Abstract: A new tank ship, or an older ship which might not otherwise be economically retrofitted to comply with current regulations, is provided with a double hull requiring essentially no internal steel structural support by distributing and compacting sand in the bottom of the tank or cargo hold, applying a layer of reinforced concrete to the sand, laying steel plates on the surface of the cured concrete and welding the abutting edges of the plates to the hull, interior bulkheads, and to each other, to form a second fluid-tight bottom in the tank. The construction method can be used to retrofit older tankers to comply with Regulation 13G of MARPOL.

Abstract: A concrete vessel is provided with a loading and unloading system, in which the vessel has an inner hull skin which is generally cylindrically curved. An outer hull skin is provided, which is transversally spaced from, and peripherally encloses the inner hull skin. The outer hull skin is planar on an upper side, so as to form a deck. A barge dock or hanger is located between the deck and the inner hull skin. A gate is provided in the outer hull skin between the deck and the inner hull skin for floating a barge to and from the dock or hanger.

Abstract: A monolithic concrete marine vessel hull construction includes an inner hull skin including at least two transversely interconnected, longitudinally, horizontally coextensive hull shells made of vertically slip-formed concrete. Each of these inner hull shells is generally cylindrically curved on inner and outer peripheral surfaces thereof. Each inner hull shell is closed at its opposite ends by end walls. The hull construction further includes an outer hull skin including an outer hull shell made of vertically slip-formed concrete that is transversely spaced from and peripherally encloses the inner hull skin. The outer hull skin is planar on its upper side and curved perimetrically on its lower side. There are a plurality of concrete bulkheads which extend between and effectively interconnect the inner and outer hull skins. The outer hull shell is closed at its opposite ends by bow and stern members. A concrete deck forms an integral part of the planar upper side of the outer shell.

Abstract: A concrete floatation module adapted for use as a floating dock or breakwater includes a molded concrete shell and a buoyant core positioned therein to also serve as a molding core. Integrally molded lengthwise extending tubular liners define passageways through the module for the passage of an interconnecting cable or rod therethrough to facilitate interconnecting a series of modules in end-to-end relation, or other configurations. Widthwise extending tubular liners may also be provided to facilitate the interconnecting of laterally extending branches of modules. The floatation modules may be readily formed on-site by integrally molding the buoyant foam core and tubular liners in the concrete shell. Upper and lower assemblies of tubular liners hold the buoyant core in proper position as the concrete is poured into the mold.

Abstract: A marine construction includes a hull for vessel made of concrete. The hull has at least two circular cylinders and additional cylinders either outside the circular cylinders or as interposed cylinder members of triangular cross-section adjacent the at least two circular cylinders. The construction is usable for transport, storage, floating docks, submarines, aircraft carriers, and the like.

Abstract: A concrete floatation module adapted for use as a floating dock, breakwater, and the like. The module includes thickened portions of concrete extending lengthwise in a concrete shell preferably in the corner portions of the shell. The shell surrounds a buoyant foam core which may be used as a molding core for the floatation module. The thickened lengthwise extending portions of concrete include integrally molded tubular liners for creating passageways through the module for the passage therethrough of an interconnecting means, such as a steel cable. The tensioned steel cables maintain the modules in compression in an end-to-end relation thereby forming a single monolithic structure. Widthwise extending liners may also be provided to facilitate the interconnecting of laterally extending branches of modules. The floatation modules may be readily formed on-site by integrally molding the buoyant foam core and tubular liners in the concrete shell.

Abstract: A marine float for use in conjunction with a concrete floating dock system and methods for manufacturing the same. The float consisting of a buoyant core of expanded polystyrene foam supporting a textured deck of standard aggregate concrete and surrounded by a shell of fiberglass reinforced cement. The float is fabricated as a unitary whole by pouring a layer of standard aggregate concrete in a form over a texturing mat to provide the textured deck, placing a buoyant element over the poured deck and spraying a layer of fiberglass reinforced cement around the buoyant element before any of the concrete elements has set. All concrete elements are then permitted to set to form a monolithic float.

Abstract: A vessel, vehicle or aircraft is self-equipped with means for producing and storing synthetic fuel generated from the synthesis of carbon dioxide and hydrogen. Energy for the synthetic fuel production is obtained from an on-board nuclear reactor.

Abstract: A bouyant foundation comprising a substantially unitary concrete hull defined by bottom, side and end walls; at least one partial bulkhead wall disposed generally normal to and spanning the bottom wall and having a height less than that of the upstanding walls to yield a plurality of recessed flotation cavities bounded by flotation cavity side walls; generally rectilinear flotation block members, having reentrant sidewall portions, disposed within the flotation cavities; restraining wedge members integral with the flotation cavity sidewalls received within the reentrant portions of the flotation block members for fixedly retaining the same within the cavities, and a method for fabricating such a structure comprising the steps of establishing a construction form including bottom, side and end wall form members; depositing a concrete mixture on the form members to yield a substantially unitary hull including concrete bottom side and end walls; positioning a plurality of positive flotation members as internal bu

Abstract: Floating dock for making elongate, cast concrete constructions by producing in sequence sections of the construction in a drainable work chamber. The dock has a base and a pair of permanent upstanding sides facing inwardly towards each other provided with a first set of fixed fastening members for locating anchoring members for the fastening of boarding members with associated reinforcing elements in a first position in the dock where a first section of the construction is cast. A second set of fixed fastening members in series with the first set is for fastening by way of corresponding anchoring members at least portions of the first section in a second position in the dock where a second section of the construction is moulded as a continuation of the first section.

Abstract: Floating dock for making elongate, cast concrete constructions by producing in sequence sections of the construction in a drainable work chamber is disclosed. The dock has a base and a pair of permanent upstanding sides facing inwardly towards each other provided with a first set of fixed fastening members for locating anchoring members for the fastening of boarding members with associated reinforcing elements in a first position in the dock where a first section of the construction is cast. A second set of fixed fastening members in series with the first set is for fastening by way of corresponding anchoring members at least portions of the first section in a second position in the dock where a second section of the construction is moulded as a continuation of the first section.

Abstract: A lightweight concrete float having a concrete shell surrounding either a hollow or buoyant foam core. The shell includes a deck surrounded by integrally formed, downwardly projecting side walls of sturdy but relatively heavy standard aggregate concrete and a bottom surrounded by integrally formed, upwardly projecting uniform or tapered side walls of lightweight but relatively weak foam aggregate concrete. Reinforcing rods are embedded along the edges of the deck, and a reinforcing mesh extends around the reinforcing rods and through the deck, side walls and bottom. The float may be formed by first pouring a layer of foam aggregate concrete into a form having a rectangular bottom surrounded by four sides. A block of buoyant foam is then placed on the bottom layer of concrete with the sides of the block spaced apart from the sides of the form. The space between the sides of the form and the sides of the block is partially filled with foam aggregate concrete.

Abstract: The construction of marine vessels comprised of light-weight re-enforced concrete embodying built-in buoyant elements such as closed-cell foam cores, structural steel rods, tendons, and the like, wherein the inner and outer concrete skins are composite with ribs to increase structural strength and stability so as to provide a relatively simple vessel; e.g., ships, tankers, floating piers or breakwaters, barges, etc.

Abstract: A new method is disclosed for treating a concrete surface to be used in cact with sea water to prevent fouling of the surface, which comprises the steps of: (a) fluating the concrete surface with an aqueous solution of a compound selected from the group consisting of fluorosilicic acid, calcium fluorosilicate, magnesium fluorosilicate, and zinc fluorosilicate of sufficient concentration to strengthen the concrete surface and to prevent biodeterioration thereof; (b) treating the concrete surface with a biocide insoluble in water and selected from the group consisting of copper naphthenate, beta-naphthol, pentachlorophenol and tributyl-tin oxide to prevent biodeterioration of the concrete surface; and (c) fixing the concrete surface treated during steps (a) and (b) by treating the surface with the biocide defined in step (b) in solution with a polyesteric resin or an epoxy resin.

Abstract: A pallet having a precast, prestressed concrete grillage superstructure including layers of elongate elements, each successively higher layer being transverse to the layer below it for heavy load bearing objects such as an industrial processing plant. The long elements are not only useful in providing the load-bearing points, but are useful in providing long channels between the elements which are useful as manways and for carrying pipe, conduits and the like that are associated with an industrial processing plant, the heavy load typically lifted and carried by such a pallet. The intersection points or junctions of the elements from layer to layer are load bearing points for distributing in radiating fashion the load placed on the top deck slab of the pallet. The pallet is suitable for transport by a submersible seaworthy vessel located beneath the pallet.

Abstract: A vertically-elongate monolithic pier body comprises:A deeply-submerged compartmented closed container or container group;A near-surface control chamber system;A deckwork carried above highest wave level;A load-carrying column and wall system extending in part through the container and chamber system, including a pair of perforated flanking walls; andA transverse wall and beam bracing framework extending in part through the container and chamber system, including a top wall and a thick slab base.The pier is intended to stand on seabed in depths of 450 feet to 1200 feet or deeper, to carry petroleum well-drilling and production equipment. The large container group is submerged at a depth where it is subjected to reduced wave pressures. The flanking pair of walls dissipate the energy of incident waves.Fabrication begins in a drydock site with the pier laid out horizontally extended.

Abstract: A marine vessel for storage or transport of cargo employing a honeycomb sandwich panel system of concrete construction applied to open or closed deck vessels comprising a plurality of vertically extending annular walls formed monolithically with the hull of the vessel in which the vertical annular walls may extend from the bottom deck or slab to the top deck or slab or between either the top or bottom and an intermediate deck or slab with the annular walls defining a plurality of compartments and serving as vertical shear walls which strengthen the structure to withstand stresses caused by wave action and the like in both longitudinal and transverse directions.

Abstract: A monolithic ship's body is formed of a hull containing bulkhead partitions disposed in a hexagonal arrangement to form a grid symmetrical about the longitudinal axis of the hull. The partitions are formed integrally with the hull. The junction between the side walls and the bottom of the hull is curved. Further, the bottom of the hull also has a curved configuration transversely of the longitudinal axis providing alternating convex and concave surfaces so that the bottom acts a hollow arch. The deck is formed integrally with the hull and the bulkhead partitions and is curved transversely to the longitudinal axis with its upper surface being convex. Steel concrete or prestressed concrete can be used in forming the monolithic ship's body.

Abstract: The tank ship is made of monolithic reinforced concrete and is formed with two symmetrical, longitudinal chambers for tanks, and an intermediate space for the operating mechanisms thereof. The massive reinforced concrete slabs which form the ship are reinforced partly by prestressed steel tendons and partly by mild (non-stressed) steel rods. The prestressed tendons running lengthwise of the ship are unspliced. The transverse bulkheads forming the ends of the tanks are curved in two directions, e.g. in the form of sections of hemispheres. Insulation is provided on the interior surface of the tank chambers and on both sides of the bulkheads.

Abstract: A tug vessel and a plurality of transport modules connected together in a chain, each including a honeycomb core formed of an array of hexagonal cells (preferably formed of reinforced concrete), are disclosed. The modules and, if desired, the tug vessel are adapted to transport liquids, gasses, semi-solids (e.g. grain) and the like in the cells. Universal joint mechanisms connect the tug vessel and the modules together in a manner which allows the tug vessel and modules to move essentially independently with respect to one another. The tug vessel includes a pair of oppositely rotating propellers, located amidships at the rear of sponsons. In addition, gimbled jet exhaust nozzels are used to control the attitude of the tug vessel. Emptying and filling of the hexagonal cells is accomplished via a conduit array which uses a central cell to act as communication chamber for surrounding cells. Cells located along the lateral sides of the overall array are used to house ballast water.

Abstract: An arrangement for providing a floating structure in which triangular modules are formed from flat slabs of ferrocement interconnected by rods which are bent to provide a triangular shape, the rods being interconnected at the portions between the slabs to provide larger triangular units, to which are applied reinforced concrete skins including wire mesh and rods extending from the apexes to the opposite sides to provide outwardly projecting portions for attachment in still larger units. Alternatively, modules may be made by casting in a mold which defines triangular sections, between which are spaces in which are placed reinforcing units that include rods and wire mesh, with the rods projecting outwardly beyond the mold to provide end portions used in assembling the modules into larger units.