SU137726A1 - Trawl for fishing - Google Patents

Description

Trawls for fishing in the water column and at the bottom are known, having a net part with wings, cut out from two symmetrical halves of the lower and upper pick, a cable, a duct in the form of a two-sided bag and a wire with spacers (trawl boards). However, the vertical and horizontal opening of these trawls is insufficient.

A distinctive feature of the described trawl is that its wings have trapezoidal cuts and are equipped with additional cables, which are passed through the net part, the cut of which along the landing edges is made along the straight or along the mating lines. Trawl is equipped with four or more selections, landing networks on which provides an incomplete disclosure of whose.

In addition, the two-bag bag is equipped with cross-sectional slings.

Such a trawl design increases its vertical and horizontal opening, and also simplifies manufacture.

FIG. 1 schematically shows a trawl, general view; in fig. 2 is a scheme for raising the catch in a narrow two-bottom trawl lodging room.

To the bottom of the net part 1, made in the form of a cone with wings .2, is fastened a knock 3, which is a narrow two-way crib, equipped with a series of transverse section slings 4, located every 1.5-2 m in length, which prevent it is stretched and allowed to divide the catch on the deck after the trawl is raised.

Three cables 5, 6 and 7 are attached to each wing, the middle of which passes through the net part of the trawl.

In the upper and lower wings, when a network is cut, trapezoid cuts are made, which ensures that a significant load is transferred to the middle cable in the form of net part / trawl resistance and its selection.

Upper swimmer picks are equipped with cuffs 8 or hydrodynamic floats, and bottom picks are loaded with chains 9 or soil no. 137726-2 -

trails with bobintsami. Three cables 5, 6 to 7 are connected to warps 10 via spacers // (trawl doors), providing horizontal design opening of the trawl, and transition ends 12.

The landing of the nets along the lateral wings of the wings and the cutting of the wings were performed with incomplete disclosure of their wings, which reduces the force of the wing during trawling.

The cut of the net part along the landing edges is made along the straight line or along the interface line so that all the threads that carry the load in the form of dragging the trawl in the water at any opening.

Subject invention

Claims (3)

1. A trawl for fishing in the water column and at the bottom, consisting of a symmetrical net part with wings, lower and upper picks, cables, a two-way bag, trawl boards and warps, characterized in that in order to increase the vertical and horizontal the trawl openings and simplification of its manufacture, the upper and lower wings netting has trapezoidal cuts, and the wings themselves are provided with each additional cable that passes through the net part, the cut of which along the landing edges is made along the straight or through interfacing. 2.Tral according to claim 1, differing from the fact that, in order to reduce during pulling effort, four are made in the trawl, or more selection, landing on which networks provides an incomplete disclosure of whose. 3. Trawl on PP. 1 and 2, characterized in that, in order to protect the double-sided bag from stretching, the bag is equipped with a series of cross-sectional slings arranged every J, 6-2 meters. I 5 1 in f 3