GB792317A - Improvements in or relating to boats - Google Patents

Improvements in or relating to boats

Info

Publication number
GB792317A
GB792317A GB278655A GB278655A GB792317A GB 792317 A GB792317 A GB 792317A GB 278655 A GB278655 A GB 278655A GB 278655 A GB278655 A GB 278655A GB 792317 A GB792317 A GB 792317A
Authority
GB
United Kingdom
Prior art keywords
centre
aft
boat
hull
buoyancy
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
Application number
GB278655A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB278655A priority Critical patent/GB792317A/en
Publication of GB792317A publication Critical patent/GB792317A/en
Expired legal-status Critical Current

Links

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
    • B63B1/121—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising two hulls

Abstract

792,317. Single and twin hull boats. COCKBURN, D. H. Jan. 30, 1956 [Jan. 31, 1955], No. 2786/55. Classes 113 and 114. In a boat having a plane planing surface 14 which tapers fore and aft of the centre of buoyancy, said surface is inclined downwards in the rearward direction at a small angle (between 1 and 8 degrees). The curve of successive submerged cross-sectional areas 18 taken normal to the longitudinal axis of the boat conforms substantially to a versed-sine curve for the length forward of the centre of buoyancy and to a trochard curve for the length aft of the centre of buoyancy, In one embodiment the planing surface is narrower than the width of the hull, the sides of the hull being bulged outwards above the water line. In other embodiments hulls with planing surfaces according to the invention are incorporated in a twin hull motor boat and in a catamaran type sailing boat. According to the Provisional Specification a device for steering and lateral resistance comprises two thin vertical plates, one immersed forward and one aft of the centre of the sails, which plates are pivoted and joined together by a connecting rod, a tiller being fitted to the aft plate. The plates are normally in line but move in unison when the tiller is operated, the front plate pulling the bow in one direction and the rear plate moving the stern in the other.
GB278655A 1955-01-31 1955-01-31 Improvements in or relating to boats Expired GB792317A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB278655A GB792317A (en) 1955-01-31 1955-01-31 Improvements in or relating to boats

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB278655A GB792317A (en) 1955-01-31 1955-01-31 Improvements in or relating to boats

Publications (1)

Publication Number Publication Date
GB792317A true GB792317A (en) 1958-03-26

Family

ID=9745868

Family Applications (1)

Application Number Title Priority Date Filing Date
GB278655A Expired GB792317A (en) 1955-01-31 1955-01-31 Improvements in or relating to boats

Country Status (1)

Country Link
GB (1) GB792317A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0179391A2 (en) * 1984-10-17 1986-04-30 Firma August Kühne Sail boat
WO1996000680A1 (en) * 1994-06-29 1996-01-11 Silky Limited Catamaran
US6116180A (en) * 1993-12-16 2000-09-12 Paragon Mann Limited Boat
WO2009140739A1 (en) * 2008-05-22 2009-11-26 Kim Chamberlin Improvements for a marine vessel

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0179391A2 (en) * 1984-10-17 1986-04-30 Firma August Kühne Sail boat
EP0179391A3 (en) * 1984-10-17 1986-10-01 Firma August Kühne Sail boat
US4702186A (en) * 1984-10-17 1987-10-27 Firma August Kuhne Sailboat having at least two hulls
US6116180A (en) * 1993-12-16 2000-09-12 Paragon Mann Limited Boat
WO1996000680A1 (en) * 1994-06-29 1996-01-11 Silky Limited Catamaran
US5826533A (en) * 1994-06-29 1998-10-27 Silky Limited Twin-hulled boat
WO2009140739A1 (en) * 2008-05-22 2009-11-26 Kim Chamberlin Improvements for a marine vessel
US8286570B2 (en) 2008-05-22 2012-10-16 Kim Chamberlin Hull for a marine vessel
AU2009250345B2 (en) * 2008-05-22 2014-07-17 Ark Chamberlin Improvements for a marine vessel

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