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FR2252950A1 - Boom design for rapid reefing - has telescopic construction and allows easy tightening of sail edge and elimination of winches - Google Patents

Boom design for rapid reefing - has telescopic construction and allows easy tightening of sail edge and elimination of winches

Info

Publication number
FR2252950A1
FR2252950A1 FR7342518A FR7342518A FR2252950A1 FR 2252950 A1 FR2252950 A1 FR 2252950A1 FR 7342518 A FR7342518 A FR 7342518A FR 7342518 A FR7342518 A FR 7342518A FR 2252950 A1 FR2252950 A1 FR 2252950A1
Authority
FR
France
Prior art keywords
boom
reefing
sail
winches
elimination
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
FR7342518A
Other languages
French (fr)
Other versions
FR2252950B3 (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.)
DUCHEMIN ERIC
Original Assignee
DUCHEMIN ERIC
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 DUCHEMIN ERIC filed Critical DUCHEMIN ERIC
Priority to FR7342518A priority Critical patent/FR2252950A1/en
Publication of FR2252950A1 publication Critical patent/FR2252950A1/en
Application granted granted Critical
Publication of FR2252950B3 publication Critical patent/FR2252950B3/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/08—Connections of sails to masts, spars, or the like
    • B63H9/10—Running rigging, e.g. reefing equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)

Abstract

Reefing of sails is facilitated by this design of boom which consists of a shorter portion (h) on which slides telescopically the boom proper (a). The short portion is fixed to the mast (i) and a handle (m) operates the arrangement by coiling a rope (n) around a shaft (k) which slides in a slot (o), the other end of the rope being attached to a peg on the inner tube. The outer tube carries a slot (b) in which the bottom edge of the sail (c) and a series of hooks (e) are engaged. In use, the boom is shortened and the sail hauled down by the required amount, the eyelets (r, f) are drawn to the boom by means of the reefing line (t) which is wrapped round hook (e). After this, the boom is extended to tighten the edge of the sail and the reef furled by the ties (s). Cheapness, ease of standardisation, high speed reefing, elimination of winches and pulleys and reduction of boom loading are claimed.
FR7342518A 1973-11-29 1973-11-29 Boom design for rapid reefing - has telescopic construction and allows easy tightening of sail edge and elimination of winches Granted FR2252950A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7342518A FR2252950A1 (en) 1973-11-29 1973-11-29 Boom design for rapid reefing - has telescopic construction and allows easy tightening of sail edge and elimination of winches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7342518A FR2252950A1 (en) 1973-11-29 1973-11-29 Boom design for rapid reefing - has telescopic construction and allows easy tightening of sail edge and elimination of winches

Publications (2)

Publication Number Publication Date
FR2252950A1 true FR2252950A1 (en) 1975-06-27
FR2252950B3 FR2252950B3 (en) 1976-10-08

Family

ID=9128442

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7342518A Granted FR2252950A1 (en) 1973-11-29 1973-11-29 Boom design for rapid reefing - has telescopic construction and allows easy tightening of sail edge and elimination of winches

Country Status (1)

Country Link
FR (1) FR2252950A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983003805A1 (en) * 1982-04-23 1983-11-10 Jamieson Robert S Improved sail system for sailboards, and boardsailing apparatus and method
DE3539375A1 (en) * 1984-11-07 1986-06-12 Jean Michel St Vaast La Hougue Despres WRAPPING DEVICE
US4646670A (en) * 1982-04-23 1987-03-03 Jamieson Robert S Sail system for sailboards, and boardsailing apparatus and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983003805A1 (en) * 1982-04-23 1983-11-10 Jamieson Robert S Improved sail system for sailboards, and boardsailing apparatus and method
US4646670A (en) * 1982-04-23 1987-03-03 Jamieson Robert S Sail system for sailboards, and boardsailing apparatus and method
DE3539375A1 (en) * 1984-11-07 1986-06-12 Jean Michel St Vaast La Hougue Despres WRAPPING DEVICE

Also Published As

Publication number Publication date
FR2252950B3 (en) 1976-10-08

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Legal Events

Date Code Title Description
ST Notification of lapse