| 摘要 |
<p>A boom for use in the collection of oil slicks comprises a plurality of hingedly connected panels (10). Each of the panels (10) is formed as a plastic moulding having a groove (15, Fig 3) in its lower edge to receive a bar that acts as a counterbalance weight or ballast bar. Each of the panels (10) may also have grooves (14, Fig 4) in two opposed edges to receive rods (19, fig 7) that form parts of the hinge connections between the panels (10). Each of the panels (10) may also have a pair of spaced formations (16,Fig 2) in one of its edges to facilitate handling of the panels (10).</p> |
