DE2042850A1 - Floating dock - Google Patents

Description

Dr. F. Zumsteln sen. - Dr. E. Assmann Dr. R. Koenlgsberger - DlpL-Phye. R. Holzbauer - Dr. F. Zumsteln jun.

PATENT LAWYERS 2OA 28

β MUNICH 2, TELEPHONE: COLLECTIVE NO. 22 53 41 BRAUHAUSSTRASSE 4 / III

TELEX 529979

TELEGRAMS: ZUMPAT

CHECK ACCOUNT! MONKS 91139

BANK ACCOUNT:
BANK H. HOUSES

TO 45-55

Mitsui Shipbuilding & Engineering Co., Ltd · Tokyo / Japan

Floating dock

The invention relates to a floating dock.

A typical floating dock consists of a series of hollow parts, dLe each have a pontoon and side walls and are connected to one another to form a dock. The parts are firmly built and connected to each other so that they can absorb the tension forces that result from uneven Distribution of the weight of the ship and the buoyancy arise so that bending of the floating dock is avoided. The side walls are built to accommodate fixtures how cranes can pick up, and require one accordingly

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stronger construction. Therefore, the pontoon must have a great capacity and have adequate buoyancy to counterbalance the heavy weight of the sidewalls.

The floating dock according to the invention should be designed without side walls and thus be light and economical.

The floating dock according to the invention is characterized by that pontoons are connected to each other so that they allow movement in the vertical direction and movements in the lateral direction and limit the longitudinal direction, the buoyancy and inclination of each pontoon by changing the amount of ballast water can be regulated in watertight sub-rooms, and all pontoons are automatically controlled by centralized control the amount of ballast water of each pontoon can be controlled so that they are kept in the same plane.

In the following, for example, preferred embodiments of the invention are explained in more detail with reference to the accompanying drawings explained.

Fig. 1 shows a side view of an embodiment of the present invention;

Fig. 2 is a plan view corresponding to Fig. 1;

3 is a side view from the left side of FIG Fig. 1;

Fig. 4 is a side view of another embodiment the invention.

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1 to 3 are with 1 the water line, with 2 the seabed, with 3 the bottom, with 4 the pontoons, with 5 the watertight longitudinal bulkheads in the pontoon, with 6 the watertight transverse bulkheads in the pontoon, with 7 connecting parts and denoted by 8 stakes driven into the ground and passing through the pontoons, being one Allow vertical movement of the pontoons. With 9 there are stabilization tanks which hold the pontoon in a fixed position when it is submerged. The reference number 10 denotes Girders attached to beams 14 carried by piles 8 and 12. Between the straps a path 11 is formed. A gantry crane 13 runs on the girders 10. At 15 there is a ship in the dock designated. The reference number 16 refers to a ship moored at the pier. Each pontoon is equipped with pumps, watertight Compartments divided by watertight bulkheads 5 and 6, as well as pipes and valves, which are used to fill and drain the water in and out of each watertight compartment. In this way the swimming ability can and the inclination of each pontoon can be adjusted by varying the amount of water taken in or out. The pontoons are interconnected by connecting devices 7 so that movements in the longitudinal and lateral directions can be suppressed, but the movement in the vertical direction is made possible by hinge joints 7a. When there is a pontoon tends, the buoyancy of the tank 9, which is immersed deeper down, increases and becomes accordingly the pontoon returned to the horizontal position.

When a ship is docked, each pontoon is submerged by pouring water into the watertight compartments, the ship is brought into the area above the submerged pontoons and then the pontoons are pumped out and raised so that they support the ship on blocks provided on the pontoons. The weight

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Distribution in the longitudinal direction of the ship is uneven, i.e. the engine room is heavy. Furthermore, the longitudinal distribution the buoyancy of the ship when the Pontoons are unevenly distributed, as any horizontal cross-sectional shape of the bow area is not that of the stern area is equal to. If the emptying of all pontoons is carried out uniformly, the pontoons will be under the light one Part of the ship, and under the part of the ship where the buoyancy decreases with slower speed than other areas, raised quickly. The pontoons

w under the heavy area and under the areas whose buoyancy decreases at higher speeds are slowly raised. As a result, the ship is subjected to great tension due to the uneven raising of the pontoons. The ship's bottom is formed in the shape of a straight line in the longitudinal direction. In the floating dock according to the invention, all pontoons are controlled so that they remain in the same plane in which the pumping in and out is controlled, so that no tension is generated in the ship. It is also possible to automatically control the pumping and emptying processes of a pontoon by setting one pontoon as a yardstick for the others. All pontoons

fe can also be controlled automatically in such a way that their Inclination caused by uneven loading is set.

To prevent the horizontal movement of the pontoons, the piles 8 are passed through the pontoons. This is not necessary the need to anchor or moor the floating dock. The pier is provided on one side of the floating dock, on which the gantry crane] 3 and Las! vehicles move can be. On the other side of the pier, the ship 16 can be moored to the JUp.iratur. The gantry crane can be used for use in repairs.

In the embodiment shown in Fig. A, lifting

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Devices 17 are provided on each post 8 and by rods 18 connected to each pontoon 4. The lifting device has an upper and lower holding device, the corresponding can be jammed with the pile and a hydraulic cylinder mechanism is provided between the devices. An alternative clamping of the upper holding device and the lower holding device and an expansion of the hydraulic cylinder mechanism cause the two Move holding devices up or down. That

leads to a raising or lowering of the pontoon, instead of g

these lifting devices can be winches for lifting the pontoon on top of each pile. To lower of the pontoon in clamping conditions, every pontoon becomes with water in an amount greater than the buoyancy of the pontoon

is filled so that it sinks completely when the lifting device is operated to lower the pontoon. In this way, the pontoons can be lowered in a stable manner. When the pontoons support the ship, the lifting devices are released so that the pontoons can move up and down according to the tide change. When working on the bottom of the pontoon, such as repairs, painting and the like, the pontoon is raised above the water level so that the work boat and the workers i can get under the pontoon.

In the manner described above, according to the present invention, a novel floating dock is provided which is light in weight and created without side walls.

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Claims (1)

20A2850 Claim Floating dock, characterized by a number of pontoons (4), each having watertight compartments, by a connecting device (7), which are adjacent to one another. Pontoons (4) connects so that a vertical movement is enabled and longitudinal and Cuerb movement of the pontoons is suppressed, and by means of pumping and draining
V / ater in each of the watertight compartments. 109813/1142 Blank page