Process of making a conveyor belt
AssigneeThe B. F. Goodrich Company
InventorsRichard E. Eroskey, Winthrop S. Worcester
Life of this patent
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Abstract
An apparatus and method for producing a conveyor belt made of urethane having reinforcement embedded therein which reinforcement permits the stretching of the belt under controlled conditions. The reinforcement consists of a fabric or a plurality of aligned strands that are embedded in the urethane body of the belt proper that allow for a controlled stretch in the conveyor belt until such fabric or cords limit the stretching of such belt.
Claims9
A method of making a reinforced conveyor belt comprising the steps of feeding a single ply fabric in a longitudinal direction wherein said fabric has a plurality of warp cords disposed in a non-linear path that is parallel to said longitudinal direction, pouring a quick setting liquid polyurethane onto a moving carrier member, embedding said fabric into said liquid polyurethane along the mid center thereof, curing said liquid polyurethane to form a polyurethane with said fabric embedded along the mid center thereof to provide a limited stretch to said polyurethane belt as limited by said warp codes of said fabric in said belt.
A method of making a reinforced polyurethane conveyor belt comprising the steps of directing a plurality of parallel cords in laterally spaced alignment along a horizontal plane in a longitudinal direction, imparting a non-linear wavy configuration in a horizontal plane to said cords as said cords are delivered to a moving belt forming mold, embedding said cords in said non-linear configuration along a horizontal plane in a gelling liquid polyurethane body that is delivered to said moving mold, and curing said polyurethane body with said cords embedded therein in said non-linear wavy configuration that lie in a single horizontal plane that lies along the central mid plane of said belt as said belt is discharged from said moving belt mold.
A method of making a reinforced conveyor belt comprising the steps of directing a plurality of laterally spaced cords in a longitudinal direction, feeding a carrier member with side portions in said longitudinal direction, imparting a serpentine configuration to said cords while feeding in said longitudinal direction, pouring a quick setting polyurethane onto said carrier member while embedding said cords therein along a horizontal plane, and curing said polyurethane while embedding said cords therein with said serpentine configuration and with said cords lying in said horizontal plane.
Dependencies are inferred from the claim text.