摘要:
A wind propelled watercraft system is provided including a floating disk for supporting a user on a body of water. Also included is a sail assembly for driving the user on the floating disk by way of wind. The floating disk has an inwardly-facing groove for receiving the user's toes and is provided with a generally part-spherical bottom face. The sails extend between the arms and the body of the user, whereby the user can spill wind by lowering the arms.
摘要:
The fastening for foot-loop straps of surfboards has fastening bars (6) placed on the board upper side in the board body at intervals, location holes (36) at equal intervals with an insertion slot (37), an undercut (38), and an upper side positioning nut (39) for the insertion of locking bars (40) each with a swivelling handle (41). The locking bars (40) are positioned so they can turn in fastening plates (42) and have a locking bar nose (44) matching the insertion slot (37) of the bores (36) in the fastening bars (6). By turning the locking bar (40), which is placed in a location hole (36) of the fastening bars (6) corresponding to one of the desired positions chosen for the foot-loop straps, the locking bar (40) interfits with the nose of the locking bar (44) like a bayonet catch with the undercut (38) of the location hole (36). The foot-loop straps can be fastened in the desired position on the surfboard and removed from the surfboard simply and quickly without using tools.
摘要:
A method and a system for connecting a submerged loading/unloading buoy to a submerged receiving space in a floating vessel for transfer of oil to or from the vessel. The buoy is anchored to the sea bed and is connected to a transfer line for carrying the oil. A sink line, having an auxiliary buoy attached to its end, is lowered from the vessel through the receiving space, with the auxiliary buoy coming to the water surface. A suitably marked pick-up line connected to the loading/unloading buoy, is taken up and connected to the sink line. The vessel is then positioned above the submerged loading/unloading buoy and the sink and pick-up lines are pulled up through the receiving space, so that the loading/unloading buoy is hoisted up and moved to a locking position in the receiving space. The vessel is provided with a hoist to lift the lines and the loading/unloading buoy, and also with a service shaft connecting the receiving space to the deck of the vessel.
摘要:
The invention has as its object a drag anchor which is simple to manufacture and provides an effective grip in the bottom material where the anchor is to be used, besides which the anchor can be executed with a very low weight.The invention, which relates most particularly to a drag anchor, the shank of which is pivotally attached to its part which forms the fluke, is characterized in that its part (2) which forms the fluke consists of a hollow body (2) open at its front and rear end in the direction in which the shank (1) is towed, i.e. the direction of movement of the drag anchor, which body forms a mantle enclosing the rear part of the shank with an extension in the direction of movement of the drag anchor.
摘要:
Self-supporting timber box having a base panel, lateral walls each projecting perpendicularly from one side of the base panel to delimit the profile of an internal space of the box, a plurality of internal partitions (14) which are parallel to each other and perpendicular to the base panel and which extend between the lateral walls in such a way as to divide the internal space into a plurality of compartments intended to receive a heat-insulating lining, and a cover panel, wherein it has at least one stiffening element (16) which is positioned in the internal space transversely with respect to the internal partitions and which has an area of connection (17, 18) to each of the internal partitions to increase the buckling resistance of the internal partitions, the area of connection extending over a depth greater than or equal to half of the distance between the base and cover panels.
摘要:
The invention relates to a trawling vessel for use with a trawl net (5) for catching marine bio-resources, with a trawl sack (3) attached aft on a trawl net (5) for keeping the catch, said vessel comprising lines (51, 61) for towing and hauling said trawl net (5) and trawl drums (6) for hauling said trawl net (5), characterized by a lock chamber (1) in a stem (21) of said vessel, said lock chamber (1) having a main portion of its volume below said design water line of said vessel, said lock chamber (1) being arranged for hauling said trawl sack (3) with the catch from the sea, through a sluiceway (2) in said stern (21), and said lock chamber (1) being arranged for discharge of said trawl sack (3) and for temporarily keeping said catch; and a trunk channel (16, 12) leading up from said lock chamber (1) and being arranged so that said trawl sack (3), in a generally discharged state, may be hauled up through said trunk channel (16, 12) to a deck (24), thereby leaving said catch in said lock chamber (1).
摘要:
A method of reconstructing a liquid carrying tank vessel, such as an oil tanker, and to the reconstructed vessel whereby a tank vessel constructed with a single bottom hull is reconstructed to a double bottom hull configuration at least over the hull portion including the cargo tanks, and to the reconstructed vessel thereby obtained. The original hull is separated at a point where the bow curve meets the midships section of the hull. A new section is inserted which follows the curvature of the original bows, and increases both the beam and draft. A new double bottom is applied over the remainder of the cargo tank carrying space of the hull, which is tapered in to meet the curve of the stern section. The new section can be fabricated with, or without, a double bottom, depending on its intended use.
摘要:
An arrangement in a vessel for loading or unloading at sea a flowable medium, especially oil. The vessel is provided with a receiving space for a submarine buoy in the form of a module built on the bow portion of the vessel. The submerged downwardly opening receiving space is connected by a service shaft with the deck of the vessel. The receiving space has a downwardly opening conical shape for mating with a buoy of corresponding outer shape.
摘要:
There is provided a tensioning device for pretensioning mooring lines in accordance with the tension-in-a-bight principle. The tensioning device is located at the bight of the mooring lines and includes a link catching device comprising inclined land surfaces and a catching tooth at the lower end of the land surfaces, which catching device catches a link, the caught link, of link chain during heaving up on a riser chain section so enabling the pretensioning to be achieved in the mooring line. Slots are provided in the tensioning device adjacent the land surfaces such that the downline link threading the caught link and the following downline link each have a significant degree of pivotal freedom to preclude bending moment loading in these links during heaving up on the riser line during tensioning.
摘要:
A mooring/support system for anchoring marine structure comprises a plurality of anchor elements equiangularly spaced and connected to the sea bed at one end by means of anchors. The other ends of the anchor elements are connected to a common bridle element. Eight anchor elements may be used giving the system a octagonal configuration. Each anchor element comprises a buoyant portion and a non-buoyant portion, the buoyant portion being such that a mooring point positioned below the surface of the water to provide an essentially horizontal restraint to the moored or supported object and to allow ships to pass over the system without contact therewith. The system is such that it can be pre-installed before arrival of the marine structure. The buoyancy of the chambers may be varied so as to regulate the preload of the system.