1902 XXVII. 530/2 Where it is necessary to finish off the dredging work to a uniform flat bottom..bucket dredgers are better adapted.
1909 5 Nov. 7/3 A twin-screw, self-propelling bucket dredger.
1930 15 Aug. 195/3 The bucket dredger is the only type which has been uniformly successful from the time of its introduction.