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JP03132507 |
PURPOSE: To settle the marina shortage to promote the ocean leisure by constructing a marina of an artificial pond to the land in the rear of a fishing port or an inlet, etc. and, at the same time, providing a lift between the sea and ar...
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JP03103525 |
PURPOSE: To greatly save the water consumption by providing air-chambers capable of expansion to the lower parts of a plurality of lock rooms provided between lower stage and upper stage waterways, and connecting the air- chambers each o...
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JP03039514 |
PURPOSE: To make easy installation of a lift device practicable by installing a downstream-side lock to the side of the lower part of a lift tower adjacent to a low water area and an upstream-side lock to the side of the upper part of th...
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JP01137010 |
PURPOSE: To lift up a boat easily, safely, and horizontally by using a boat lifter consisting of H-shaped (planar view) beams rotatably supported and hanging tools rotatably hung down from both sides of the beam. CONSTITUTION: A boat lif...
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JP01097714 |
PURPOSE: To simplify operations by a method in which a netting material with weights is used as a gate, and the gate is opened by rolling downwards a support cable to support the netting material. CONSTITUTION: A gate to be provided to a...
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JP01071913 |
PURPOSE: To permit the level of water to be adjusted in a short time by a method in which a bag to be expanded or contracted by supply or discharge or air is provided on the river bed of a lock chamber, and when a ship is closed in the l...
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JP63156109 |
PURPOSE: To need no regulation of the weight of floating bodies and simplify composition and enable a vessel to be vertically moved in a stable state, by setting struts fitted firmly and erected on the floating bodies, to be bearing memb...
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JP60056697 |
PURPOSE: To make a marine floating body unloadable in an easy manner, by installing a propeller device and a suction device capable of being attracted to the floating body, in a bogie truck for unloading. CONSTITUTION: A propeller device...
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JP60056696 |
PURPOSE: To make a marine floating body unloadable in an easy manner, by attaching a propeller device in the underwater to a bogie truck being free of sinking or floating and having a suction device capable of being attracted to a bottom...
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JP60012392 |
PURPOSE: To eliminate any necessity for water-tightness and air-tightness further enable sinking and floating operation to be perfectly controlled in a short time, by liftably arranging only a ship body supporting bed for a buoyant unit....
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JP59038409 |
PURPOSE: To easily assemble a floor slab, weir pillars, connecting beams, and weir walls, each being made of precast concrete, on site. CONSTITUTION: A sluice consists of a floor slab 1, paired weir pillars 2, connecting beams 3, and ret...
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JP58105894 |
PURPOSE: To miniaturize in size a float crane and contrive to save cost, by a method wherein a constructed ship is launched by suspending it by both a float crane and a dock-side crane. CONSTITUTION: At a position proximate to a gate doo...
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JP55083678 |
PURPOSE: To provide a floating body having a ballast tank which is normally used as a floating pier, and in a case of using it as a shipsway for bringing a ship ashore, form an inclined slip by filling water into the ballast tank located...
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JP55052419 |
PURPOSE: To reduce the number of operating personnel and provide an incline device operated stably by radio transmitter and its receiver. CONSTITUTION: Rails 2 are laid on an oblique surface, a truck 1 is suspended over the rails 2 by th...
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JP54065999 |
PURPOSE: To provide a slipway which facilitates the operation of pulling the hull to the ground from the water and vice versa with a simple equipment without any underwater foundation work simply by installing a float. CONSTITUTION: A fl...
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JP52036056 |
PURPOSE: To render possible a precise automatic determination and a maintenance by comparing a previously set dange level, an increment of water level and a measured value.
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JP52016767 |
PURPOSE: Fork lift mechanism to lift load lower than ground level.
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