dipper dredge

dipper dredge

[′dip·ər ‚drej]
(mechanical engineering)
A power shovel resembling a grab crane mounted on a flat-bottom boat for dredging under water. Also known as dipper shovel.
References in periodicals archive ?
46) One of the more successful dipper dredges was that owned by the Star Mining Company, a group of Strathcona business men, averaged $50 a day.