Abstract: A warship has a unit seating extending around an opening in a ship's deck with a platform mounted in the seating and levelled relative to the main scantling plane of said warship, and a functional unit installation, e.g., a weapon or a navigational apparatus, on the platform. A container carried beneath the platform, accommodates a part of the functional unit installation. Vertically resiliently acting supports carry at least a part of the weight of the platform, the container and the installation and allow limited horizontal movement of the container relative to the supports.

Abstract: In a multiple-hulled marine craft an opening (313) which can be closed in air-tight and water-tight manner by pivotable flaps (314) is located in the transverse deck (312) beneath the connection structure between the two floats (311) (FIG. 2).

Abstract: An apparatus for a ship's propeller, whose fins, which may be pitch-controlled, are provided in the vicinity of the leading edges with air openings. These air openings are fed via air ducts in each propeller fin by a compressed air source located in the ship. The compressed air is fed from the ship's compressor to the propeller by an air coupling which is protected by a split covering sleeve. The coupling is fed by an air feed line laid outside the ship's hull along the stern post or propeller strut. The air feed line penetrates the covering sleeve between the propeller strut and the propeller. The air line is connected to a two-piece inlet feed fitting. Air is fed from the inlet fitting through a two-piece bypass ring which rotates with the propeller shaft, to a two-piece air discharge fitting connected to the propeller hub.

Abstract: A freely programmable multi-axis articulated manipulating arm unit having arm elements disposed along different longitudinal axes especially for use as an industrial robot is provided with a drive system and a brake system for each of individual rotational or translational axes; the drive systems belonging to the rotational or translational axes of the manipulating arm unit are each provided with a hydraulically actuated locking brake which functions in a play-free manner, when in the operating braking state. Each of these brakes fixes adjacent arm-elements with respect to each other. Said adjacent arm elements are able to move about the rotational axes relative to each other when the said brakes are not operative. The arm elements are fixed directly in every position, that is, without the use of intermediate elements.

Abstract: A method and apparatus for the performance testing of a ship's engine while the ship is moored in a harbor, and even when the ship is being refitted or before the ship is completely built. To facilitate stationary testing of the ship's engine, a zero-thrust controllable-pitch propeller substitute, designed in the manner of a water-braking device, is installed. The propeller substitute attaches to the propeller shaft of the ship and replaces the regular controllable-pitch propeller during testing. The water-braking device has controllable a drag which can be adjusted to correspond to the engine output, and is preferably designed to accept the controls and fittings of the regular propeller. The water-braking device produces substantially zero thrust on the propeller shaft and the hull of the ship at all speeds of operation thereof, thereby producing far less currents at the site of the mooring of the ship during testing than the prior art methods.

Abstract: An engine installation for ships with a prefabricated box-like engine module container with an engine and a transmission installed therewithin. The module encloses the engine and the transmission, and has a shaft installation for connection to a main propeller of the ship. The prefabricated module is suspended from an upper portion thereof by force bearing members rigidly mounted on the ship. Between the module and torque transmission equipment rigidly mounted on the hull, there is an axial-radial alignment equalization torque transmitting link.

Abstract: The invention concerns a ship's door or ship's frame arrangement which is provided with a door frame and a removable door leaf mounted in it. Peripherally mounted on one of the mutually facing peripheral edges of the frame and the door leaf and serving as a dynamic seal is an elastic tube which is connected to a pressure medium source and which, when pressurized, presses between the peripheral edges of the frame and the door leaf, thereby forming a seal between them and, when depressurized, lifts away from the opposite peripheral edges to form an annular clearance. In addition to the dynamic seal, a peripheral static seal is provided which serves as a spray-guard.

Abstract: An apparatus for moving aircraft on flat surfaces with the aid of cables which, on the one hand, act on the aircraft and, on the other hand, pass to winch drums via guide pulleys which are in part displaceable is characterized in that, for moving aircraft, in particular helicopters, multi-drum winches are provided on a ship's deck with the winch drums being drivable via differential transmissions by two motors which are controllable by means of a joystick operable in the sense of the intended movement of the aircraft.

Abstract: A maritime structure such as a ship, and in particular a warship, has a plurality of vertically spaced decks which bear foundation seatings, hatches and/or assembly openings; in the plane of each deck, longitudinal parallel support elements, and lateral support elements are arranged in the form of a unit grid, which has longitudinal and transverse grid lines forming a matrix of grid units. The longitudinal grid lines, as well as the transverse grid lines are located at predetermined uniform spacing, the spacing of the lateral grid lines being perferably twice the spacing of longitudinal grid lines. The load bearing longitudinal and transverse beams and girders of base support units and the functional units, pallets, support frames, modules, deck houses, etc., as well as the hatches, assembly openings and access openings are incorporated into the unit grid; in other words, said girders and beams are disposed to coincide with said longitudinal and transverse grid lines.

Abstract: Apparatus for adjusting and locking the pitch of a variable pitch propeller. Within a propeller shaft, a hydraulic piston is provided which drives a rod, a plate, and levers to rotate the propeller blades in, and with respect to, the hub of the propeller. The root of the propeller within the hub has a conical portion which has a mating conical ring thereabout. This conical ring is engaged and locked into place with the conical portion of the propeller root and the propeller hub by hydraulic oil pressure, once the optimum pitch of the propeller blades is determined.

Abstract: A relatively permanent anchoring arrangement for a decommissioned tanker which is connected to an undersea flexible transfer hose, uses a spreader beam suspended under the tanker by a plurality of mooring hawsers which are guided on the hull of the tanker. A support column structure having a vertical axis is suspended from and supported by the spreader beam. The support column structure comprises a diver's chamber which includes a massive peripheral bearing which enables relative rotary movement between the diver's chamber and the support column. The diver's chamber is anchored and fastened using a plurality of anchor chains. The diver's chamber can be evacuated and made dry for a diver to enter for purposes of bearing inspection maintenance. A fluid proof rotary joint housed in the diver's chamber is provided for connecting an undersea flexible transfer hose to a rigid transfer tube emerging from the tanker at the bottom thereof. Anchoring in high seas is effective by this arrangement.

Abstract: On a ship, the longitudinal beams and the framework girders of different decks or of the inside bottom are arranged in identical vertical planes. In at least some of the rectangles defined by the longitudinal beams and the framework girders, there are access openings located vertically above one another. The openings in a vertical group are practically all the same size and aligned with one another vertically. Between corresponding junction points of the longitudinal beams and the framework girders above one another, vertical props running intercostally are located at the corners of each access opening. At least the third and subsequent access openings from the top are closed, preferably in a water-tight manner, by identically-sized removable access covers having at least two pieces each.

Abstract: An anchor system includes an anchor line having a first section proximate a floating structure, a second section proximate the anchoring ground or sea bed and an intermediate section comprising a sinker cable. The first and second sections are anchor chain comprising alternately disposed single link members and double link members pivotably interconnected with transverse bolts. The bolts are welded to the double link members and gaskets about the bolts are provided between the single and double link members to protect the portion of the bolt about which the single link member pivots. The anchor chain, proximate the floating structure, preferably includes anodes disposed to prevent corrosion. In another embodiment, the anchor chain is galvanized to inhibit corrosion.

Abstract: An anchoring system for a converted tanker, including a fluid transfer line extending from the sea bed to the tanker, uses a vertical hollow shaft which is integrated into the stern portion of the tanker. A buoy, which is generally annular, is located under the vertical hollow shaft and anchored. Attached to the buoy, vertically above the buoy, is a hollow columnar superstructure which is disposed coaxially with the hollow shaft and is unaffected by weather. The superstructure is supported and located in vertical and horizontal directions coaxially inside of the hollow shaft by top and bottom pivot bearings which may be lubricated by sea water. The anchoring per se of the tanker takes place through the hollow superstructure member and the anchored buoy. The shaft and superstructure can be evacuated dry without any sea water, for maintenance personnel to inspect or replace the bearings and for completing repairs to the transfer line which is disposed within the hollow superstructure.

Abstract: A method and apparatus are provided for automatically cutting and retrieving for inspection a sample length of coiled material from an inner tab region of a wound coil using a machine having a motorized roller apparatus supporting and driving the wound coil. A machining arm including a cutter is introduced within the wound coil for cutting a given radial thickness of the coiled material in the inner tab region. The machining arm is withdrawn, and a specimen extraction arm having substantially "C"-shaped elements is introduced within the wound coil. The "C"-shaped elements may each have a pointed limb, which in use serves to pry out the sample length of coiled material in the inner tab region, and break the sample length loose from the wound coil in the region of the cut provided by the cutter. The extraction arm is withdrawn when the retrieving elements bring the sample length of coiled material out for inspection.

Abstract: An exhaust gas system for a ship having at least one internal combustion engine for moving the ship through water, which exhaust gas system includes a first gas passage for conducting engine exhaust gases below the water surface and a second gas passage for conducting the engine exhaust gases above the water surface, and including a control valve responsive to the position of the ship in the water for determining the selection of the first gas passage or the second gas passage to conduct those exhaust gases, with a cooling member provided for the gases conducted by the first passage and having openings to the water for aspirating or passing the water through the cooling member when the ship moves through the water.

Abstract: Rectangular base mounting-platform structures for removable combat-equipment, for example, guns and other support units like radar which are mounted on rectangular openings on a ship-deck, are provided with interchangeability. In order to achieve interchangeability of units which have mounting-platform structures of unequal size, the platform rectangular dimensions as well as the dimensions of the corresponding rectangular openings are so designed that the base length of the smallest unit is made equal to the width of the next bigger rectangle and so forth; in order to mount the smallest rectangular base on the immediate next larger rectangular opening, the length of the smallest rectangular base is aligned with the width of the larger opening; mounting is so done as to leave an open space towards only one side, leaving only one longer side of the smallest rectangular base unsupported within the area of the mounting opening.

Abstract: In each drive direction of a degree of freedom, or in each of the drive directions of several degrees of freedom, the industrial robot is provided with an absolute measured value transmitter or transducer and a relative measured value transmitter which give the instantaneous position of the drives. Should the signal put out by the absolute measured value transmitter not fall within a preselected range of a first window circuit, the robot will be switched off via the control because the robot is moving in a unpermitted working region. The reference position can be chosen with the aid of a second window circuit whose window lies within the range of the first window circuit.

Abstract: In cargo handling apparatus with a cargo boom which can be swung between two kingposts, in which the cargo boom is provided at its upper end with an extension 1 which projects beyond the fittings of the main hoist, with a block fitting 2 for an auxiliary hoist being attached to the extension and with the auxiliary hoist being so rotatably arranged around the cargo boom axis that the lower edge of the auxiliary hoist cargo hook is free of the fittings of the main hoist with an approximately vertical position of the cargo boom, a block fitting 12 connected, fixedly or for only limited rotational movement, by means of a second extension 11 of the cargo boom with the block fitting of the first auxiliary hoist and is so arranged that, with the lower cargo block 15 in the raised position and with an approximately vertical position of the cargo boom, the lower side of the cargo hook of the second auxiliary hoist is also free of the block fitting of the first auxiliary hoist.

Abstract: The invention provides an improved anchor cable and weight system in which at least two separate weights are interconnected with a length of cable for the purpose of securing a floating structure to an anchoring ground. Each weight has a predetermined cross-sectional dimension and a spindle axially disposed therein for securing an anchor cable thereto. The anchor cable interconnecting two adjacent weights has a length selected to be no greater than the predetermined cross-sectional dimension of the weight. Additionally, two alternative embodiments of the anchor weight are also described herein.