Arrangement in general cargo ships having side port openings

Details Arrangement in general cargo ships having side port openings Arrangement in general cargo ships having side port openings

1991-01-07

1992-08-25

Sotelo, Jesus D.

Ships

Building

Freighters

212190, 4141415, B63B 2502

Patent

active

051409259

DESCRIPTION:

BRIEF SUMMARY
The present invention relates to an arrangement in ships, especially general cargo ships, equipped with side port openings for transporting freight inwardly into and outwardly from the ship.
In connection with the loading and unloading of ships via side port openings it is customary to handle the freight in several successive operations, for example by handling the freight with fork lift trucks on quays and with separate hoisting equipment for handling freight from quay to ship and in certain regions internally in the ship and with fork lift trucks or other transport arrangements in remaining regions internally in the ship. It is an appreciable problem that the freight must be put down between transfer from transport means to transport means and must be grasped and handled with various equipment and thereby the freight can be exposed to unnecessary damage during the transport transfer between ship and quay.
Accordingly, it is an object of the invention to be able to handle freight in one single continuous transport operation with one and the same transport system.
It is another object of the invention to move freight exclusively by way of rectilinear movements and in a precisely controlled manner with one and the same transport system from a quay directly into position in a ship or from a position in a ship directly into position on a quay.
In particular the objective is to be able to handle units of freight so that on loading, the freight can be put down at precisely established locations in the hold according to a set control program, or so that on unloading the freight can be fetched again from corresponding precisely established locations in the hold for unloading in a predetermined sequence directly into place at the unloading location.
The arrangement according to the invention is characterised in that the ship is equipped with an upper superstructure in a continuous length over a fore-and-aft row of upwardly opening holds, which have maximum hatch openings, for defining a common, shielding transport space which allows movement of a transport arrangement with freight fore-and-aft and tranversely a distance above the holds and via a locally defined side port opening or a small number of locally defined side port openings to and from the ship.
By means of superstructure there is the possibility of providing an effective transport system for serving the holds one after the other with one and the same set of transport means, for example via one and the same side port opening. Alternatively two or more sets of such transport means can be employed for serving their respective groups of holds via a number of side port openings adapted for this. By this there is the possibility of allowing the transport of freight to and from the ship to be carried out in a simple and effective manner internally in the ship, with effective protection agains weather and wind and with loading hatches to the different holds open to the maximum.
The arrangement is further characterised in that at the under side of the superstructure there is fastened a first set of a fore-and-aft transport rails for the support of a first fore-and-aft running transport means, that the first transport means is equipped with a second set of transverse transport rails for the support of the second transverse running transport means, which can be moved from a position within the superstructure to a position projecting partly outside the ship via associated side port openings, that the second transport means is equipped with a third set of transverse transport rails for the support of a third transport means, which can be moved from an inner position to an outer position on the second transport means and which is equipped with a hoist for lifting and lowering freight relative to the third transport means.
By means of the afore-mentioned transport system a simple, rectilinear movement of the freight can be ensured, controlled by the transport means and the hoist one after the other, for handling the freight in a gentle and accurate manner, determined

REFERENCES:
patent: 2988036 (1961-06-01), Mooneyhan et al.
patent: 4803940 (1989-02-01), Ebeling et al.

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