GB2023511A - Keels - Google Patents

Keels

Info

Publication number
GB2023511A
GB2023511A GB7915847A GB7915847A GB2023511A GB 2023511 A GB2023511 A GB 2023511A GB 7915847 A GB7915847 A GB 7915847A GB 7915847 A GB7915847 A GB 7915847A GB 2023511 A GB2023511 A GB 2023511A
Authority
GB
United Kingdom
Prior art keywords
keel
hull
fins
keels
locking
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.)
Granted
Application number
GB7915847A
Other versions
GB2023511B (en
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
Publication of GB2023511A publication Critical patent/GB2023511A/en
Application granted granted Critical
Publication of GB2023511B publication Critical patent/GB2023511B/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 
    • B63B41/00—Drop keels, e.g. centre boards or side boards ; Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B2035/009—Wind propelled vessels comprising arrangements, installations or devices specially adapted therefor, other than wind propulsion arrangements, installations, or devices, such as sails, running rigging, or the like, and other than sailboards or the like or related equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
    • B63B2039/065—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water the foils being pivotal about an axis substantially parallel to the longitudinal axis of the vessel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)
  • Prostheses (AREA)

Abstract

A keel comprising two mutually inclined fins (1, 2) which are movable relative to a hull on which the keel is mounted and means such as releasable ratchet devices (31, 32) for locking the fins in any of a plurality of positions relative to the hull. The keel may thus be selectively positioned asymmetrically with respect to the hull to give improved performance and to provide a stable base on inclined surfaces.
GB7915847A 1977-09-16 1978-09-14 Keels Expired GB2023511B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3867677 1977-09-16
GB2343678 1978-05-26

Publications (2)

Publication Number Publication Date
GB2023511A true GB2023511A (en) 1980-01-03
GB2023511B GB2023511B (en) 1982-04-21

Family

ID=26256510

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7915847A Expired GB2023511B (en) 1977-09-16 1978-09-14 Keels

Country Status (3)

Country Link
EP (1) EP0006912A1 (en)
GB (1) GB2023511B (en)
WO (1) WO1979000151A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232126A (en) * 1989-03-08 1990-12-05 Fred Parker Birch Pivotable sailing boat keel
WO2004043774A1 (en) * 2002-11-13 2004-05-27 Gibbs Technologies Ltd Double flexible keel

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501147A1 (en) * 1981-03-05 1982-09-10 Moinard Pierre Jean Folding type keel for yacht - has screw or jack in sealed compartment of hull which operates keel via cranks and pivot mechanism
FR2610283A1 (en) * 1987-02-04 1988-08-05 Dumortier Paul Fins with asymmetric profile and variable length
DE3713176A1 (en) * 1987-02-07 1988-08-18 Erich Victora Sailing boat with winged keel
FR2623159B1 (en) * 1987-11-17 1990-03-02 Villeneuve Jacques PIVOTING ASYMMETRIC ANTI-DRIFT PLAN FOR MULTIHULLS
FR2755937B1 (en) * 1996-11-20 1999-02-05 Briand Philippe BARS OF BOATS, DOUBLED IN THE CROSS-SECTIONAL PLAN AND PROVIDED WITH A COMMON FIXING TO THE HULL OF A BOAT

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB737888A (en) * 1952-10-07 1955-10-05 Harold William Fawcett Improvements in or relating to sailing craft
CH388803A (en) * 1963-07-09 1965-02-28 Routchenko Wladimir Boat drift
DE2254205A1 (en) * 1972-11-06 1974-05-16 Helmut Fricke BOAT WITH BALLAST KILL FIN
DE2551319A1 (en) * 1975-11-13 1977-05-26 Heiko Guenther Friedri Schwarz HINGED-UP KEL FOR SAILBOATS
US4044703A (en) * 1976-08-25 1977-08-30 Joel Kurtz Sailboat control apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232126A (en) * 1989-03-08 1990-12-05 Fred Parker Birch Pivotable sailing boat keel
GB2232126B (en) * 1989-03-08 1992-10-28 Fred Parker Birch Pivotable sailing boat keel
WO2004043774A1 (en) * 2002-11-13 2004-05-27 Gibbs Technologies Ltd Double flexible keel
GB2401583A (en) * 2002-11-13 2004-11-17 Gibbs Tech Ltd Double flexible keel
GB2401583B (en) * 2002-11-13 2006-05-10 Gibbs Tech Ltd Double flexible keel

Also Published As

Publication number Publication date
EP0006912A1 (en) 1980-01-23
WO1979000151A1 (en) 1979-03-22
GB2023511B (en) 1982-04-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee