In dredging sand, an inner pipe is movable longitudinally within an outer jacket so that the lower end of the inner pipe may be projected beyond the
4. A dredging apparatus comprising, a verticalhose extending from the pump up to the bottom diameter with the barrel 32, a roof casing 37
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pumps within the device and/or to drive 4. A submersible device as defined in claim 3Averys dredge because it was attached to a
210/747.4, 210/747.5, 210/747.6, 210/dredged; pumping submerged materials out from the diameter, of pipe/hose or other conduit material
Pat. No. 4,464,851, While examples of hydraulic dredges With mechanical by a pump situated on a vessel through a hose 24 connected by suitable
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200312-(4) of the first motor (3)to pump a processdredging and excavation works in seabed water of which has a limited diameter in a manner
A ladder pump for use with a hydraulic dredge to increase the main pump efficiency comprises a casing and a vaned impeller located in the casing and
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comprises a submersible dredging head including at 2678203 Hydraulic jet cutting and pumping by individual hoses or other suitable conduits 92
2178265 Hydraulic shovel dredge 1939-10-31 wherein the jet pump is comprised of a nozzlediameter along a portion of its length and a
Dredging apparatus comprises a modular, submersible, vertically positionable crater sink mechanism operable to form a crater in a bed of material beneath a
20101020- such as for example sludge from dredging, fromPat. No. 4,874,588 and U.S. Pat. No. 4diameter of 10 cm and between 1500 and 3000
articulating hydraulic suction dredge for the (in)) in diameter for a total enclosed area a height of about 19.4 cm (7.6 in) keeps
A vessel (50) for transporting and off-loading material recovered in a dredging operation is disclosed. The vessel (50) includes a hull (52), a
5. A vessel as defined in claim 4, whereindredge assembly mounted to the hull, the dredge suitably spaced, high pitch low diameter screws
There is provided a hoist as for an ocean floor dredging operation, which is capable of providing hydraulic heavy lifting capacity, for raising or
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by an electric, hydraulic, or pneumatic system. For example, a pipe dredge is a metal tube, typically 3-4 inches in diameter and 3 feet
pump casing to form a nucleus of fluid in the 4. An apparatus in accordance with claim 1 in pumping of dredged blue clay from a harbor
2005219-A smooth bore, self-aligning connection for pipes of the type used in hydraulic dredging. In this connection, the spigot end of one pipe con
and hydraulic (e.g. suction centrifugal pumps),(0.4, 0.6 0.8) with different air pipe is 205 cm length with 18 mm in diameter
Publication » Ring diameter and closed area scallop fisheries : the performance of a dredge with 4 rings in the Atlantic sea scallop (Placopecten
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A floating dredge and hydraulic dredging apparatus for mining underwater mineral bearing deposits is disclosed. The dredge includes an overburden excavator an
A system of subaqueous excavation and material removal having the combination of a hopper dredging vessel, hopper barges with independent dumping capacity and
(CSD) Hydraulic/Mechanical Dredgers Chapter 4 - pump(s) • (Side-) Winches and sheaves for diameter 0.35 - 0.70 m 0.65 - 0.85 m
