Abstract: A piping system in a maritime structure, such as a ship, is subdivided into individual piping units at predetermined intervals in the longitudinal and/or lateral direction along lateral or longitudinal dividing planes. The piping units are disposed and supported on removable pallets mounted on a surface in the interior of the ship, e.g., on a selected deck, or bottom deck of the ship. The open ends of corresponding mating pipes of adjacent piping units are arranged at the dividing planes. The corresponding pipes of one piping unit and corresponding mating pipes of adjacent piping units are connected in a fluid-tight manner by means of removable pipe connectors. The dividing planes may advantageously be made to coincide with a grid having lines which are drawn to divide a deck length and width uniformly. The piping units may be standardized and prefabricated.

Abstract: A warship with individual standardized operating units and a central command post unit has standardized information transmission lines independent of the type of units arranged on the individual standard platforms. A data processor (11', 11", 12' to 31') is provided inside each standardized operating unit (11, 12 to 31). The information to be transmitted is brought into a suitable form for transmission via the standard information transmission lines. Furthermore, the information received via the standard information transmission line is transformed into a form suitable for processing in the standardized operating units (11, 12 to 31).

Abstract: Electronic control apparatuses (11, 12, 13) are provided for a warship having controlling and controlled units with a bedding (foundation) plane, with the control apparatuses forming control signals for the associated controlled units from the crude information coming from the associated controlling units. The electronic control apparatuses (11, 12, 13) have correction stages for each associated controlled unit for modifying the formed control signals in dependence on the bedding error of the associated controlled unit and/or of the controlling unit (19, 20, 21) which supplies the control apparatus (11, 12, 13). Furthermore, memories are provided for storing the bedding error values in dependence on the horizontal angular position of the controlled unit and/or of the controlling unit (FIG. 1).

Abstract: A ship's derrick can be swiveled and tripped up by means of a goose-neck pin-bearing and one or more topping lift tackles. Its tackle is fastened to a crab which can be moved in the longitudinal direction of the derrick by means of a tackle line. In the case of a heavy cargo derrick, the tackle line between the derrick brace and the crab comprises a multi-part tackle which may be cut and dimensioned similar to the load tackle and which is provided with two hauling parts, the arrangement being such that the topping lift tackles act on the crab.

Abstract: An underwater pipe laying vessel for laying a continuous pipeline, applying what is known as the "J" shape pipe laying method, uses shorter lengths of pipeline welded together on board end to end to form pipe assemblies; the pipe assemblies are stored and subsequently transported to a pipe laying boom unit which guides pipe assemblies to be welded end to end to a pipeline which is already in the "process of laying" under the vessel. The pipe laying boom is located substantially in the center of the vessel and is swivelled about a horizontal axis which is perpendicular to the length of the vessel; the boom includes a flash butt welder and an underlying jacketing-unit for suitably treating a welded surface of the pipeline to prevent subsequent corrosion; a pipeline section guide and pipeline section support located under the jacketing-unit assist in supporting and guiding the treated pipeline for proper positioning.

Abstract: A steam extraction turbine including a steam extraction section from which steam may be extracted from the turbine for external use prior to the low pressure section of the turbine. In order to avoid overheating of the low pressure section when the amount of extracted steam is high, there is provided a cooling steam stage immediately upstream of the low pressure section through which steam is applied to the low pressure section to prevent overheating. The cooling steam stage includes blades of the rotor and thus permits energy to be extracted from the steam applied to prevent overheating of the low pressure section, the extracted energy being used to drive the turbine thereby increasing turbine efficiency.

Abstract: A split topping lift gear with a boom swingable through a plane between a pair of posts includes the boom and a jib hingedly connected to the upper end of the boom. The jib is elongated, with its hinged connection to the boom located between its ends. A relieving cargo tackle is connected to each end of the jib. One cargo tackle can be connected to the boom socket while the other is free to carry a load. The jib is adjustably positionable about its hinged connection in a vertical plane.

Abstract: Apparatus for producing cylindrical bodies by building-up weld material thereon utilizing a submerged arc welding process includes a plurality of welding heads movable along the cylindrical body parallel to the axis thereof, and devices for supplying welding wire and welding powder to respective welding heads of the apparatus. A welding head carriage and a separate supply carriage supporting, respectively, each of the welding heads and the welding wire and powder supply units are provided, and drive mechanisms are also provided separately for each welding head carriage and supply unit carriage.

Abstract: In a ship an opening is provided in the bow for skimming an oil/water mixture off the surface of the body of the water on which the ship travels. A ramp located within the ship slopes upwardly from the bow toward the stern and conveys the mixture to a location over a collection tank. The end of the ramp closer to the stern is formed by an overflow flap pivotally connected to the fore part of the ramp. Sensing elements check various factors affecting flow into the collecting tank and control an adjusting device which pivotally positions the overflow flap relative to the remainder of the ramp.

Abstract: In a summing gear assembly, driving power is transmitted from a power source having several outputs, such as a steam turbine unit including a high pressure turbine, an intermediate pressure turbine, and a low pressure turbine, through input pinions and power drive lines to a common power take-off gear. Each input pinion is connected to a separate power output and is in meshed engagement with two adjacent power drive lines, there is one more power drive line than there are input pinions. The power drive lines are disposed in parallel laterally spaced relation and each has an intermediate pinion engaged with the power take-off gear.

Abstract: In winding a continuous strip of sheet metal having chamfered edges into a helical seam pipe, the chamfered edges define an inside seam and an outside seam in the pipe. Initially, after forming the pipe, a tack weld is formed in the outside seam and then a finish weld is provided in the inside seam. Next, the pipe is cut into lengths and finally a finish weld is made in the previously tack welded outside seam. The cross sectional area of the inside seam is kept to a minimum and though different thicknesses of strip can be used for forming the pipe, the cross sectional area of the inside seam is maintained a constant over the range of strip thicknesses used to assure that the inside seam is finish welded in as short a time as possible with the pipe moving axially at the highest possible speed.

Abstract: The weapons units of a warship may be formed in remotely prefabricated modular sub-assemblies which are capable of interchangeable mounting at different locations on the warship by an arrangement which includes a standardized adapter device structurally formed as part of the warship and defining the opening of a compartment into which the modular sub-assembly of the weapons unit is mounted. The weapons unit modular sub-assembly consists of a container within which the weapons unit is prefabricated. The weapons unit container and the adapter unit on the warship are both formed with mating structural parts having standardized sizes and configurations in order to enable interchangeability of the sub-assemblies. Although each sub-assembly may be formed with a different weapons unit, the container for the weapons unit of each sub-assembly is uniformly structured in a standardized manner complementing the adapter unit on the warship.

Abstract: In forming a metal plate or the like into a helical seam pipe, the plate is deformed by bending rolls each made up of individual forming rolls. The forming rolls are exposed to shearing forces if the plate varies its direction of travel toward the forming rolls. To prevent the continued presence of shearing forces, the forming rolls are pivotally mounted on a support which is displaceably guided within a holder and an adjusting mechanism is connected to the support and the forming rolls to adjust the setting angle of the forming rolls in accordance with the direction of travel of the plate toward the forming rolls.