Emergency craft for patrol, search, rescue and firefighting operations having weather deck structures which fit into apertures in the deck and are removable to provide full access to components below the weather deck. These vessels can accomplish directional movements of forward, reverse, side and rotation about their centers of gravity. Most of these movements can be accomplished even though an engine has become inoperable.

A stent for a vessel implanted in the vessel of the living body including a main body portion of the stent formed into a tube by a yarn, which is formed of a biodegradable polymer, exhibiting a shape memory function. The main body portion of the stent is shape-memorized to a size that can be implanted in the vessel. The main body portion of the stent is implanted in the vessel of the living body as it is contracted in diameter by an external force, and is enlarged in diameter by being heated wit...

Vessels, or housings, and covers therefor are detailed herein. Loads and load-bearing surfaces exist principally at the periphery of the covers, by contrast with centralized loading utilized in other designs. In some versions of the vessels, a cover is sandwiched, at its periphery, between a cap assembly formed of both a jack ring and an upper component or cap and thus carried on and off the associated vessel when the cap is placed onto or removed from the vessel, respectively.

Proa sailing vessel including a pair of spaced hulls comprising a windward and a leeward hull, a crossbeam assembly interconnecting the hulls and a fixed mast assembly with its lower end supported on the crossbeam intermediate the hulls and being inclined athwartship so that its upper end is disposed substantially vertically above the windward hull. The mast assembly is supported by a rigging arrangement which includes a standing stay extending between the upper end portion of the mast assembly ...

A furnace vessel is supported by way of a pair of trunnion pins rotatably mounted in bearings on pedestal structures. To allow vibrations set up in the vessel in the direction parallel to the common axis of the trunnion pins to be absorbed, the pedestal structures are pivotably mounted on fixed supports so as to be pivotable about a pair of parallel axes spaced from and normal to the common axis of the trunnion pins, and at least one of the structures has damping means associated therewith by wh...

A seagoing vessel having a length of between 45 and 175 meters and designed to operate at speeds of between 25 and 70 knots, the vessel comprising a single main hull with stabilising amahs positioned on either side, wherein the hydrostatic value of GM determined in the transverse plane lies between 0.5 and 5 meters, the vessel being shaped above the designed waterline such that the righting lever (GZ) curve as the vessel heels meets the following requirements: the area (b) bounded by the GZ curv...

Apparatus for effecting reactions comprising a plurality of reaction vessels for holding reagents, an electrically conducting polymer which emits heat when an electric current is passed through it, and control device for controlling supply of current to the polymer, the polymer being connectable to an electrical supply via the control device. The control device may be arranged such that different currents and therefore different temperatures can be achieved in each reaction vessel. Certain novel...

A drinking vessel comprises a first vessel member adapted to hold a liquid and a second vessel member associated with, but separated from, the first vessel member to form a barrier against the formation of condensation on the exterior surface of the second vessel member when a cold liquid is contained in the first vessel member. In one embodiment, the first vessel member comprises a removable insert which conforms generally to the configuration of the second vessel member to form a double-walled...

A fermentation vessel comprises an outer shell, and an annular draft tube located within the shell and spaced therefrom to promote continuous circulation of fluids through said draft tube within said shell. The draft tube has an internal cavity located within its walls. The cavity is connected to a fluid supply conduit that extends externally of the shell. A plurality of discrete nozzles are disposed about the circumference of the tube and communicate with the cavity to permit egress of fluids f...

A multi-hull vessel has a center section and a plurality of float arm assemblies disposed on opposite sides of the center section. The float arm assemblies are pivoted so as to be movable upwardly or downwardly. Each float arm assembly comprises upper and lower arm arrangements, each including inner and outer segments joined by a pivot. The outer segment of the lower arm arrangement includes a float. To raise the arms assembly, a rigging line is provided which extends from the center section to ...