Dredger with transport basin having loading and unloading mechanism
AssigneeOy Wartsila Ab
InventorAntero Mustonen
Life of this patent
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Abstract
A dredger comprising a floating hull supported on floatable means, for instance on pontoons or the like, a transport basin movably supported at said hull for the reception of a mass lifted from the bottom and means for said movable support, said transport basin including a mainly open front portion and a rear portion, and means for the transfer of the mass from a dredged area into the transport basin. Said transport basin is operated by hoist devices so that at least said front portion of the basin is descendable down to the bottom for said mass reception and hoistable up to a transport position or to a position above said transport position, and said mass transfer means comprise a digger plate or the like, which is movable by means of powered members relative to and within said basin.
Claims18
A dredger comprising a hull structure, flotation means for supporting the hull structure at the surface of a body of water, an elongate transport basin for receiving material lifted from the bottom of the water body and being open at the top and at at least one end, means supporting the transport basin movably with respect to the hull structure so that at least said one end of the transport basin can be lowered to the bottom of the water body for receiving material from a dredged area and can be raised up to a transport position in which the dredger can be moved to a discharge location for discharging material from the transport basin, a digger plate, a power transmission member mounted on the hull structure and connected to the digger plate, and power means connected to the power transmission member for moving the digger plate within the basin in one direction for drawing material from the dredged area into the transport basin by way of the open end thereof when the transport basin is in its lowered position, and for moving the digger plate in the opposite direction to push material from the transport basin by way of said open end for unloading the dredger.
A dredger according to claim 15, wherein the power transmission member comprises at least one longitudinally extendable elongate arm having two opposite ends, said arm extending longitudinally of and above the transport basin and being movably attached to the hull structure, and the digger plate being secured to the arm at that end thereof which is towards the open end of the transport basin.
Dependencies are inferred from the claim text.