US3885514A - Arrangement relating to ship hulls - Google Patents

Arrangement relating to ship hulls Download PDF

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Publication number
US3885514A
US3885514A US384252A US38425273A US3885514A US 3885514 A US3885514 A US 3885514A US 384252 A US384252 A US 384252A US 38425273 A US38425273 A US 38425273A US 3885514 A US3885514 A US 3885514A
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US
United States
Prior art keywords
hull
bow
ship
torpedo
side portions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US384252A
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English (en)
Inventor
Jan Tronje Lauenborg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LAUENBORG JAN T
Original Assignee
LAUENBORG JAN T
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LAUENBORG JAN T filed Critical LAUENBORG JAN T
Application granted granted Critical
Publication of US3885514A publication Critical patent/US3885514A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability

Definitions

  • a ship hull of the trimaran type where the middle part of the hull extends downwards to a depth below the side hulls and where the middle part terminates in a rounded bulb, the middle part having a substantially shorter lengthwise extension than the side hulls and being terminated a distance forward of the aft end of the ship hull.
  • the rounded bulb has the shape of a torpedolike body, the front end of which extends freely forwards of the connection to the main hull.
  • the bulb or the torpedolike body in accordance with the invention will therefore be situated at a greater depth than the rest of the bottom of the hull.
  • this body When moving in sea, this body will generally always move through the water without being lifted out of the water even during very strong pitching motion of the vessel. This has the effect that waves will not be able to pound against the bottom of the hull as in previous hull designs and, at the same time, the buoyancy of the body will counteract digging of the bow into the sea.
  • the motion of the vessel can be adjusted to the optimum by the arrangement of means in the body dividing it into trimming tanks and/or fuel tanks.
  • connection between the bulb or the torpedolike body and the bottom of the hull extends only over a part of the length of the hull body. Thereby the turning diameter of the vessel will not be increased by much and the vessel will have good maneouvrability.
  • the water resistance will be small since the body is torpedoshaped.
  • connection with the bottom of the hull is relatively narrow in section, so that the torpedo or drop shape of the surface of the body is interrupted only to an unessential extent.
  • Hydrophones and other equipment can be arranged inside the body if desirable. These will thereby have a much more advantageous position than previously in that they will be placed at a substantially greater depth.
  • the body By arranging the body in such a way that it comprises trimming tanks, not only will the possibility be gained for adjusting the trim for advantageous motion in sea but also for obtaining maximum speed.
  • the downwardly projecting body will also act as a wave dampener in sea pounding against the vessel from any direction, particularly when the hull of the vessel is lifted partly out of the water at high speed.
  • FIG. 1 shows schematically a vessel shaped in accordance with the invention as seen from the side
  • FIG. 2 shows the same vessel seen somewhat from behind in perspective view.
  • the torpedolike body is given the reference designation A and it protrudes downwards from the bottom near the bow section of the vessel.
  • the middle and aft section B of the vessel is shaped like a catamaran hull and, together with the protruding body A of the bow section C, a modified trimaran construction is obtained.
  • any other shape of the bottom can be used with the arrangement according to the invention. Similarily, the invention covers any modification of the shape of the bow or torpedo-shaped body as long as this lies within the definition of being lengthwise extending, elongated and streamlined. It is furthermore possible to arrange more than one such body under the bottom of the vessel, for example, side by side and/or one after the other. Moreover, the body A can be divided into sections for use as trimming tanks and/or fuel tanks as shown in dotted lines in FIG. 1.
  • a ships hull having a bow, stern, bottom and lateral sides and including two depending side portions which are spaced in opposition to one another and have free lower edges, said side portions defining at said bottom, a central longitudinal channel extending from the stern towards the bow, and a central portion disposed in said channel at the front thereof and including a downwardly projecting portion extending at a level beneath the free lower edges of said side portions and of substantially shorter length than the overall length of the hull, said downwardly projecting portion being disposed substantially in entirety below said free lower edges of the side portions and constituted as a horizontally extended torpedo-like body.
  • a ships hull as claimed in claim 1 comprising means dividing said torpedo-like body into a plurality of tank sections.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Toys (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Vibration Prevention Devices (AREA)
  • Electric Cable Installation (AREA)
  • Tires In General (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Laminated Bodies (AREA)
  • Cleaning Or Clearing Of The Surface Of Open Water (AREA)
  • Adjustment And Processing Of Grains (AREA)
  • Body Structure For Vehicles (AREA)
US384252A 1972-08-01 1973-07-31 Arrangement relating to ship hulls Expired - Lifetime US3885514A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO02744/72*[A NO128434B (sv) 1972-08-01 1972-08-01

Publications (1)

Publication Number Publication Date
US3885514A true US3885514A (en) 1975-05-27

Family

ID=19879090

Family Applications (1)

Application Number Title Priority Date Filing Date
US384252A Expired - Lifetime US3885514A (en) 1972-08-01 1973-07-31 Arrangement relating to ship hulls

Country Status (22)

Country Link
US (1) US3885514A (sv)
JP (1) JPS5643904B2 (sv)
AR (1) AR197412A1 (sv)
AU (1) AU475674B2 (sv)
BE (1) BE803106A (sv)
BR (1) BR7305777D0 (sv)
CA (1) CA969429A (sv)
DD (1) DD106806A5 (sv)
DE (1) DE2335815C3 (sv)
ES (1) ES417778A1 (sv)
FI (1) FI55802C (sv)
FR (1) FR2194602B1 (sv)
GB (1) GB1392887A (sv)
IE (1) IE37951B1 (sv)
IN (1) IN138771B (sv)
IT (1) IT992308B (sv)
NL (1) NL7310548A (sv)
NO (1) NO128434B (sv)
PL (1) PL86241B1 (sv)
RO (1) RO72102A (sv)
SE (1) SE400064B (sv)
ZA (1) ZA734707B (sv)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989009721A2 (en) * 1988-03-28 1989-10-19 Swath Ocean Systems, Inc. Improved hull construction for a swath vessel
US4899679A (en) * 1987-10-06 1990-02-13 Sarvis Oy Keel structure
US5140930A (en) * 1987-04-30 1992-08-25 Rhoda Stolk And Stolkraft Pty. Ltd. Water craft
US5211126A (en) * 1992-05-18 1993-05-18 Johnson Robert K Ship or boat construction having three hulls
US6131529A (en) * 1997-05-31 2000-10-17 The East Group Water going vessel hull and method for hull design
US6263819B1 (en) * 1999-09-16 2001-07-24 Pacific Marine Supply Co., Ltd. Low drag submerged displacement hull
WO2003095296A1 (en) * 2002-05-08 2003-11-20 Luigi Mascellaro Hull for shipping with a mono-catamaran architecture
US20050178310A1 (en) * 2003-05-01 2005-08-18 Steven Loui Low drag submerged asymmetric displacement lifting body
US20060169191A1 (en) * 2004-04-30 2006-08-03 Steven Loui Bow lifting body
US20090133614A1 (en) * 2007-11-26 2009-05-28 Karl Mortensen Water skimmer
US20090223431A1 (en) * 2008-03-06 2009-09-10 Steven Loui Bow lifting body with deadrise
US8783200B1 (en) 2012-08-17 2014-07-22 Bennie Meyers Transformable hull vessel
US20170152003A1 (en) * 2014-06-11 2017-06-01 Monotricat Srl C.R. Hull for low drag boats
CN108945278A (zh) * 2018-06-26 2018-12-07 广东新船重工有限公司 一种双体船

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442176A1 (fr) * 1978-11-24 1980-06-20 Goulley Michel Bateau de type catamaran a etrave centrale
JPH0338906U (sv) * 1989-08-23 1991-04-15
JP2006111045A (ja) * 2004-10-12 2006-04-27 Ihi Marine United Inc 船舶の船首形状

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US911806A (en) * 1908-08-06 1909-02-09 Napoleon B Broward Boat.
US2371478A (en) * 1943-04-05 1945-03-13 Archie A Steele Boat hull
US2757629A (en) * 1953-11-06 1956-08-07 Harwill Inc Boat stabilizers
US2815730A (en) * 1956-04-17 1957-12-10 Horsdal Paul Boat structure
US3138130A (en) * 1962-10-08 1964-06-23 Morgan Jasper Boat hull
US3177836A (en) * 1962-09-12 1965-04-13 Carrosserie Torsa Schallbetter Boat and use thereof
US3239856A (en) * 1964-10-27 1966-03-15 Stocking Stannard Boat construction
US3469557A (en) * 1967-05-01 1969-09-30 Donald L Wollard Channel stern power boat
US3503358A (en) * 1968-10-29 1970-03-31 Carl Moesly Self-stabilizing boat hull

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1169344A (fr) * 1957-03-12 1958-12-26 Dispositif triangulaire de coques annulant le tangage et le roulis et par voie de conséquence la dérive
FR1414492A (fr) * 1963-11-25 1965-10-15 Perfectionnements aux bateaux
US3702598A (en) * 1971-06-07 1972-11-14 Jack J Szptyman Watercraft

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US911806A (en) * 1908-08-06 1909-02-09 Napoleon B Broward Boat.
US2371478A (en) * 1943-04-05 1945-03-13 Archie A Steele Boat hull
US2757629A (en) * 1953-11-06 1956-08-07 Harwill Inc Boat stabilizers
US2815730A (en) * 1956-04-17 1957-12-10 Horsdal Paul Boat structure
US3177836A (en) * 1962-09-12 1965-04-13 Carrosserie Torsa Schallbetter Boat and use thereof
US3138130A (en) * 1962-10-08 1964-06-23 Morgan Jasper Boat hull
US3239856A (en) * 1964-10-27 1966-03-15 Stocking Stannard Boat construction
US3469557A (en) * 1967-05-01 1969-09-30 Donald L Wollard Channel stern power boat
US3503358A (en) * 1968-10-29 1970-03-31 Carl Moesly Self-stabilizing boat hull

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5140930A (en) * 1987-04-30 1992-08-25 Rhoda Stolk And Stolkraft Pty. Ltd. Water craft
US4899679A (en) * 1987-10-06 1990-02-13 Sarvis Oy Keel structure
WO1989009721A3 (en) * 1988-03-28 1989-11-16 Swath Ocean Systems Inc Improved hull construction for a swath vessel
US4919063A (en) * 1988-03-28 1990-04-24 Swath Ocean Systems, Inc. Hull construction for a swath vessel
WO1989009721A2 (en) * 1988-03-28 1989-10-19 Swath Ocean Systems, Inc. Improved hull construction for a swath vessel
US5211126A (en) * 1992-05-18 1993-05-18 Johnson Robert K Ship or boat construction having three hulls
US6131529A (en) * 1997-05-31 2000-10-17 The East Group Water going vessel hull and method for hull design
US6263819B1 (en) * 1999-09-16 2001-07-24 Pacific Marine Supply Co., Ltd. Low drag submerged displacement hull
US20060060120A1 (en) * 2002-05-08 2006-03-23 Luigi Mascellaro Hull for shipping with a mono-catamaran architecture
WO2003095296A1 (en) * 2002-05-08 2003-11-20 Luigi Mascellaro Hull for shipping with a mono-catamaran architecture
US7165503B2 (en) 2002-05-08 2007-01-23 Luigi Mascellaro Hull of a ship having a central keel and side chines
US7004093B2 (en) 2003-05-01 2006-02-28 Navatek, Ltd. Low drag submerged asymmetric displacement lifting body
US20050178310A1 (en) * 2003-05-01 2005-08-18 Steven Loui Low drag submerged asymmetric displacement lifting body
US20060169191A1 (en) * 2004-04-30 2006-08-03 Steven Loui Bow lifting body
US7191725B2 (en) 2004-04-30 2007-03-20 Navatek, Ltd. Bow lifting body
US20090133614A1 (en) * 2007-11-26 2009-05-28 Karl Mortensen Water skimmer
US7578253B2 (en) 2007-11-26 2009-08-25 Water Skimmer Boats Llc Water skimmer
US20090223431A1 (en) * 2008-03-06 2009-09-10 Steven Loui Bow lifting body with deadrise
US8783200B1 (en) 2012-08-17 2014-07-22 Bennie Meyers Transformable hull vessel
US20170152003A1 (en) * 2014-06-11 2017-06-01 Monotricat Srl C.R. Hull for low drag boats
US11034413B2 (en) * 2014-06-11 2021-06-15 Monotricat Srl C.R. Hull for low drag boats
CN108945278A (zh) * 2018-06-26 2018-12-07 广东新船重工有限公司 一种双体船
CN108945278B (zh) * 2018-06-26 2024-04-02 广东新船重工有限公司 一种双体船

Also Published As

Publication number Publication date
FI55802B (fi) 1979-06-29
IN138771B (sv) 1976-03-27
BE803106A (fr) 1973-12-03
SE400064B (sv) 1978-03-13
FI55802C (fi) 1979-10-10
DD106806A5 (sv) 1974-07-05
DE2335815A1 (de) 1974-02-28
NL7310548A (sv) 1974-02-05
FR2194602A1 (sv) 1974-03-01
BR7305777D0 (pt) 1974-07-11
JPS5643904B2 (sv) 1981-10-15
AU475674B2 (en) 1976-09-02
PL86241B1 (sv) 1976-05-31
JPS4985780A (sv) 1974-08-16
ES417778A1 (es) 1976-02-16
CA969429A (en) 1975-06-17
ZA734707B (en) 1974-10-30
AU5835973A (en) 1975-01-30
NO128434B (sv) 1973-11-19
DE2335815C3 (de) 1979-11-22
RO72102A (ro) 1980-12-30
IT992308B (it) 1975-09-10
DE2335815B2 (de) 1979-03-29
AR197412A1 (es) 1974-04-05
FR2194602B1 (sv) 1977-09-30
IE37951B1 (en) 1977-11-23
IE37591L (en) 1974-02-01
GB1392887A (en) 1975-05-07

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