a pretty are permanently closed, so that it is impossible to sink FLOATING DEPOSITING DOCK AND HYDRAULIC GRID ] constant water level. Its unusual form, and the man- DOCK. the dock. Each compartment has independent pipe ner of its working, will toe easily seen by referring to connection with the… … FLOATING DEPOSITING DOCK AND HYDRAULIC GRID DOCK. Fig. 2. Fig. 3. In our present notice we confine ourselves to a gene- The broad, shallow pontoon attached on the left of the means of gangways passing through the side of the ral description of this dock and the hydraulic grid. vertical side of the…
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