Abstract: A method of joining a non-metallic pipe to a metallic pipe. The pipe may be wrapped with one or more sheets of reinforcement material (e.g., pre-impregnated fiberglass, carbon fiber, or aramid fiber) and then fitted with an adapter or fitting that is connectable to a metallic pipe. The reinforcement material may be heated using a heating apparatus which allows the material to bond to the pipe to strengthen the joint.

Abstract: A method of joining segments of non-metallic pipe and an apparatus that may be used to form the joint. The pipes may be joined using by melting the ends to form a butt joint, then the joint may be wrapped with one or more sheets of reinforcement material (e.g., pre-impregnated fiberglass, carbon fiber, or aramid fiber). The reinforcement material may be heated using a heating apparatus which allows the material to bond to the pipes to strengthen the joint.

Abstract: A composite pipe and method of manufacture comprises an inner core coated with a resinous material, a prepreg material helically wound about the inner core and an outer shell covering the wound prepreg materials. The materials are applied at preselected melt temperatures to assure coherence among the materials and preclusion of voids and/or annuli therebetween. The melt temperature of the inner core is greater than the melt temperature of the coating and prepeg layers such that the heating needed to cohere these materials has no deleterious effect on the integrity of the inner pipe core. A cooling of the inner pipe core during initial application of the tape layer of prepreg materials stabilizes the radial configuration of the pipe core during tape wrapping and thus the appearance of undesirable voids and/or annuli in the composite pipe mass.

Abstract: A composite pipe and method of manufacture comprises an inner core made of a resinous material, a prepreg material helically wound about the inner core and an outer shell covering the wound prepreg materials. The materials are applied at preselected melt temperatures to assure coherence among the materials and preclusion of voids and/or annuli therebetween. A cooling of the inner pipe core during initial application of the tape layer of prepreg materials stabilizes the radial configuration of the pipe core during tape wrapping and thus the appearance of undesirable voids and/or annuli in the composite pipe mass.

Abstract: A trolley unit for a conveyor system comprises first and second releasably engageable trolley half sections. First and second shafts extend from one of said trolley sections and through the other trolley section to provide a pivot axis for an end of upstream and downstream trolley connecting cables. A third shaft provides a support bar for a load attachment hanger. Upon releasable attachment of the trolley halves an integral trolley unit with central housing houses the pivot shafts with the cables extending therefrom. The integral trolley unit is easily dismantled allowing for easy maintenance. A turn sheave includes a cable seat and plurality of trolley seats which inhibit inward deflection of the seated cables and trolleys when the trolleys are moving about a corner of the conveyor system as defined by a change in a horizontal direction of the support rail.