Arrangement for trawl nets composed of a plurality of sheer devices

摘要

360,808. Trawling - gear. OTTERMANN, W., 35, Durchschnitt Cuxhaven, Germany. May 15, 1931, No. 14433. Convention date, May 16, 1930. [Class 48.] Shear devices a comprise curved lateral deflectors ban downward deflectors c which can be varied in height and position. The deflectors b are detachably screwed to the top and bottom horizontal supports. A device m with curved upward deflectors lifts the centre of the net mouth.