Ships – Mother ship – floating landing platform – and harbor – Vessel carrier
Patent
1997-04-15
1999-01-26
Sotelo, Jesus D.
Ships
Mother ship, floating landing platform, and harbor
Vessel carrier
114 61, B63B 3540
Patent
active
058627707
DESCRIPTION:
BRIEF SUMMARY
The present invention is related to a sea-based transportation and load handling system, according to the preamble of the claims.
Sea transport of large load volumes, especially long distance transportations, have substantial advantages above other transportation possibilities. Within bulk, general cargo and tank transportation many and large efforts have been made to minimize the harbour time for the ships during loading and unloading. The capacity of the different harbours also to a high extent decide the harbour time for the ships, the length of the quay as well as the land based cranes used by the ships.
In many cases transportation is performed as total ship loads from one place to another, in other cases parts of the load are loaded or unloaded in different harbours. In both cases the ship, with its transportation capability rests and is not used in periods of loading and unloading. Even if the harbour time is utilized also for bunkering, maintenance and repairs, the harbour time is much longer than needed for such operations, due to the time for loading and unloading.
Different systems have been developed for acceleration of loading and unloading operations, such as large quick operating cranes, advanced container cranes and other load handling systems.
With the system according to the present invention, the harbour time for ships is substantially decreased for loading and unloading as loading and unloading are performed before and after the ship visits a harbour. These advantages are achieved with the transportation system according to the present invention.
With the transportation and load handling system according to the present invention, a possibility is provided to execute loading and unloading when the need exists or when the capacity for loading and unloading is present. The system is very flexible as to the type of load and in relation to arrival and departure times for ships as the load units according to the system is waiting to be transported, the loading is completed, or opposite, the units may wait until unloading is made. The system can be utilized for which ever type of load, such as gas, oil, bulk or cargo.
BRIEF DESCRIPTION OF THE DRAWINGS
The drawing discloses in FIG. 1 schematically a cross section of a ship constructed according to the transportation system of the present invention, FIG. 2 discloses a vertical longitudinal section of the ship in FIG. 1 and FIG. 3 discloses an example for utilization of the transportation system according to the present invention, adapted for oil transport.
DETAILED DESCRIPTION OF THE DRAWINGS
The principle of the transportation system is disclosed, especially in FIGS. 1 and 2. A ship hull 1 of the catamaran type has adapted the opening between the two hulls for receipt of a load unit 2. The two hulls of the catamaran are connected with each other at the uppermost area with a deck 4 on which the superstructure of the ship is arranged, however not disclosed in the drawing.
The load unit 2 and the catamaran 1 are interconnected by lifting the catamaran so much by means of the ballast system of the catamaran, that the load unit 2 can be floated into the room between the two hulls of the catamaran 1, whereafter the catamaran 1 is lowered onto the load unit 2.
The load unit 2 substantially fills out the open space between the two hulls of the catamaran 1 and is connected with the hulls of the catamaran by means of correspondingly adapted connections 5 which may be designed based on suitable principles and remote controlled from the ship bridge.
The catamaran 1 is provided with a bow 3 which is common for both hulls and cover the open space between the hulls, respectively cover the hulls and the load unit 2. The bow 3 is removed from the bow portion of the catamaran for the purpose of manoeuvring the load unit 2 in or out of the space between the catamaran hulls. Preferably the bow 3 is tiltable as disclosed in FIG. 3, thereby to push or pull the load unit 2 in or out of the space. Even the bow 3 is secured to the catamaran 1 and the load unit 2
REFERENCES:
patent: 3537413 (1970-11-01), Farrell
patent: 4135468 (1979-01-01), Kirby et al.
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