| 摘要 |
1,220,540. Fish feeder. J. H. GOBY. 20 Nov., 1969, No. 56852/69. Addition to 1,216,912. Heading A1A. A fish feeder of the type described in the Specification 1,216,912 is modified in that the buoyancy means consists of an imperforate upper chamber 11 of the container. The food expeller is also modified, in that it consists of a weight 20 attached to a wire rod 19 which passes through a hole 17 in the lower container 12. The wire has vanes or loops 21, 22 attached to it and is retained in the container by bead 23. |
