GB1362792A - Vessel having a control fin for example a keel or rudder and mechan ism for use therein - Google Patents

Vessel having a control fin for example a keel or rudder and mechan ism for use therein

Info

Publication number
GB1362792A
GB1362792A GB310571A GB310571A GB1362792A GB 1362792 A GB1362792 A GB 1362792A GB 310571 A GB310571 A GB 310571A GB 310571 A GB310571 A GB 310571A GB 1362792 A GB1362792 A GB 1362792A
Authority
GB
United Kingdom
Prior art keywords
shaft
vessel
keel
rudder
degrees
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
GB310571A
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.)
Sibthorpe A M
Original Assignee
Sibthorpe A M
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 Sibthorpe A M filed Critical Sibthorpe A M
Priority to GB310571A priority Critical patent/GB1362792A/en
Priority to US00188001A priority patent/US3776171A/en
Priority to FR7137873A priority patent/FR2110042A5/fr
Publication of GB1362792A publication Critical patent/GB1362792A/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 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
    • B63B1/28—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type with movable hydrofoils
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

1362792 Keels; rudders; hydrofoils A M SIBTHORPE 8 Oct 1971 [21 Oct 1970 25 Jan 1971 13 April 1971] 49982/70 3105/71 and 9278/71 Headings B7S and B7V The keel 10 (Fig. 1b) of a vessel (which may be a hydrofoil craft or an air cushion craft) is fixed to or integral with a shaft 16 which is rotatable about its longitudinal axis in a bearing 18 attached to the hull. The shaft 16 is tilted forwardly and upwardly in, and is canted laterally of. the vessel's fore-and-aft vertical plane in such a way that rotation of the shaft 16 through 90 degrees shifts the keel from its normal deepwater vertical position (Fig. lb) to a retracted position in which the keel 10 lies with its plane transverse to the vertical plane and spaced below the vessel's bottom. Shaft 16 may be power-operated. A bilge keel 70 (Fig. 1d) may be provided; it is attached to a shaft 74 which is rotated by gearing 78, 76 to bring it into position 70a. A rudder may also be provided on a shaft 112 rotatable by tiller 120 which is turned through 180 degrees in the vertical plane and then 180 degrees in horizontal plane in order to move the rudder 110 (full line) to position 110a (broken lines) in which position the draught of the vessel is reduced. The arrangement is such that the rudder is self centring in both positions.
GB310571A 1970-10-21 1971-01-25 Vessel having a control fin for example a keel or rudder and mechan ism for use therein Expired GB1362792A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB310571A GB1362792A (en) 1970-10-21 1971-01-25 Vessel having a control fin for example a keel or rudder and mechan ism for use therein
US00188001A US3776171A (en) 1970-10-21 1971-10-12 Vessel having a control fin, for example, a keel or rudder, and mechanism for use therein
FR7137873A FR2110042A5 (en) 1970-10-21 1971-10-21

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB4998270 1970-10-21
GB310571A GB1362792A (en) 1970-10-21 1971-01-25 Vessel having a control fin for example a keel or rudder and mechan ism for use therein
GB927871 1971-04-13

Publications (1)

Publication Number Publication Date
GB1362792A true GB1362792A (en) 1974-08-07

Family

ID=27254203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB310571A Expired GB1362792A (en) 1970-10-21 1971-01-25 Vessel having a control fin for example a keel or rudder and mechan ism for use therein

Country Status (3)

Country Link
US (1) US3776171A (en)
FR (1) FR2110042A5 (en)
GB (1) GB1362792A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016824A (en) * 1975-10-14 1977-04-12 Olav Thyvold Rudder post tube assembly

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1592501A (en) * 1977-11-29 1981-07-08 Masheder H Craft to be borne upon or within a fluid medium
DE3069834D1 (en) * 1979-09-14 1985-01-31 Graham Richard Declifford Improvements in fishing vessels
DE19546471A1 (en) * 1995-12-13 1997-06-19 Otto Huelskoetter Fin keel for boat
FR2974058B1 (en) 2011-04-14 2013-05-10 Philippe Becel RETRACTABLE BOAT
US10836511B2 (en) * 2017-04-19 2020-11-17 Bell Helicopter Textron Inc. Deployable apparatus to prevent helicopter rollover

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1703868A (en) * 1928-06-28 1929-03-05 Alloy Boat Corp Folding fin for motor boats
US3226738A (en) * 1964-11-25 1966-01-04 Fred K Fox Self-trailing boats

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016824A (en) * 1975-10-14 1977-04-12 Olav Thyvold Rudder post tube assembly

Also Published As

Publication number Publication date
FR2110042A5 (en) 1972-05-26
US3776171A (en) 1973-12-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees