Abstract: Antiabrasion curved section made of reinforced curved plastic material and comprising in at least one of a lower portion and an upper portion an antiabrasion material. A plurality of antiabrasion sections are produced inside a profiled mold having a plurality of grooves in which is arranged the antiabrasion material of the lower faces. Reinforced filaments impregnated with a stabilizable resin are supplied to the mold and, finally, the antiabrasion material of the upper faces is applied. The mold is wound on a mandrel and the plastic material is stabilized before removing the mold sections which form a unitary assembly dividable particularly during the stranding of arm rings.

Abstract: An apparatus for the sizing of a shaped extended element having a longitudinal axis and including lateral surfaces extending substantially parallel to the axis. The apparatus includes a wheel rotatable about an axis. The wheel includes at least one planar ring-shaped surface extending perpendicular to the axis of the wheel and centered on the surface. The ring-shaped surface cooperates with the lateral surface of the shaped elongated element during a displacement of the wheel relative to the element along an axis parallel to the longitudinal axis of the element. A coating device is adapted to deposit, at least on the outer circumference of the wheel a sufficient amount of glue for allowing a sizing of the lateral surface of the shaped element.

Abstract: Antiabrasion curved section made of reinforced curved plastic material and comprising in at least one of a lower portion and an upper portion in antiabrasion material. A plurality of antiabrasion sections are produced inside a profiled mold having a plurality of grooves in which is arranged the antiabrasion material of the lower faces. Reinforced filaments impregnated with a stabilizable resin are supplied to the mold and, finally, the antiabrasion material of the upper faces is applied. The mold is wound on a mandrel and the plastic material is stabilized before removing the mold sections which form a unitary assembly dividable particulary during the stranding of arm rings.

Abstract: A method and apparatus for the sizing of a shaped extended element having a longitudinal axis and including lateral surfaces extending substantially parallel to axis. The apparatus includes a wheel rotatable about an axis and with the wheel including at least one planar ring-shaped surface extending perpendicular to the axis of the wheel and centered on the surface. The ring-shaped surface is adapted to cooperate with the lateral surface of the shaped elongated element during a displacement of the wheel relative to the element along an axis parallel to the longitudinal axis of the element. A coating means is adapted to deposit, at least on the outer circumference of the wheel a sufficient amount of glue for allowing a sizing of the lateral surface of the shaped element.