Abstract: A pulley construction and method of making the same are provided, the pulley construction having a pair of opposed flanges respectively provided with surfaces for engagement with a V-belt construction when the V-belt construction is disposed therebetween. The pulley construction has structure for moving one of the flanges axially relative to the other of the flanges either in a direction toward the other flange or in a direction away from the other flange and has a fluid dampening unit separate from the structure for moving and being operatively associated with the one flange to dampen the axial movement of that one flange in either of the directions relative to the other flange with a restrictive force, the dampening unit comprising a flexible bladder having one part thereof operatively interconnected to that one flange.

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 quotient of the top width to belt thickness is approximately 2.0, the quotient of the bottom to top tooth pitch is approximately 1.40, the quotient of the bottom to top tooth depth is approximately 1.77 and the quotient of the belt thickness to flex thickness is approximately 3.98.

Abstract: An endless power transmission belt construction and 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 having a peripheral face and a medial slot passing therethrough and receiving part of the carrier therein. Each belt element has a slit in the peripheral face thereof that leads to the slot thereof and a hinge spaced from the slit thereof that permits the belt element to have the slit thereof opened sufficiently to permit at least part of the carrier to be received therethrough for subsequent positioning in the slot thereof and thereafter be moved to a closed position to prevent at least that part of the carrier from escaping through the slit. Each belt element has two adjacent surfaces defining the slit thereof therebetween.

Abstract: A method of making an arched endless belt and belt made employing the method are provided wherein the method comprises the steps of disposing in tubular form a plurality of uncured belt-defining layers with the layers being adapted to define corresponding sections of the belt and curing the layers in a controlled environment to define the belt having a longitudinal axis and an arched configuration relative to the axis wherein prior to the disposing step the method comprises wrapping a shaping material consisting of an uncured gum material around a belt building device and the disposing step comprises wrapping the plurality of layers against the shaping material so that during the curing step the shaping material and controlled environment cooperate to define the arched configuration of the belt including all of its layers and during the curing step the shaping material is bonded to the layers and comprises an inner portion of the belt with the cured gum shaping material serving as a crack barrier for such inn

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 quotient of the bottom to top tooth pitch ratio of the belt construction is approximately 1.40 and the quotient of the bottom to top tooth depth ratio thereof is approximately 1.77 while the quotient of the belt thickness to flex thickness ratio thereof is approximately 3.98.

Abstract: A wrapped, molded belt, and a method for making the same, are provided wherein the belt has a cover made from cord fabric. The angle of the strength cords of the cord fabric is different from the angle of the cords on the sides of the belt. The belt is produced by wrapping a desired width of cord fabric around a belt body, skewing the cords a desired amount and in a desired direction, depending upon which face of the belt body is being covered, and finally, curing the belt.

Abstract: Endless power transmission belts of spliceless, Mobius strip construction comprising a continuous strength member embedded in an elastomeric material, together with methods for the manufacture of such belts, are provided.

Abstract: An improved ring molding apparatus for molding toothed V-belts is provided which comprises, in one embodiment, a ring mold having an outer circumferential surface which is grooved to provide a mating surface for a bladder having an inner surface having a plurality of tooth-forming projections and recesses. According to another embodiment, the bladder has a plurality of axially-running projections and recesses arranged in an annulus for each of the mold cavities. Also provided is a method for making molded V-belts which comprises curing the belt in the above molds.

Abstract: A bandsaw blade of Mobius strip construction is provided. Also provided is a bandsaw which utilizes such blade.

Abstract: An endless power transmission belt, method of making same, and drive system using same are provided wherein such belt has a portion which has a plurality of spaced belt elements defined by alternating projections and recesses and a triaxial fabric bonded against the elements which defines an abrasion-resistant exposed surface of the elements with the triaxial fabric also minimizing shearing stresses in each element due to the isotropic character of such fabric which provides improved load distribution therethrough as well as improved tear resistance thereof. The belt may have elements in the form of load-transmitting teeth with the triaxial fabric having three sets of yarn courses in which one of the three sets is substantially protected by the two other yarn sets and the one yarn set provides reinforcement of the teeth after substantial wear of the two other yarn sets resulting in an increased service life for the belt.

Abstract: An endless power transmission belt made primarily of an elastomeric material is provided and has a load-carrying section, a ribbed section adjacent the load-carrying section with the ribbed section having a plurality of ribs and the ribs being defined by a plurality of alternating projections and recesses, and a knit cover fabric bonded against the ribs and defining the inside surface of the belt with the knit fabric affording extensibility in a plurality of directions to assure the belt is particularly adapted to be operated in associated sheaves with minimum stresses being imposed thereon due to the cover fabric.