US3625174A - Ship construction - Google Patents

Ship construction Download PDF

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Publication number
US3625174A
US3625174A US869979*A US3625174DA US3625174A US 3625174 A US3625174 A US 3625174A US 3625174D A US3625174D A US 3625174DA US 3625174 A US3625174 A US 3625174A
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US
United States
Prior art keywords
vessels
ship
vessel
propulsion
construction
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Expired - Lifetime
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US869979*A
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English (en)
Inventor
Bjarne Rosted
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AKERS MEK AS
AS AKERS MEK
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AKERS MEK AS
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
    • B63B1/12—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/02—Hulls assembled from prefabricated sub-units
    • B63B3/08—Hulls assembled from prefabricated sub-units with detachably-connected sub-units

Definitions

  • the third vessel has less draft than the other two and lies between the two other vessels and is joined thereto so that its hull lies above the waterline.
  • the nonsymmetrical sides of the two vessels are placed in opposing rela tionship to one another so that the sea-going characteristics of the combined vessel are improved.
  • INVENTOR m 8Y6 ⁇ may, Mv u/LLI ATTORNEYS SHIP CONSTRUCTION
  • the present invention relates to a new ship or vessel construction, preferably for larger ships, as, for example, supertankers.
  • Previously cargo ships e.g., bulk cargo ships were made uniformly, i.e., as a uniform hull for a ship construction and provided with propulsion means, navigation means, etc.
  • the tonnage has increased very much lately resulting in supertankers of several hundred thousand tons, and such ships are now planned in an order of up to 800,000 tons or even more.
  • Such colossal ship units require corresponding enormous ship building docks or slips.
  • large amounts of steel are required to give these ships the necessary strength, such ships for one thing, necessarily being of considerable length.
  • a ship comprising the building of at least one approximately complete vessel provided with propulsion machinery and one more vessel, which preferably lacks propulsion machinery and then combining the two vessels alongside to form one combined ship unit.
  • two approximately complete vessels provided with propulsion machinery are built as well as one further vessel without propulsion machinery, whereupon these three vessels are combined along the sides of one another with the further vessel lacking propulsion machinery arranged between the two first mentioned vessels.
  • vessel When the term vessel is used in this specification it should cover any hull construction designed to be built and launched as a separate, floating unit.
  • a ship unit is obtained, with propulsion machineries in both lateral vessels, whereas the intermediate vessel only serves to receive cargo.
  • a ship construction one can, for example, build a supertanker of 600,000 tons by successively building three 200,000 tons ships one of which has no engine. It is thus possible to build the two engine-driven vessels at first and, if desired, put them into operation so as to earn freightage while the completing section, that is, the nonengine-driven vessel is built.
  • the two sailing vessels can be summoned and the three vessels can be assembled definitely to a ship unit of, for example, 600,000-tons carrying capacity.
  • the nonengine-driven vessel can be built more or less without lateral plating on the side or sides to be joined with an adjacent engine driven vessel, since the plating of said adjacent vessel can serve as a common longitudinal bulkhead for both vessels.
  • the nonengine-driven vessel also can have a bottom construction and/or a cross-sectional profile contributing to alleviate the displacement of the water masses being pushed by this or the other vessels constituting the ship unit wherein the hull of the intermediate vessel lies entirely above the water.
  • the bilges and possibly the top edge of the plating on adjacent sides are also fonned so as to let the joining line or possibly the welded joint between the hulls lie above the water level for the ship in ballast.
  • the assembly of, for example, three vessels to a combined unit as specified above, can thus be carried out with the three vessels floating freely in the sea and maneuvered into position alongside one another.
  • the individual vessels can be joined by welding and/or other joining means. If desired, the adjacent ship's sides are constructed so as to engage one another and/or provided with meshing elements and possibly completed by further joining means. A construction of this kind would permit the joined ships hulls to be disassembled or taken apart from one another, when this is necessary for docking and/or more extensive reparations, e.g., after average.
  • FIG. 1 shows a side view of the combined ship.
  • FIG. 2 shows a top plan of the ship.
  • FIG. 3 is a cross section through the combined ship.
  • One is the portside vessel, 2 at the starboard vessel having between them a third vessel 3.
  • the two first-mentioned vessels are provided with propulsion machinery and rudders etc.
  • the intermediate vessel 3 lacks propulsion means and has less depth than the two first mentioned vessels.
  • both the lateral vessels 1 and 2 can preferably be somewhat asymmetric, as shown in FIG. 3.
  • the usual curve of the bilges 8 at the ship outside can for example have a form as indicated in FIG. 3 as regards the side facing the central section 3.
  • a similarly adapted sectional profile can be arranged for the decks and other adjacent portions of the two side vessels.
  • the side vessels 1 and 2 will thus not be quite symmetric as to their cross-sectional structures.
  • the symmetrical irregularity will, however, not be so great as to prevent the possibility of letting the lateral vesselssail as separate cargo ships while the last section of the complete construction is built, whereupon the three vessels are combined as mentioned above.
  • the ship comprises three combined vessels as in the shown embodiment, it may be suitable to arrange the bridge with axociated controls on the central vessel, as indicated in FIG. 2.
  • This can be achieved by removing the original and in this case preferably provisional bridge constructions and building a new, permanent bridge on the central section, or by transferring the bridge construction from one of the lateral vessels to the central vessel.
  • the decks of the individual vessels are preferably fitted into one uniform deck for the whole ship, as indicated in FIG. 2.
  • first and second vessels constructed to be independent seagoing vessels and each having freight-carrying hold and including independent means for propulsion and navigation, said first and second vessels each having similar cross-sectional structures.
  • a third vessel positioned between and joined to said first and second vessels and dependent upon at least one of said first and second vessels for propulsion and navigation to provide a ship having greater carrying capacity than said individual first, second and third vessels the sidewalls of said third vessel comprising the adjoining said hulls of said first and second vessels.
  • said third vessel includes means for controlling the propulsion of said first and second vessels.

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  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Body Structure For Vehicles (AREA)
  • Control Of Conveyors (AREA)
  • Toys (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US869979*A 1968-05-20 1969-05-20 Ship construction Expired - Lifetime US3625174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO1957/68A NO118596C (de) 1968-05-20 1968-05-20

Publications (1)

Publication Number Publication Date
US3625174A true US3625174A (en) 1971-12-07

Family

ID=19878545

Family Applications (1)

Application Number Title Priority Date Filing Date
US869979*A Expired - Lifetime US3625174A (en) 1968-05-20 1969-05-20 Ship construction

Country Status (9)

Country Link
US (1) US3625174A (de)
JP (1) JPS5217959B1 (de)
DE (1) DE1925550C3 (de)
DK (1) DK126366B (de)
FR (1) FR2008935A1 (de)
GB (1) GB1250932A (de)
IT (1) IT960505B (de)
NL (1) NL147085B (de)
NO (1) NO118596C (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080196655A1 (en) * 2004-07-23 2008-08-21 David Chart Vessels

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2853477B1 (de) * 2013-09-27 2018-03-14 NSB niederelbe Schiffahrtgesellschaft mbH & Co. KG Verfahren zum Vergrößern eines Schiffes und vergrößertes Schiff

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1266362A (en) * 1917-05-31 1918-05-14 Frank R Wells Detachable duplex vessel.
US2325993A (en) * 1941-07-02 1943-08-03 Universal Hydraulic Stress Equ Airplane carrier and seadrome
US2359549A (en) * 1942-07-10 1944-10-03 Epstein Charles Ocean traveling cargo ship
US2464957A (en) * 1945-02-27 1949-03-22 Garfield A Wood Boat
US3362372A (en) * 1966-08-01 1968-01-09 Earl A. Peterson Integrated barge and tugboat
US3481296A (en) * 1966-05-11 1969-12-02 Robert M Stephens Air-waterborne vessels
US3494318A (en) * 1967-07-27 1970-02-10 Ginjuro Katsumura Container train for transportation by water

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1266362A (en) * 1917-05-31 1918-05-14 Frank R Wells Detachable duplex vessel.
US2325993A (en) * 1941-07-02 1943-08-03 Universal Hydraulic Stress Equ Airplane carrier and seadrome
US2359549A (en) * 1942-07-10 1944-10-03 Epstein Charles Ocean traveling cargo ship
US2464957A (en) * 1945-02-27 1949-03-22 Garfield A Wood Boat
US3481296A (en) * 1966-05-11 1969-12-02 Robert M Stephens Air-waterborne vessels
US3362372A (en) * 1966-08-01 1968-01-09 Earl A. Peterson Integrated barge and tugboat
US3494318A (en) * 1967-07-27 1970-02-10 Ginjuro Katsumura Container train for transportation by water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080196655A1 (en) * 2004-07-23 2008-08-21 David Chart Vessels

Also Published As

Publication number Publication date
IT960505B (it) 1973-11-30
DE1925550A1 (de) 1969-12-04
NL147085B (nl) 1975-09-15
NL6907658A (de) 1969-11-24
NO118596B (de) 1970-01-12
JPS5217959B1 (de) 1977-05-18
GB1250932A (de) 1971-10-27
DK126366B (da) 1973-07-09
FR2008935A1 (de) 1970-01-30
DE1925550C3 (de) 1975-11-20
NO118596C (de) 1976-12-23

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