Athferth og vél til stærtharflokkunar beta lifandi fiski og seithum sm betaum og stærri og öthru efni er hentar thykktarflokkun

摘要

The present invention relates to an apparatus for grading live fish and the like. It comprises an in-feed device capable of feeding a maximum number of fish into a grading box which revolves. As it revolves, a slot opens in the bottom. The slot grows progressively broader during the revolution, or half revolution if there are two in-feed positions. Successively bigger fish will pass the slot into bins for different size fish.