bucket-ladder dredge

bucket-ladder dredge

[′bək·ət ‚lad·ər ‚drej]
(mechanical engineering)
A dredge whose digging mechanism consists of a ladderlike truss on the periphery of which is attached an endless chain riding on sprocket wheels and carrying attached buckets. Also known as bucket ladder; bucket-line dredge; ladder-bucket dredge; ladder dredge.