Abstract: A self-cleaning woven wire screening or screen for classifying material. The screening includes a plurality interwoven warp and weft wires forming a plurality of openings in a screen section through which materials to be classified can pass through. The weft wires are preferably configured so that the high points or raised knuckles of the weft wires have a larger diameter, cross-sectional height or thickness than previously possible. Preferably, one or more of weft wires have a configuration that prolongs operational life of the screen or screening and obviates the need for protective encasement blocks (e.g., polyurethane encasement blocks) encasing the weft wires.

Abstract: An assembly for maintaining tension in a drive belt features a housing mounted on a base. The housing contains a biasing element that exerts torque on the housing to bias the housing in a radial direction. A lever arm is connected to the housing and rotates with the housing in response to the bias of the biasing element. A pulley is connected to the lever arm and engages a drive belt in response to the bias force of the biasing element on the lever arm. The pulley deflects the shape of the belt to provide tension in the belt. In one embodiment, the apparatus allows the user to switch the position of the biasing element and alter the direction of torque on the lever arm. In another embodiment, the lever arm and pulley are removable from the housing and replaceable with other arms and pulleys having different configurations.

Abstract: An assembly for maintaining tension in a drive belt features a housing mounted on a base. The housing contains a biasing element that exerts torque on the housing to bias the housing in a radial direction. A lever arm is connected to the housing and rotates with the housing in response to the bias of the biasing element. A pulley is connected to the lever arm and engages a drive belt in response to the bias force of the biasing element on the lever arm. The pulley deflects the shape of the belt to provide tension in the belt. In one embodiment, the apparatus allows the user to switch the position of the biasing element and alter the direction of torque on the lever arm. In another embodiment, the lever arm and pulley are removable from the housing and replaceable with other arms and pulleys having different configurations.

Abstract: A method for producing the conveyor assembly is also provided. A plurality of layers of reinforcing material are arranged in overlapping relation. A binding material such as thermoset urethane is deposited on the reinforcing material to bind the reinforcing materials together, thereby forming a composite material. A gripping material is deposited on the composite material, forming a gripping layer. The combined gripping layer and composite material are cured so that the gripping layer permanently bonds to the composite material. The combined gripping layer and composite material are then cut into a plurality of belt links, such that the gripping layer of each belt link is coextensive with the upper surface of the belt link. The belt links are then assembled to produce a link belt having a gripping surface formed from the gripping layers of the individual belt links.

Abstract: A mounting device for coaxially anchoring a machine element upon a rotary shaft. The device fits between the interior bore of the machine element and the cylindrical surface of the shaft and is effective to position the element at any desired position longitudinally of the shaft and at any angular position circumferentially of the shaft. The device has inner and out sleeves, the mating surfaces of which are similarly tapered so that relative axial displacement of the sleeves effects expansion and contraction of the interior bore and external surface of the combined elements. Rotation of a threaded nut at one end of the device effects the relative axial displacement of the inner and outer sleeves to afford expansion and contraction of the outer sleeve.

Abstract: A keyless mounting device has inner and outer tubular sleeves telescopically engaged. The confronting surfaces of the inner and outer sleeves are tapered so that relative axial displacement of the sleeve in one direction expands the outer surface of the outer sleeve and contracts the inner surface of the inner sleeve. Relative axial displacement in the other direction allows the outer surface to contract and the inner surface to expand. The inner and outer sleeves are threaded at one end and the free end of each sleeve adjacent the threads provides an annular abutment surface. An adjustor is provided to effect the relative axial displacement of the sleeves. The adjustor has one set of threads to engage the threads of the inner and an abutment surface to engage the abutment surface of the outer when the threads are tightened and second threads adapted to engage the threads of the outer and second abutment surface adapted to engage the abutment surface of the inner when loosening the sleeves.

Abstract: A conveyor assembly comprising a series of belt links arranged in superimposed successive overlapping relation secured together by interlocking belt link fasteners and apertures, combined with a compressible layer to reduce the noise produced when material is placed on the conveyor assembly. The compressible layer is formed of a plurality of cushioning links that interlock with the links of the belt forming a surface which contacts the materials being conveyed.

Abstract: A support for the guide rail of a conveyor which enables the guide rail to be adjusted among a plurality of pre-set positions in a quick and simple manner with precision. The guide rail is supported by a generally horizontal support arm which is supported by a vertical post on the frame of the conveyor alongside the conveyor belt. The arm has a series of notches or receptacles along the underside of its length and the post has a stop member having a latch adapted to engage in the receptacles. The stop member is a cap telescopically engaged on the post and biased upwardly by a spring. The cap includes latch portions facing upwardly adapted to engage in the notches on the arm.

Abstract: An elongated frictional drive pad is attached to an uppermost surface of a drive chain for powering a plurality of rollers in a roller bed. The drive pad is connected to the chain by a plurality of fastening pins which have body portions and enlarged end caps connected to the body portions. The enlarged end caps have diameters greater than the body portions.

Abstract: A support for the guide rail of a conveyor which enables the guide rail to be adjusted among a plurality of pre-set positions in a quick and simple manner with precision. The guide rail is supported by a generally horizontal support post which is supported by a vertical stanchion on the frame of the conveyor alongside the conveyor belt. The post has a latch pin and is mounted for slidable axial movement in the stanchion and is axially biased to urge the latch pin toward the stanchion. The stop member comprises a hollow cylindrical member slidably and rotatably mounted on the post between the pin and the stanchion. The end of the stop member confronting the latch pin has a plurality of receptacles to receive the latch pin, the axial depth of the receptacles are different to provide different positions for the post and thereby the guide rail.

Abstract: A mounting device for coaxially anchoring a machine element upon a rotary shaft. The device fits between the interior bore of the machine element and the cylindrical surface of the shaft and is effective to position the element at any desired position longitudinally of the shaft and at any angular position circumferentially of the shaft. The device has inner and outer sleeves, the mating surfaces of which are similarly tapered so that relative axial displacement of the sleeves effects expansion and contraction of the interior bore and external surface of the combined elements. Rotation of a threaded nut at one end of the device effects the relative axial displacement of the inner and outer sleeves to afford expansion and contraction of the outer sleeve without straining the material of the sleeve or the nut.

Abstract: A conveyor belt comprising a series of belt links arranged in superimposed successive overlapping relation secured together by interlocking belt link fasteners and apertures, combined with heat protection barriers to protect the belt from contacting high temperature materials that are transported. The barriers interlock with the links of the belt forming a surface which contacts the high temperature materials.

Abstract: A plastic reservoir adapted for use with a hydraulic power pack. The reservoir includes a plastic body and a substantially plastic mounting ring which is joined to the plastic body of the reservoir. The mounting ring includes a metal reinforcing ring which is encapsulated in the plastic portion of the mounting ring.

Abstract: A mounting device for anchoring a machine element having a tapered bore coaxially upon a rotary shaft. The device fits between the interior tapered bore of the machine element and the cylindrical surface of the shaft and is effective to position the element at any desired position longitudinally of the shaft and at any angular position circumferentially of the shaft. The device has inner and outer segmented sleeves, the mating surfaces of which are similarly tapered so that relative axial displacement of the sleeves effects expansion and contraction of the interior bore and external surface of the combined elements. Rotation of an internally threaded nut at one end of the device effects the relative axial displacement of the inner and outer sleeves to afford expansion and contraction of the outer sleeve without straining the material of the sleeve or the nut.