Abstract:
Floatable cord for use especially as a head rope of a net, the interior of the cord comprising floating material (1) having a density lower than 1,0. The floating material (1) is manufactured of a thermoplastic, cross-linked or non-cross-linked plastics material, wherein empty spaces are provided for decreasing the density and which in the longitudinal direction of the cord forms a continuous core region of a constant cross-section, or a core region widening and narrowing in a wave-like fashion.
Abstract:
L'invention concerne un cordage flottant utilisé notamment comme cordage de tête d'un filet, l'intérieur dudit cordage comprenant une matière flottante (1) dont la densité est inférieure à 1,0. La matière flottante (1) est en matière plastique thermoplastique réticulée ou non réticulée, comportant des espaces vides pour diminuer la densité et formant dans le sens longitudinal du cordage une région centrale continue de section transversale constante, ou une région centrale s'élargissant et rétrécissant à la manière d'une vague.
Abstract:
A method for production of a sink line (1) with sinkers (3), e.g. for a fishing net, the sinking line (1) including a central longitudinal core yarn (2), the sinkers (3) enclosing the core yarn (2) in a concentric way and consisting of a weight material with a specific gravity greater than 1, the weight material consisting of a mixture of powdered mineral material and a binder in the form of a suitable plastic material, wherein the sinkers (3) are connected to the core yarn (2) by extrusion while the latter assumes a shortened condition, and where the sinkers (3) after extrusion and cooling have been divided into mutually separated, relatively short sinkers (3') which are still connected to the core yarn (2).