Tank fish feeding unit - has trough for dry food contg. periodically driven dispensing worm and shaker actuated by worm to prevent bridging

摘要

The metering unit is intended for periodically feeding dry granular material to fish in a tank. It comprises a trough-shaped receptacle (1) contg. a horizontal transport worm (6) in its lower end leading to an outlet opening (7). The worm is periodically driven and a shaker in the trough is actuated by the worm via a projection (16) on the rod to prevent bridging of the material. - The shaker rod pref. extends parallel to and above the worm and has one upward end held at one side wall (10) by a covered pivot (17). The other end is pivotably coupled (19) to the spring (22) at the opposite side wall (24).(1/2)