GB1272543A - Drop-keels for boats - Google Patents

Drop-keels for boats

Info

Publication number
GB1272543A
GB1272543A GB327570A GB327570A GB1272543A GB 1272543 A GB1272543 A GB 1272543A GB 327570 A GB327570 A GB 327570A GB 327570 A GB327570 A GB 327570A GB 1272543 A GB1272543 A GB 1272543A
Authority
GB
United Kingdom
Prior art keywords
keel
keels
drop
boats
boat
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
GB327570A
Inventor
Charles Elie Louis Chauveau
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 GB1272543A publication Critical patent/GB1272543A/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 
    • B63B41/00—Drop keels, e.g. centre boards or side boards ; Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels
    • B63B2041/003—Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels
    • B63B2041/006—Telescopically collapsible keels

Landscapes

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

Abstract

1,272,543. Drop-keels. C. E. L. CHAUVEAU. 22 Jan., 1970 [18 June, 1969], No. 3275/70. Heading B7V. A boat has a weighted keel 3 movable between a position in which the keel or part of it projects below the bottom surface of the boat and a retracted position in which only the weight 4 carried at the end of the keel projects. Guides 5, 5<SP>1</SP> define a straight path for the keel and winch 17 controls the movement along the path.
GB327570A 1969-06-18 1970-01-22 Drop-keels for boats Expired GB1272543A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6920222A FR2045665A6 (en) 1969-06-18 1969-06-18

Publications (1)

Publication Number Publication Date
GB1272543A true GB1272543A (en) 1972-05-03

Family

ID=9035904

Family Applications (1)

Application Number Title Priority Date Filing Date
GB327570A Expired GB1272543A (en) 1969-06-18 1970-01-22 Drop-keels for boats

Country Status (2)

Country Link
FR (1) FR2045665A6 (en)
GB (1) GB1272543A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2353976A (en) * 1999-09-08 2001-03-14 David William Knight Vessel having retractable keels
GB2399057A (en) * 2004-04-23 2004-09-08 Hewie Edward Dalrymple Drop keels for high speed flat bottomed vessels
WO2008135807A1 (en) * 2007-05-04 2008-11-13 Marcella Vincenti Sail pleasure craft
WO2012107237A3 (en) * 2011-02-10 2013-01-10 Ralf Hinkel Retractable keel apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421796A1 (en) * 1978-04-03 1979-11-02 Boutemy Jean Pierre Height adjustable keel for sailing vessel - has guides fitting grooves in hull to prevent misalignment due to water pressure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2353976A (en) * 1999-09-08 2001-03-14 David William Knight Vessel having retractable keels
GB2399057A (en) * 2004-04-23 2004-09-08 Hewie Edward Dalrymple Drop keels for high speed flat bottomed vessels
GB2399057B (en) * 2004-04-23 2005-02-02 Hewie Edward Dalrymple Drop keels for high speed flat bottomed vessels
WO2008135807A1 (en) * 2007-05-04 2008-11-13 Marcella Vincenti Sail pleasure craft
WO2012107237A3 (en) * 2011-02-10 2013-01-10 Ralf Hinkel Retractable keel apparatus
US9302741B2 (en) 2011-02-10 2016-04-05 Ralf Hinkel Retractable keel apparatus

Also Published As

Publication number Publication date
FR2045665A6 (en) 1971-03-05

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees