| 摘要 |
A novel apparatus and method of controlling sails and their related mechanical forces on sailing systems through the utilization of threaded elements/forms. This device is easily scaled to the requirements of the particular sailing system being controlled. It has four basic elements providing control. The first is a rotatable lead screw having a lead angle of 5° or less. A matching internally threaded element, which travels in a linearly upon the lead screw when same is rotated. The lead screw may have non-threaded smooth sections on each end, which provide an area for rotary bearing supports. Rotation of the lead screw is provided for upon either or both ends. The lead screw may be of any form or design provided it has a lead angle of 5° or less. This feature eliminates the need for brakes or other holding devices to sustain loads after they have been positioned. |
