FIELD: agriculture; industrial fishing, device for trawl mouth horizontal opening.
SUBSTANCE: trawl board has two interconnected trapezoidal profiled bearing shields, equipped with stringers, slats, ballast, devices for fixing cables and warp. Bearing shields are installed with possibility of rotation around one axis. Each shield is equipped with middle stringer mounted at an angle with shield. Stringers have opposed pockets where elastic elements limiting the angle of rotation of shields are installed. Middle stringers are equipped with flaps.
EFFECT: increased trawl board operation efficiency.
10 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| OTTER TRAWL BOARD | 2004 |
|
RU2267271C1 |
| OTTER BOARD | 2000 |
|
RU2172584C1 |
| TRAWL TOGGLE | 2010 |
|
RU2432739C1 |
| TRAWL BOARD | 0 |
|
SU1741701A1 |
| STRUT TRAWL BOARD | 0 |
|
SU1117028A1 |
| WING-SHAPED TRAWLER'S BOARD | 2001 |
|
RU2194388C1 |
| SPREAD BOARD FOR TRAWL | 0 |
|
SU1697662A1 |
| TRAWL BEAM | 0 |
|
SU1414372A1 |
| OTTER | 0 |
|
SU1768097A1 |
