relation. Another of the layers of the plurality of layers of the tie band is in the form of at least one fabric layer which improves the overall structural integrity of the tie band.