NL7605214A - Vertically split sail boat mast - forms venturi gap which points towards leeward side of sail with vertically pivoted valve flap carrying sail - Google Patents

Vertically split sail boat mast - forms venturi gap which points towards leeward side of sail with vertically pivoted valve flap carrying sail

Info

Publication number
NL7605214A
NL7605214A NL7605214A NL7605214A NL7605214A NL 7605214 A NL7605214 A NL 7605214A NL 7605214 A NL7605214 A NL 7605214A NL 7605214 A NL7605214 A NL 7605214A NL 7605214 A NL7605214 A NL 7605214A
Authority
NL
Netherlands
Prior art keywords
sail
leeward side
valve flap
points towards
mast
Prior art date
Application number
NL7605214A
Other languages
Dutch (nl)
Original Assignee
Jan De Vroome
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 Jan De Vroome filed Critical Jan De Vroome
Priority to NL7605214A priority Critical patent/NL7605214A/en
Publication of NL7605214A publication Critical patent/NL7605214A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
    • B63B15/0083—Masts for sailing ships or boats

Landscapes

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

Abstract

The mast for a sailing vessel consists of two vertical halves (1, 2) connected to one another (4, 5) and symmetrically arranged on either side of the vertical plane of symmetry (3). The profile of the halves is such that their facing surfaces (6, 7) form a venturi-shaped gap (8) in the direction of the sail (9). A vertically extending valve member (10) is arranged in the gap and is rotatable about a shaft in the plane (3). One vertical edge of the member projects outside the mast at the side of the sail which is secured to this edge. The other edge is within the gap and can swivel into contact with one or the other surface (6 or 7) whereby the valve forms a venturi with the opposite surface (7 or 6) pointing towards the leeward side of the sail.
NL7605214A 1976-05-14 1976-05-14 Vertically split sail boat mast - forms venturi gap which points towards leeward side of sail with vertically pivoted valve flap carrying sail NL7605214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7605214A NL7605214A (en) 1976-05-14 1976-05-14 Vertically split sail boat mast - forms venturi gap which points towards leeward side of sail with vertically pivoted valve flap carrying sail

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7605214A NL7605214A (en) 1976-05-14 1976-05-14 Vertically split sail boat mast - forms venturi gap which points towards leeward side of sail with vertically pivoted valve flap carrying sail

Publications (1)

Publication Number Publication Date
NL7605214A true NL7605214A (en) 1977-11-16

Family

ID=19826200

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7605214A NL7605214A (en) 1976-05-14 1976-05-14 Vertically split sail boat mast - forms venturi gap which points towards leeward side of sail with vertically pivoted valve flap carrying sail

Country Status (1)

Country Link
NL (1) NL7605214A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0446654A1 (en) * 1990-03-13 1991-09-18 Hilbert Noorman Mast for sailing vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0446654A1 (en) * 1990-03-13 1991-09-18 Hilbert Noorman Mast for sailing vehicles
AU635395B2 (en) * 1990-03-13 1993-03-18 Hilbert Noorman Mast for sailing boats

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