GB1575514A - Boats - Google Patents
Boats Download PDFInfo
- Publication number
- GB1575514A GB1575514A GB15900/76A GB1590076A GB1575514A GB 1575514 A GB1575514 A GB 1575514A GB 15900/76 A GB15900/76 A GB 15900/76A GB 1590076 A GB1590076 A GB 1590076A GB 1575514 A GB1575514 A GB 1575514A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hulls
- catamaran
- openings
- boat assembly
- 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
Links
Classifications
-
- 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
- B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
- B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
- B63B1/12—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly
- B63B1/121—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising two hulls
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
- B63B34/20—Canoes, kayaks or the like
- B63B34/21—Canoes, kayaks or the like characterised by constructional features
- B63B34/23—Sectionalised, e.g. modular, collapsible or foldable
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Emergency Lowering Means (AREA)
Description
(54) BOATS
(71) We, ALAN DEREK FIELDING and CLIVE HUGH FIELDING, both British
Subjects of 28 Norwich Close, Lichfield,
Staffordshire, England and 43 Duncomb Road,
Sutton Colfield, West Midlands, England, do hereby declare the invention for which we pray that a patent may be granted to us and the method by which it is to be performed, to be particularly described in and by the following statement :
This invention relates to pleasure boats and has for its object to provide such a boat which is particularly versatile in use and convenient to transport.
According to the invention a boat assembly comprises two hulls detachably connected together by comlectillg structure to form a catamaran, the hulls being each in the form of a canoe hull with a cockpit opening therein, the hulls having removable covers for said cockpit openings and for openings in the hulls to accept the connecting structure, said covers being used in the hulls in accordance with the purpose of the hulls either as part of the catamaran or individually as canoes.
The apparatus may therefore be used as a catamaran or as two individual canoes.
The invention will now be described by way of example with reference to the accompanying drawings in which:
Figure 1 is a side view of a catamaran, constructed according to the invention,
Figure 2 is a plan view thereof, and
Figure 3 is a front elevation view thereof.
As shown in the drawings the catamaran comprises two hulls 10, 11 . Each is in the form of a closed in canoe hull mounted on its side.
Connecting the two hulls 10, 11 is a detachable connecting structure comprising two tubes 12,
13 engaging in respective tubular sockets in the hulls. The beam 12 is disposed near the forward end of the catamaran, the other beam 13 being
near the rear end.
The sockets for receiving the ends of the beams are closed ended tubes fitted into the two canoe hulls 10, 11 at angles inclined to the hulls so that, as shown in Figure 3, the hulls 10, 11 are outwardly and downwardly inclined.
To the centre of the beam 12, a mast 14 is fitted and on this is mounted through a conventional pivot 15 a boom 16. A kicking strap 16a connects the boom with a fixing near the base of the mast. There is also provided an adjustable main sheet 16b incorporating pulleys and connecting the boom outer end with a fixture on the rear beam 13. The mast is secured by wire stays 17 which are rearwardly inclined and which are secured to the hulls 10, 11 respectively. There is also a wire forestay 18 connected to the two hull front ends by further wires 18a.
Suitable rigging is provided for hoisting and securing to the mast and boom, a sail 19. One or more additional sails may also be used.
At the stern of each of the hulls are respective rudders 20, connected by a cross arm tiller 21, which may be articulated as shown.
Stretched between the hulls 10, 11 and the beams 12, 13 is a net 22 forming a platform between these members.
Thus described, the boat is in the form of a catamaran.
However, all components can be dismantled, not only for transportation, but to enable the two hulls 10, 11 to be used as individual canoes or kayaks.
Each such hull has a greatly central cockpit with a cockpit cover 23, which can be fitted in place to form a waterproof seal, when the boat is used as a catamaran, but which can be removed for use as a canoe.
Additionally, when the hulls are used as canoes, the sockets to receive the ends of the beams 12 and 13 are sealed by means of plugs.
The rudders 20 are also removed.
The canoe hulls are of approximately con ventional configuration, though the nose of each is less sharply pointed than in conventional canoes, and additionally, the stern of each is provided with a flat support surface for the rudders when the boat is being used as a catamaran.
WHAT WE CLAIM IS:
1. A boat assembly comprising two hulls Is -detachably connected together by connecting structure to form a catamaran, the hulls being each in the form of a canoe hull with a cockpit opening therein, the hulls having removable covers for said cockpit openings and for openings in the hulls to accept the connecting structure, said covers being used in the hulls in accordance with the purpose of the hulls either as part of the catamaran or individually as canoes.
2. A boat assembly as claimed in claim 1 in which the two hulls, when in the catamaran form, are mounted on their sides and are provided with other gear required for sailing in the catamaran form.
3. A boat assembly as claimed in claim 1 or claim 2 in which the connecting structure includes beams engaging, at their ends, in said openings in the hulls, the openings for such engagement being provided with said covers for closing them when the hulls are used in the canoe form.
4. A boat assembly as claimed in any one of the preceding calims in which the connecting structure includes a mast and boom and associated gear for at least one sail.
5. A boat assembly as claimed in claim 2 in which each hull is provided with fixings for rudders for use in the catamaran form.
6. A boat assembly substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (6)
1. A boat assembly comprising two hulls Is -detachably connected together by connecting structure to form a catamaran, the hulls being each in the form of a canoe hull with a cockpit opening therein, the hulls having removable covers for said cockpit openings and for openings in the hulls to accept the connecting structure, said covers being used in the hulls in accordance with the purpose of the hulls either as part of the catamaran or individually as canoes.
2. A boat assembly as claimed in claim 1 in which the two hulls, when in the catamaran form, are mounted on their sides and are provided with other gear required for sailing in the catamaran form.
3. A boat assembly as claimed in claim 1 or claim 2 in which the connecting structure includes beams engaging, at their ends, in said openings in the hulls, the openings for such engagement being provided with said covers for closing them when the hulls are used in the canoe form.
4. A boat assembly as claimed in any one of the preceding calims in which the connecting structure includes a mast and boom and associated gear for at least one sail.
5. A boat assembly as claimed in claim 2 in which each hull is provided with fixings for rudders for use in the catamaran form.
6. A boat assembly substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB15900/76A GB1575514A (en) | 1976-04-20 | 1976-04-20 | Boats |
FR7711842A FR2348846A1 (en) | 1976-04-20 | 1977-04-20 | PLEASURE BOAT |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB15900/76A GB1575514A (en) | 1976-04-20 | 1976-04-20 | Boats |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1575514A true GB1575514A (en) | 1980-09-24 |
Family
ID=10067577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15900/76A Expired GB1575514A (en) | 1976-04-20 | 1976-04-20 | Boats |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2348846A1 (en) |
GB (1) | GB1575514A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2300156A (en) * | 1995-04-25 | 1996-10-30 | Donald Graham Wright | A Demountable Boat |
US7137349B2 (en) * | 2003-06-24 | 2006-11-21 | David Morelock | Kickdown catamaran |
-
1976
- 1976-04-20 GB GB15900/76A patent/GB1575514A/en not_active Expired
-
1977
- 1977-04-20 FR FR7711842A patent/FR2348846A1/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2300156A (en) * | 1995-04-25 | 1996-10-30 | Donald Graham Wright | A Demountable Boat |
GB2300156B (en) * | 1995-04-25 | 1998-09-30 | Donald Graham Wright | A demountable boat |
US7137349B2 (en) * | 2003-06-24 | 2006-11-21 | David Morelock | Kickdown catamaran |
Also Published As
Publication number | Publication date |
---|---|
FR2348846A1 (en) | 1977-11-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3883909A (en) | Sectional small water craft | |
US5829376A (en) | Outrigger watercraft | |
US4172426A (en) | Folding outrigger releasable brace for trimaran | |
US3902443A (en) | Combination boat stabiliser and sail kit | |
GB1184914A (en) | Pivotal Rigging for Sailing Boats and Sail Propelled Vehicles | |
GB1347200A (en) | Multi-hulled boats | |
US4621587A (en) | Boat construction | |
US3212109A (en) | Water craft | |
US3304899A (en) | Reversible sailing vessel | |
US4082053A (en) | Multirudder steering system for multihull boats | |
US3838655A (en) | Sailboat rigging | |
US3371636A (en) | Waterborne vessels | |
US4316424A (en) | Wind propelled craft | |
US5515801A (en) | Folding trimaran | |
US3859943A (en) | Sailing gear for water craft | |
US5894807A (en) | Sailboat | |
GB1575514A (en) | Boats | |
GB2213435A (en) | Multihull assembly mechanism | |
US4637332A (en) | Pivotal motor mount | |
GB2030946A (en) | Rigging for a tiltable mast | |
SE500685C2 (en) | sailboat Rigging | |
US4890570A (en) | Wind propelled sailing craft | |
US3839978A (en) | Yacht kit | |
GB2090563A (en) | Collapsible boats | |
GB922065A (en) | Improvements relating to sailing boats |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |