METHOD AND DEVICE FOR PASSAGE OF FISH THROUGH RETAINING STRUCTURE Russian patent published in 1995 - IPC

FIELD: water-development works. SUBSTANCE: in opening the gates of supply unit by different amount, non-uniform distribution of flow velocities is achieved in width of fish accumulating chute 1 at simultaneous drawing different kinds of fish of different floating capacity into independent fish accumulators 3. Selective accumulation of fish is effected in independent fish accumulators and after receiving elements 18 and transmitting elements 17 of the fish counting device indicate maximum accumulation of fish in independent fish accumulator 3, separate transfer of accumulated fish to head race of the hydroengineering complex is effected by means of excavator bucket 7 irrespective of accumulation of fish in other independent fish accumulators. EFFECT: enhanced reliability. 3 cl, 14 dwg