Abstract: Wing pulleys that engage a conveyor belt during conveying operations are described. The wing pulley includes a central reinforcing disk that strengthens and stabilizes the pulley.

Abstract: A system for controlling a medical device includes a shaft rotatable about a longitudinal axis and a plurality of arms extending radially outwards from the shaft. Each arm includes an inward end positioned near the shaft and an outward end. The system also includes a collapsible pulley formed from a plurality of pulley pieces. At least one of the pulley pieces is slidably mounted on at least one of the plurality of arms and has a surface configured to receive at least one control element. The system further includes at least one biasing member located between the shaft and the at least one slidably-mounted pulley piece.

Abstract: Wing pulleys that engage a conveyor belt during conveying operations are described. The wing pulley includes a central reinforcing disk that strengthens and stabilizes the pulley.

Abstract: A wing pulley has a support that acts as a fixture to assist in locating the wings of the wing pulley and the spacers of the wing pulley during manufacture of the pulley. Methods of constructing the wing pulley are also disclosed.

Abstract: A resin pulley includes an outer cylindrical portion including an outer circumferential surface on which a belt is to be wound, an inner cylindrical portion, and a plurality of ribs connecting an inner circumferential surface of the outer cylindrical portion and an outer circumferential surface of the inner cylindrical portion, which are formed of a resin material. The ribs are provided so as to be inclined towards a circumferential direction relative to a radial imaginary line as viewed in an axial direction. Radially outer end portions of the ribs are formed such that inclination angles of the respective radially outer end portions relative to the radial imaginary line increase as the ribs extend radially outward, and radially inner end portions of the ribs are formed such that inclination angles of the respective radially inner end portions relative to the radial imaginary line increase as the ribs extend radially inward.

Abstract: An idler having an axis of rotation. The idler may include a hub with a flange. A plurality of rim members are positioned along a perimeter of the flange and have generally axially facing, opposite side surfaces. At least one of the side surfaces has a first interlocking formation. A clamping plate is connected to the flange. The clamping plate has a second interlocking formation coupled with the first interlocking formation. A dampening member interposes the first and second interlocking formations.

Abstract: The present invention relates to a replaceable pulley lagging for attachment to wing pulleys and includes a backing member having a shape which conforms to the contact bars of each of the wings of the wing pulley. These backing members have an adhesive and an elastomeric member vulcanized thereto along the length thereof for contacting an endless conveyor belt disposed around a wing pulley. The replaceable pulley lagging devices can be slid onto or off from the contact bars of the wing pulley. A method of forming these replaceable pulley lagging devices includes using an apparatus to push the backing member against an elastomeric substance in a mold and hold the backing member and elastomeric substance in the formed position until it can be vulcanized in an autoclave or the like.

Abstract: The present invention relates to a replaceable pulley lagging for attachment to wing pulleys and includes a backing member having a shape which conforms to the contact bars of each of the wings of the wing pulley. These backing members have an adhesive and an elastomeric member vulcanized thereto along the length thereof for contacting an endless conveyor belt disposed around a wing pulley. The replaceable pulley lagging devices can be slid onto or off from the contact bars of the wing pulley. A method of forming these replaceable pulley lagging devices includes using an apparatus to push the backing member against an elastomeric substance in a mold and hold the backing member and elastomeric substance in the formed position until it can be vulcanized in an autoclave or the like.

Abstract: The present invention relates to a replaceable pulley lagging for attachment to wing pulleys and includes a backing member having a shape which conforms to the contact bars of each of the wings of the wing pulley. These backing members have an adhesive and an elastomeric member vulcanized thereto along the length thereof for contacting an endless conveyor belt disposed around a wing pulley. The replaceable pulley lagging devices can be slid onto or off from the contact bars of the wing pulley. A method of forming these replaceable pulley lagging devices includes using an apparatus to push the backing member against an elastomeric substance in a mold and hold the backing member and elastomeric substance in the formed position until it can be vulcanized in an autoclave or the like.

Abstract: A method of making a wing pulley using a plurality of substantially identical building block segments. These building block segments are generally U-shaped with a tapering configuration from one end to the other. A predetermined number of the building block segments are welded together to form a first rigid annular subassembly and a second identical number of predetermined building block segments are also welded together to form a second rigid annular subassembly. A hub is attached to the outer end of each of the rigid annular subassemblies so that bushings or other attachments can be made for rotatably mounting the wing pulley in a conventional manner.

Abstract: This invention relates to a replaceable repair device for use to repair the outer terminal edge of a flat spoke of a wing pulley wheel, in general, and more specifically: to a cross-sectionally T-shaped elongated repair device having a top cross-bar, and a lower parallel pair of spaced apart downwardly extending flat legs secured to the cross-bar underside and with the legs adapted for overlapping abutment relation with and secured to the outer surface sides of a flat spoke adjacent the spoke terminal edge, and to the cross-bar of the T-device a metal base plate, having a rubber strip vulcanized thereon, with the metal base plate replaceably tack-welded at interval spots to the cross-bar of the T unit, and by the interval tack-weld spots thereby to avoid welding heat loosening the rubber vulcanization on its metal base plate.

Abstract: A lagging segment having a leading edge in the form of tabs and recesses and a trailing edge in the form of tabs and recesses whereby adjacent segments can be welded to the face of a pulley without damaging elastomer by placing adjacent segments around the face of a pulley with the tabs of the leading edge positioned within the recesses of the trailing edge of adjacent segments and spaced with an air space between the tabs and recesses of adjacent segments such that welds at the ends of the tabs are separated by a heat insulating air space from the recess of the adjacent segment, whereby the spacing between the elastomer portions of adjacent segments is diminished.

Abstract: This invention relates to replaceable rubber laggings for either drum or wing pulleys in general, and more specifically to a universal lagging structure which due to its design and dimensions can be manufactured in one size, has a mounting support structure which allows it to be easily installed on either type pulley, and when installed on a drum pulley the individual laggings are spaced a distance of .pi./2 units of length around the circumference of the drum and the number of laggings employed on a given size drum equals the number of units of length in the diameter of the drum, with each lagging being .pi./2 units in width.

Abstract: A lagging face for a drum-type pulley comprising a plurality of separate segments having an inner rigid shell conforming to the surface of the pulley. A facing is bonded to the outer surface of the shell and the shell is welded to the drum. The shell overhangs the edges of the pulley to provide surface for welding and is selected having a diameter and an inner arcuate dimension slightly less than that of the drum to which it is to be applied to insure a tight fit. Another aspect of the present invention provides a method for truing a crown drum comprising placing truing rings over the existing drum prior to relagging.

Abstract: An improved drag chain sprocket comprising two spaced-apart discs on a hub with removable teeth bolted to the discs. The open design of the sprocket prevents build-up of abrasive materials between the sprocket and the chain. The mounting position of the teeth may be altered to utilize unworn surfaces, thereby extending the working life of the sprocket.

Abstract: Replaceable pulley lagging--for an initially smooth-faced, endless conveyor or elevator belt drive pulley--comprising a multiplicity of relatively narrow, transversely extending traction pads pre-formed to mate with the arcuate pulley face, and applied edge to edge in a circumferential array and number to substantially fully embrace the face of the pulley; the traction pads being secured to the face of the pulley in detachable relation whereby to permit removal and replacement of said pads when worn or damaged.