any one of various devices equipped with scooping or suction products and used to deepen harbors and waterways plus underwater mining.
Nautical A boat or barge built with a dredge.
An implement consisting of a net on a-frame, employed for gathering shellfish.
Any instrument regularly gather and take by dragging; as:
really fine mineral matter held in suspension system in liquid.
Any tool regularly gather and take by dragging; as: (a) A dragnet to take up oysters, etc., from their particular bedrooms. (b) A dredging machine. (c) An iron framework, with a superb internet attached, used in collecting pets residing at the bottom associated with the water.
really good mineral matter held in suspension system in water.
A mixture of oats and barley.
A bush-harrow; a large rake.
Any instrument for bringing-up or removing solid substances from under liquid by dragging from the base.
An apparatus for mentioning marine creatures, plants, as well as other items from the base for the sea for systematic research. It is made up principally of a-frame of metal and a net which can be connected to the framework. As generally built, the frame is transversely oblong, generally about three times as long as wide, with right stops and somewhat inclined sides, obtaining the external edges sharp to serve as scrapers. The web is usually consists of heavy twine, but often of iron chainwork, and it is attached to the frame by holes near the internal sides. Fastened to your framework tend to be iron handles, that a rope or metal string is attached.
a device for clearing the bedrooms of canals, rivers, harbors, etc. See dredging-machine.
In ore-dressing, in certain mining districts of The united kingdomt, ore that is intermediate in rich ness between “prill-ore”; and “halvans”; ore of second quality, almost intermixed with veinstone. Often written dradge.
Formerly, just like meslin; now, specifically, a combination of oats and barley sown collectively.
a power shovel to remove material from a channel or riverbed