Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Patent
1990-03-06
1992-01-28
Swinehart, Ed
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
114102, 114 391, B63B 1500
Patent
active
050835203
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to the technical sector of rigging of sailing boats. Sailing boats, regardless of their design, have one or several masts, fixed substantially at the level of the median longitudinal centre line of the hull, every mast being made up of a unique component. These masts have tacks of the sails set positioned on the deck, so that each mast is directly stressed by the bending forces which the sails set applies due to its connection with the hounding. Therefore, it is often necessary to call for guy ropes, pole bars, runners and tackle and the suchlike.
In addition, problems arise relating to wear and risks of breaking and tearing the sails, resulting from the friction of the sails directly against the mast and the other pieces of rigging.
In order to overcome these disadvantages and solve the problem brought up of having total freedom of the positioning of the tacks of the sail set on the deck, the production of a mast is proposed, comprised of at least two independent components likely to be fixed at one end, either side of the median longitudinal plane of the boat and connected at the other end, either in a close-joining manner or not.
This state of the art can be illustrated non-limitatively in the U.S. Pat. No. 2,147,501 and the NL Patent 86.00661 for example.
Using this special design of the mast in two independent components, it was desired to improve the aerolic output of the sail set and rigging assembly and facilitate the balancing of the surfaces of sail set of mainsails and head sails in particular.
SUMMARY OF THE INVENTION
According to the invention, this problem is overcome in that every component has an aerodynamic profiled cross-section thereby being fixed at the base and coupled at the top part whilst being able to angularly slew along a longitudinal axis in function of the direction of the wind in order to obtain the best aerolic output of the sail set and rigging assembly.
The components cooperate with means for locking in an angular position. In an advantageous manner, the components cooperate, especially at the base, with means likely to provide the simultaneous or independent angular slewing of the said components at will.
In order to solve the problem brought up relating to the angular mounting along the longitudinal axis of each of the components, the latter are mounted so as to freely rotate on an angularly fixed bush, with the capacity of adjustment, on a support component designed so as to be coupled on part of the boat, the deck in particular.
The support component has a cross section profile determined in order to enable, in combination with the elasticity of the material of which it is made, small angular variations from the front to the rear of the components with respect to the deck.
Another problem the invention intends to solve is to be able to control and slew each component of the mast in function of the wind by taking into account the possible deviation of airstreams created by the sails to ensure better adjustment of the component weather side and lee side.
This problem is overcome in that each of the components are coupled to a system likely to simultaneously control the said components according to different angular slewing to enable in particular, slewing adjustment of the said components with respect to one another and the wind.
The system includes a coupling bar connected by a system of connecting rods hinged to each of the components, the said bar being mounted so as to move in guided translation on the deck by being fitted with control means.
Another problem the invention intends to solve is to increase the rigidity of the mast as defined. With this in mind, the components are connected by one or several braces mounted so as to hinge around the said components, the said braces being profiled so as to clear the free space formed between the two components in order to leave the passage for a sail hounding.
The brace(s) are designed so as to enable additional standing or running rigging to be fitted.
According to anot
REFERENCES:
patent: 1408868 (1922-03-01), Dutcher
patent: 2147501 (1939-02-01), Ryder
patent: 3802371 (1974-04-01), Jastrab
patent: 4047493 (1977-09-01), Menegus
patent: 4064821 (1977-12-01), Roberts, Jr. et al.
patent: 4603648 (1986-08-01), Berge
patent: 4856449 (1989-08-01), Walker
French Patent Office Search Report, 24, Mar., 1989.
LandOfFree
Mast, in particular for sailing boat does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mast, in particular for sailing boat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mast, in particular for sailing boat will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1854320