Abstract:
The present disclosure provides a rope (35) having a braided sheath (398) that forms the coverbraid about a strength member core (37), said rope (35) being suitable for forming mesh in pelagic trawls, wherein at the outside of the braided sheath (398) a spiraling elongate element (36), e.g. a strand or an extruded elongate element, is provided, said spiraling elongate element (36) having a greater pitch in comparison to a pitch exhibited by other strands (397) forming the braided sheath (398). The rope (35) is stronger for a given amount of material, has lesser drag, is capable of exhibiting same or improved lift when subjected to water flow at trawl mesh angles of attack, while also being less costly to manufacture, in comparison to known helix rope constructions wherein the pitches are equal.
Abstract:
A trawl system having at least a trawl net and bridles and/or sweeplines, the trawl net having a trawl mouth opening; wings; a pliable footrope; a pliable headrope; and pliable sidelines, the bridles and/or sweeplines having a forward bridle point as well as having upper and lower bridles and/or sweeplines, the trawl system includes light sources illuminating space between the upper and lower bridles and/or sweeplines with visible light.
Abstract:
Methods are provided for forming spliced connections in coverbraided ropes in the form of a sling having at least one eye. The methods include the step of situating a void spacer adjacent to a portion of a core rope. The methods also include coverbraiding the removable void spacer to create a tunnel into which a section of the same coverbraided sheath enclosing a strength member core is able to be positioned in between the strength member core and the coverbraided sheath enclosing the strength member core in the vicinity of the spliced eye's splice braid zone, thereby forming a spliced eye connection.
Abstract:
The present disclosure provides a method for producing a rope (35) that is useful for forming mesh in pelagic trawls, that is stronger for a given amount of material, has lesser drag, is capable of exhibiting same or bettered lift when subjected to water flow at trawl mesh angles of attack, while also being less costly to manufacture, in comparison to known helix rope constructions. Most broadly the method and apparatus of the present disclosure include a standard braiding apparatus (11) where an additional planetary carrier apparatus orbits about the outside of the usual planetary carrier apparatus, at a same or similar height as the usual planetary carrier apparatus, at a lower speed than the usual planetary carrier apparatus, and preferably carrying less bobbins (19) than the usual planetary carrier apparatus.
Abstract:
Methods are provided for forming spliced connections in coverbraided ropes in the form of a sling having at least one eye. The methods include the step of situating a void spacer adjacent to a portion of a core rope. The methods also include coverbraiding the removable void spacer to create a tunnel into which a section of the same coverbraided sheath enclosing a strength member core is able to be positioned in between the strength member core and the coverbraided sheath enclosing the strength member core in the vicinity of the spliced eye's splice braid zone, thereby forming a spliced eye connection.
Abstract:
A rope has a braided sheath that includes a spiraling strand having a greater pitch in comparison with a pitch exhibited by other strands of a coverbraid that encloses that rope's strength member core. The rope is useful for forming pelagic trawl mesh, and is stronger for a given amount of material, has less drag, and exhibits the same or bettered lift when towed through water at trawl mesh angles of attack. The rope also is less costly to manufacture in comparison to known helix rope costructions.
Abstract:
The present disclosure provides a method for producing a rope (35) that is useful for forming mesh in pelagic trawls, that is stronger for a given amount of material, has lesser drag, is capable of exhibiting same or bettered lift when subjected to water flow at trawl mesh angles of attack, while also being less costly to manufacture, in comparison to known helix rope constructions. Most broadly the method and apparatus of the present disclosure include a standard braiding apparatus (11) where an additional planetary carrier apparatus orbits about the outside of the usual planetary carrier apparatus, at a same or similar height as the usual planetary carrier apparatus, at a lower speed than the usual planetary carrier apparatus, and preferably carrying less bobbins (19) than the usual planetary carrier apparatus.
Abstract:
From a first aspect, a method is provided for forming a helix rope for a trawl comprising the steps of: a) situating upon a portion of a rope a bead of a substance being selected from a group consisting of: (i) a liquid substance; and (ii) a semi-liquid substance. From a second aspect, a helix rope (35) is provided for forming portions of a pelagic trawl, the helix rope comprising a braided sheath (398) formed of greater than sixteen strands (397), whereby drag is reduced. From a third aspect, a method is provided for forming a high strength synthetic rope useful for towing warps, trawler warps, yachting ropes, mooring lines, anchoring lines, oil derrick anchoring lines, seismic lines, paravane lines, and any other uses for rope, cable or chain.
Abstract:
A rope has a braided sheath that includes a spiraling strand having a greater pitch in comparison with a pitch exhibited by other strands of a coverbraid that encloses that rope's strength member core. The rope is useful for forming pelagic trawl mesh, and is stronger for a given amount of material, has less drag, and exhibits the same or bettered lift when towed through water at trawl mesh angles of attack. The rope also is less costly to manufacture in comparison to known helix rope costructions.