Improvements in the method of retaining flap gates and caissons for closing the entrances and divisions of dry and wet docks

摘要

405,360. Sluice - gates. BOX, E., L'indisfarne, Stoneyhurst Road, South Gosforth, Northumberland. Aug. 23, 1932, No. 23550. [Class 68 (ii).] In a modification of the invention described in Specification 351,777, the shoring frames s are fitted so as to abut on the rear side of the gate g, that is, on the side away from the direction in which the gate falls.