Abstract: A device for guiding the flow of floating objects. The device is connected to a hull of the floating object and, depending on the flow, feeds hydrodynamic forces into the hull. The device shows a main flow body which is designed in a more flat-topped manner in the area of a leading head than in the area of a trailing end. In the flow direction, a secondary body is placed behind the trailing end, which secondary body shows a rounded cross-sectional contour. The secondary body is equipped with a flow-through recess. Furthermore, the secondary body is, regarding an axis of revolution that runs at an angle to the flow direction, guided in an adjustable manner.

Abstract: A seal arrangement for controlling any large bearing clearance in the vicinity of a propeller shaft, such as for a propeller drive system for ships with two concentric propeller shafts rotating in opposite directions. The seal arrangement has a housing ring for supporting the sealing lips and a supporting ring for supporting the housing ring and defining a clearance therebetween. This clearance can be sealed and maintained by using elastic ring walls disposed between and interconnecting the housing to the supporting ring, so that compensation can be achieved for changes in the clearance during rotation of the propeller shaft.

Abstract: On a body, for example a stabilizer fin or a rudder blade on ships or the keel fin on sailboats with a keel, which is fastened to a support body, preferably a ship's hull, so that it projects outward, several ribs are fastened so that they project on the exposed end of the body. These ribs are located at some distance from one another and are parallel to the plane of symmetry of the body. The length of the ribs is approximately 1/10 to 1/20 of the length of the body, which eliminates or reduces turbulence which occurs at the end of the wing like structure.

Abstract: In handling machines, in particular punching machines, operating in discrete steps, for sheets of paper or similar objects, a warping, waving or wrinkling of the sheets occurs during the deceleration movements of the sheets ahead of the delivery station. These deformations are smoothed by the hold-down device according to the invention, which consists of a circulating perforated endless belt, to which an underpressure is applied from below. There is also synchronization between the feed movement of the sheets and the movement of the endless belt.

Abstract: The invention employs the principle of the prior art for cooling a heated body by means of so-called heat pipes, with seal devices for rotating shafts, in particular for a ship's propeller shaft. According to this principle, an externally closed chamber extending in the longitudinal direction and filled with a liquid working fluid extends on one end into the body to be cooled, and on the other end into a cold medium, whereby a constant circulation takes place, so that the work fluid is evaporated in the hot portion of the chamber, the vapor flows into the cold portion of the chamber, condenses there, and the condensate is returned to the hot portion by way of a capillary structure (FIG. 1 ).

Abstract: A sealing apparatus for rotating shafts, in particular a stern tube seal for a propeller shaft of a ship with or without shaft bushings, with aligned gaskets resting on the shaft and located in a stationary support system, preferably of an axial face seal, and with a backup seal located in the support system, which is designed as a gland seal with soft packings, and a gland which can be moved in the axial direction in a guide body connected to the support system, whereby between the guide body and the gland there is a cavity system, into which, when there is a failure of the main seal, a hydraulic or pneumatic pressure medium can be introduced, which activates the backup seal, is characterized by the fact that the cavity system consists of a number of individual piston-cylinder units uniformly distributed over a circle which is concentric with the shaft axis, corresponding to each of which there is a branch current of the hydraulic or pneumatic pressure medium.

Abstract: In a hydraulic system for roll stabilization of a vessel by motions of the rudder an arrangement for supplying a hydraulic fluid to the rudder engine comprises a constant delivery pump, a pressure accumulator, and a valve gear unit. While the valve is opened the hydraulic fluid is delivered by the pump and the accumulator, and when the valve is closed the pump fills up the accumulator to maximum working pressure. The valve gear unit comprises a proportional control valve for controlling period, direction and flow rate of the hydraulic fluid to the steering engine and a load compensation device for controlling the returning flow returning via the proportional control valve for compensating for irregular loads from the waves or the sea against the rudder.

Abstract: Ship's hull, characterized by the fact that the hull below the construction water line (C.W.L.) consists of a bulb-shaped displacement body extending approximately over the entire length of the ship, which is slim in the forebody, then becomes uniformly thicker toward the stern over approximately 2/3 of the ship's length, and then tapers toward a large central propeller (P), and on top of which there is a vessel with lines in the nature of the V-shaped frame, which makes a transition toward the stern into a tunnel, which covers the bulb-shaped body and propeller so that above the bulb, there is a sharply concave, trough-shaped form.

Abstract: A ship, with several decks and several areas located one behind the other in the longitudinal direction of the ship, which areas are separated by bulkheads. Each of these has several areas, each supplied by its own air delivery and discharge ducts from at least one ventilation system. At least some of the areas separated by bulkheads are designed as separate ventilation areas, each of which has its own ventilation system and whose air delivery and discharge ducts connected to this ventilation system are not laid through the adjacent bulkheads into adjacent separate ventilation regions, but are laid exclusively within its separate ventilation region.

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: 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.