STRUCTURAL MEMBERS OF TRAWL SYSTEM, METHOD OF MANUFACTURE OF SUCH SYSTEMS AND TRAWL NET Russian patent published in 2002 - IPC

FIELD: catching sea organisms at sea. SUBSTANCE: trawl net mesh is made in such way that its opposite sides have common direction of twisting when viewed in axial reverse direction (right-hand or left-hand twisting) which is opposite to direction of twisting. Such meshes improved forming and operational characteristics of trawl whose meshes have different geometric form wings of travel section may be so adjusted that they act as several min-wings working is alignment during operation. Aligned action provides for forming vectors of forces directed outside, thus considerably increasing trawl volume and consequently volume of travel mouth at simultaneous reduction of drag. EFFECT: reduced efficiency. 64 cl, 75 dwg