摘要:
This is a user supported portable sail used to provide wind powered momentum for an individual on a moveable base. The invention involves the use of a balanced aerodynamic sail with the airfoil planes constructed in a way that allows the device to be used in more than one attitude. The invention also includes the use of clear panels for visibility, and the use of collapsable sections to render the device to a small portable and storable size. The support structure is provided with the means to allow it to be braced or stepped against a base and the shape itself is made to be infinitely and finely variable by the use of adjustable lines attached to the material and to the frame.
摘要:
An interment vessel is designed to be capable of transoceanic travel. A body for the vessel is buoyant and self-righting. The vessel has a sail disposed diagonally across its upper surface, relative to a keel along the bottom, providing propulsion under power of prevailing winds. Crematory ashes can be placed in the body of the vessel, either into an opening in the body which is thereafter sealed, or into a sealable container or urn arranged to be carried by the vessel. A provision to store and display a removable reward can be provided as an incentive for a finder of the vessel to return the vessel or the container/urn to the decedent's family or the like. Instructions can be provided, for example detailing the address and mentioning a further reward.
摘要:
A wind-powered boat has a pair of spaced apart, fixed hull sections and a castering front hull between the side hull sections. A turret section is supported for rotation on the boat and has a foot-powered winch on which a load line and a pair of control lines of a maneuverable parafoil are wound. Hand-manipulated control reins engage the control lines for maneuvering the parafoil. A foot-operated steering mechanism controls movement of the rudder to steer the boat. A collapsing ring is slideable over the parafoil for collapsing and supporting the parafoil when retrieved. A launching ring releasably supports the parafoil until it is launched.
摘要:
A spinnaker wherein the head section of the spinnaker incorporates a novel panel and sub-panel layout which improves the control of the spinnaker in use and allows projection of a greater sail area.
摘要:
An articulated wing has a fore wing portion and after wing portion connected to an articulate axis support structure which extends along the length of the wing and separates the two wing portions. Control actuators separately connect the fore and after wing portions to the articulate wing support structure in order to provide separate angular positioning capabilities for the two wing portions. Further, the articulate wing support structure itself may be rotated with respect to the mechanism it is attached to. These and other flexible controls over the wing attitude and size allow the wing to provide a number of force vector amplitudes as well as directions for any given fluid flow direction and velocity.
摘要:
A hoist block is fixed on an inside edge of the sail and to articulated slide in order to enable a rotation in the axis of a sail boat mast groove. A drop block is on the outside edge of the sail. An associated tube or slat extends between the hoist and drop blocks in order to stiffen the sail profile. The block 2 or 9 is rigidly fixed on an articulated slider to hoist or lower the sail mechanism.
摘要:
A tensioner for drawing a point on a flexible wing's surface toward its leading edge. The wing's camber is thereby increased and maintained even at high airflow velocities and low angles of attack. The provision of a tensioner length adjustment system allows the wing's camber to be optimized for a particular set of conditions. The fitment of a plurality of such tensioners along the wing's chordlines and along its span allows the wing's shape to be fine-tuned both in terms of camber as well as twist.
摘要:
A surfing sail includes a basic sail, whose luff is attached to a mast associated in the usual way with a boom to the aft end of which is attached the clew of the basic sail and an auxiliary sail which serves reefing purposes. The auxiliary sail is triangular, narrow and long and its headboard is attached pivotally to the basic sail adjacent its top and in the proximity of the leech. At its foot region and at a level corresponding to the boom, the auxiliary sail is fitted with a guide batten, which is curved and arranged such that during pivotal movement of the auxiliary sail it is displaced along a circular path. The radius of the circular path corresponds to the distance of the guide batten from the pivot on which the auxiliary sail is fixed to the basic sail. The guide batten is guided longitudinally. The auxiliary sail can be reefed or taken out during surfing in a simple and easy manner, such that a windsurfer can reef or take out the surfing sail during surfing without any attendant problems.
摘要:
A wingsail structure wherein the sail comprises a plurality of ribs encircling the mast and is guided slidably along the mast. A fabric skin is wrapped around the ribs. In a preferred embodiment, the mast is provided with at least two opposed, parallel longitudinal grooves forming respective guides for running carts attached to the ribs and is formed by a pair of parallel slats interconnected by cross-beams, said slats having an airfoil shaped cross-section.
摘要:
A sail for sports equipment, in particular a windsurfing sail, comprising a multilayered composite film comprising a stretch-oriented and heat-set polyester film preferably made of polyethylene terephthalate, and at least one plastics layer of polyolefin, polyamide, polyester, polyvinyl chloride or fluorocarbon resin applied to at least one of the two surfaces of said polyester film.