Improvements in multipurpose dragging doors for the handling of fishing networks. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in polyvalent trawl doors for the manipulation of fishing nets, characterized in that they are suitable for bottom, semi-pelagic and pelagic fishing, adopting forms with which a reduction in the absorption of power is obtained, comprising a system to maintain the door in vertical position and a system to regulate the buoyancy, as well as means for the hooking of the traction cable from the boat and means for the hooking of the cables of the networks. (Machine-translation by Google Translate, not legally binding)