| 摘要 |
A device for cargo hold cleaning, intended to be placed over a bilge well manhole, comprises a sieve member surrounding an axis, and securing means disposed beyond the end, in an axial sense, of the sieve member, the securing means being operable from its side which is nearer to the sieve member. The securing means may, among other forms, comprise one or more clamps or clips; or may be dimensioned to fit through the manhole and be tightened against the decking adjacent the underside thereof; or may comprise fixed arms above the manhole cooperating with retractable arms below the manhole. |
