Abstract: A system for connecting a row of concrete marine floats to each other by fastening elongated wales along the upper side edges thereof. Post-tensioned tendons having fastening members mounted on their ends extend transversely through the float. The tendons are relatively thin so that their elongation responsive to tensioning is sufficient to maintain the force of the wales against the float as the wales shrink. However, the tendons, being relatively thin, do not have sufficient strength to withstand the shear forces generated between the float and wales. Consequently, rigid shear-reinforcing sleeves, preferably surrounding the tendons, project from the float into the wales. The tendons may be either rigid rods having threaded ends or flexible wire cables having an anchor mounted at each end.

Abstract: A slidably assembled dock is described having spaced facing side channels slidably receiving platform modules, the edges of said modules being within said channels, and the channels being tied together by elongated eye bolt elements which extend through the positioned platform modules. The platform modules have an upper layer notched at the edge to fit smoothly with the channel upper flanges, a lower layer resting on the channels, and connector stringers therebetween.

Abstract: The boat dock consists of a series of laterally spaced, tubular stanchions of adjustable height having tee fittings at their upper ends threaded into the ends of adjacent tubular stringers. Plastic resin planks are slideably engaged over the tubular stringers.

Abstract: The present invention is directed to a support system and method which permits the self-driving supporting columns after the structure has been fully assembled in place and which utilizes the gravitational force acting on this structure to achieve self-driving of the columns in a predetermined direction (e.g., vertically). In this manner, pile driving, predrilling deepholes or preparation of concrete footings can be avoided. The support system of the present invention is also provided with means for resisting movement of the columns out of alignment with the predetermined direction as they are self-driven into the substrate and means for maintaining the structure in a predetermined elevation (e.g., horizontal) as the columns are driven. The system can also include many means for maintaining the structure at a predetermined height relative to the substrate over which it is supported.

Abstract: A cargo handling equipment comprises a stationary column installed offshore of a river or a creek, a stationary bridge bridging the shore of said river or creek and said stationary column and provided with a cargo transportation apparatus, a movable bridge swingably connected to the stationary column and provided with another cargo transportation apparatus, and a floating body detachably secured to the free end of the movable bridge and provided with legs which are vertically movable and can reach the bottom of the river or the creek.

Abstract: A plurality of relatively narrow finger piers project perpendicularly from mainwalk floats at spaced-apart locations. The finger piers are secured to the floats in cantilever fashion using a variety of fastening structures. Since loads carried by the finger pier are not supported by the buoyancy of the pier, the width and thickness of the pier can be substantially less than comparable floating finger piers. In one embodiment the pier is principally formed by a triangular frame which is secured to the mainwalk floats by either a mounting bracket or rods extending transversely through the mainwalk floats and longitudinally through upper corner pipes of the triangular frame. A deck is then fastened across the upper pipes. The vertical angle of each pier may be adjusted by rotating an adjusting nut which abuts the lower pipe of the triangular frame. In a second embodiment pairs of parallel beams are secured to the mainwalk floats by a bracket, and a deck is mounted on the upper surface of the beams.

Abstract: A dock clamp employed in combination with a dock support structure that supports a dock section at an adjusted height by means of post members that are slidable within corresponding sleeve members attached to the dock section, the dock clamp serving to provide a fixed frictional coupling between a pair of corresponding post and sleeve members. The dock clamp includes a pair of rigid pieces each having an open end and a pronged end with a tapered configuration that is wedged between corresponding post and sleeve members at opposing ends and at one side of the sleeve member for applying a radial force in a direction that drives said post and sleeve members together at the side opposite to said one side in response to an applied axial force. The dock clamp further includes fastener means for applying an axial force by forcing facing open ends of said pair of rigid pieces toward one another.

Abstract: A floating dock having a steel framework to the underside of which are fastened buoyant flotation bodies and to the upper surface of which is fastened a rigid imperforate sheet such as plywood. The framework is constructed of a suitable number of C-shaped structural members each of which has a uniform cross section and a uniform hole pattern therein. The hole pattern is established so that members of different lengths can be assembled to form a dock structure of virtually any shape and size. All parts of the floating dock are dimensioned so that joints between various members are staggered to provide high strength and rigidity. A method for fabricating the floating dock structure which makes possible at least partial construction before the dock structure is placed in the water and also makes possible construction by persons of moderate skill using conventional hand tools.

Abstract: A novel marine dock section adapted to be supported by flotation units or posts is described. A pair of horizontally spaced apart, upright, prefabricated truss-like frameworks, each comprising a pair of longitudinal tubular members preferably of rectangular cross-section secured a spaced distance apart by a plurality of vertical tubular struts extending through and double swaged into the longitudinal tubular members, are joined together by a plurality of cross members to form a planar rectangular frame which supports a wood plank decking.

Abstract: A floating gas liquefaction installation having a liquefaction unit and a sealed, thermally insulated tank space. The liquefaction unit is associated with a first independently floating unit and the tank space is constructed in a second independently floating unit. The two units, one of which exhibits high stability and the other of which exhibits a relatively lower stability, are associated with each other so that they respond together to wind and wave action. In one embodiment the units are fixedly connected to each other and in a second embodiment relative movement between the two units is possible.

Abstract: An hydraulic boat lift utilizing readily available city water as the pressure fluid comprises one or more lift cylinders buried vertically under a body of water with the upper ends of the cylinders protruding into the water, a cradle supporting plate is connected to the top of each cylinder ram to support a cradle below the water surface until the cradle is elevated above the water surface, the cradle being stabilized in a horizontal plane by at least three poles vertically buried below the water and spaced equiangularly about each lift cylinder, each pole at its upper end being connected by a rigid radial member to the upper end of the lift cylinder and the cradle supporting plate being connected to the upper end of each pole by a chain having means to adjust its length to prevent the plate and cradle from being unbalanced out of horizontal position.

Abstract: A dock constructed of a pair of trusses each of which includes two spaced apart channel members having tubular bridging material therebetween. Cross members adjacent the ends of the trusses join the channel member in spaced apart relationship so that decking material can be supported by the trusses. The channel members used are of the type having a longitudinally extending restricted opening in one side. These slots facilitate bolting bridging and cross members to the channel members. The dock is supported by upright channel members located adjacent each corner. These upright members are adjustably secured by angle brackets bolted in the restricted openings therein and to the trusses so that the height of the dock can be adjusted.

Abstract: A boat dock assembled from portable sections hingedly connected to each other and provided with foldable and adjustably extensible leg assemblies. Each section is formed from tread retaining decking members made of extruded metal sections interconnected in close parallel spaced relation by interlocking elements. Pivotally separable half-shell foot elements are connected to the leg assemblies for stabilized support of the dock sections.

Abstract: The specification discloses a precast concrete dock and a method and apparatus for installing same. The dock includes a precast concrete platform supported by piling means at one end and including at least one generally U-shaped bumper member with legs projecting laterally beyond the side edges of the platform and being made of a material more resilient and less abrasive than concrete whereby there is less damage to a boat bumping into the bumper member legs than would be the case if a boat bumped into the precast concrete platform. To install the dock, an elongated jig having legs at one end is located out over the water and slidable guide means on the apparatus are located at a point where it is desired to locate pilings. Pilings are lifted into position within the piling guide means and jetted downwardly into the surface below the water by means of an internal passageway.