Improvements in ferry docks, locks and like sea and water-way installations open to tidal water

摘要

652,750. Docks &c. ENTREPRISE FOUGEROLLE & ENTREPRISE FOUGEROLLE POUR TRAVAUX PUBLICS. Jan. 30, 1948, No. 2810. Convention date, Dec. 31, 1947. [Class 68 (ii)] A ferry dock, lock or like sea or water way installation open to tidal water, is provided at suitable levels alongside or in its vicinity with reservoirs A, B which are fitted with sluices and which are filled by the water at high tide, and is also provided with a small power auxiliary pumping installation (not shown), which reservoirs, when necessary, supply water to the water way to approximately high water level, or other operative level 1 desired. As shown, the reservoirs A, B, which may be partitioned, are in the form of recessed caissons built into the two side walls of the waterway, the lower reservoir B containing gravel and sand ballast 4 covered by slabs 3.