Abstract: A trim and tilt mechanism angularly moves an outboard engine assembly into a desired trimmed position and also into a tilted position above the surface of the water. The outboard engine assembly is detachably mounted on the stern of a boat through a transom bracket and a swivel bracket coupled to the transom bracket for vertical angular movement relative to the transom bracket about a horizontal axis. The trim and tilt mechanism has a hydraulic cylinder unit including a casing which has one end pivotally coupled to the transom bracket and a piston rod which has one end pivotally coupled to the swivel bracket and which is reciprocally movable in the casing. Working oil to be supplied to and discharged from the casing is stored in a main tank and an auxiliary tank which are disposed in diametrically opposite relation to each other across the casing. The auxiliary tank is substantially cylindrical in shape and has a circular opening defined in its upper end and normally closed by an end cap.

Abstract: A jet propulsion unit for a small watercraft that incorporates a mechanism for actuating the reverse thrust bucket through an intermediate lever so as to permit a flexible cable to be employed that lies closely above the jet propulsion unit. The actuating device is constructed so as to provide self-locking of the reverse thrust bucket in at least one of its positions. Various linkage arrangements for achieving the interrelationship are disclosed.

Abstract: A seat for an inflatable boat having an outboard motor, comprising a plurality of telescoping sections movable with respect to each other to permit adjustment of the overall width of the seat, one of said sections comprising a hollow container for storing fuel for the boat's motor.

Abstract: In a container crane installation, swinging movements during the lowering of the spreader are suppressed in that the spreader, after the reaching of the ideal position of the hoist cable carrier in each case, is brought into swing-damping contact with the crane carriage. According to a further form of embodiment the position of the spreader in relation to the standing position to be approached is ascertained by a remote recognition system fitted on the spreader.

Abstract: A marine propulsion device comprising a lower unit including a gearcase, a propeller shaft mounted in the gearcase for rotation about a generally horizontal fore and aft axis and having an axially extending forwardly opening bore, a shift shaft including a rearward portion located in the bore, a forward portion, and structure for connecting the forward portion to the rearward portion to effect common axial movement of the forward and rearward portions in both directions along the fore and aft axis, a shift lever supported by the lower unit for rotary movement about a horizontal axis transverse to the fore and aft axis, being adapted to be connected to a vertically shiftable link to thereby rock the lever about the transverse horizontal axis, and including a leg, and structure for connecting the leg to the forward portion of the shift shaft to effect movement of the forward portion of the shift shaft in both directions along the fore and aft axis in response to rotary shift lever movement, one of the structure

Abstract: A hydraulic arrangement for controlling tilt and trim of an outboard drive. The hydraulic arrangement comprises a single cylinder assembly having a single bore inside wherein an upper portion of the bore has a relatively small diameter and a lower portion of the bore has a larger diameter. Two separate pistons, one in each bore portion, are supported for reciprocation. The smaller diameter piston has a piston rod that is directly connected to an element of the outboard drive, while the opposite end of the cylinder assembly housing is connected to an element affixed to an associated watercraft, so as to insure against any undesirable noise or undue wear in the system, and to afford a compact assembly.

Abstract: A storage section for storing a video monitoring equipment for an airliner and the video monitoring equipment which moves to a visible position are connected by two long cylindrical springs. One of the springs is urged in the direction of the storage section of the airframe. The other spring is made of a shape-memory alloy on which a specific shape is memorized in heated condition. When the second spring is heated and takes the specific shape, the video monitoring equipment is moved to the visible position together with the move of the second spring going against the urging force of the first spring. When the heating of the second spring is stopped, the video monitoring equipment is moved to the storage section along with the movement of the first spring by the urging force of the first spring.

Abstract: A diving boat wherein an air tank, water tank and navigating apparatus are provided, air within the air tank is fed into the watertight boat body and excess air produced thereby is discharged into water outside the boat body through an automatic balance type pressure regulating valve so that the air pressure within the boat body may be kept substantially the same as the water pressure outside the boat body.

Abstract: An apparatus for temporarily sealing a hole in the hull of a boat comprising an inflatable seal portion disposed adjacent the outer surface of the hull, means for inflating said seal portion and a structural support portion disposed adjacent the inner surface of the hull to maintain said seal portion in intimate contact with the hull of the ship to prevent the flow of water therethrough.

Abstract: A launch vehicle having one or more high thrust solid propellant boosters and two or more liquid propellant stages all configured to burn in parallel and having an interstage propellant manifolding system between the parallel liquid burning stages. Preferably, existing U.S. launch vehicle stages may be employed as the parallel burning stages. An additional liquid stage burning in series with the lower stages may also be employed. The interstage propellant manifolding between the liquid burning stages allows the central vehicle core to be stabilized against high altitude wind loads and further provides increased performance to the launch vehicle. Additionally, the interstage propellant transfer manifold is equipped with a plurality of electromechanical valves to allow reconfiguration of the propellant flow in real time in the event of a stage failure, thereby providing significantly increased vehicle reliability.

Abstract: An aircraft flight control system including model following control laws includes improved logic and algorithms to limit the error between a desired parameter value from the output of a model and an actual parameter value. Such logic is operable to sense the amount of said parameter error and to limit the amount of the error if it exceeds a predetermined value. The difference between the predetermined limit and the actual error is fed back to the model such that the output of the model is adjusted so that the error between the desired and actual parameter values does not exceed the predetermined value.

Abstract: A motion compensation and tension control system (MCATS) for a surface vessel overboarding, umbilical cable supported, submersible payload is provided with a housing containing a pair of spaced parallel guide rods attached to oppositely disposed housing end plates. Two identical carriages, slidably disposed on the pair of guide rods, each include two parallel slide tubes rigidly attached by a cross plate and by an axle, with a plurality of sheaves rotatably supported by each axle. Motion of each carriage as a rigid body along the guide rods is elastically restrained by, either extension or compression springs. The surface vessel umbilical cable is received through an opening in one of the end plates, reeved around the two sets of sheaves, and mechanically connected to the other end plate. Wave induced surface vessel motion is transmitted through the umbilical cable and absorbed, or compensated for, by the spring restrained carriage motion before it reaches the submersible payload.

Abstract: An aerial refueling system includes a reel mounted for rotation about a central axis for winding and unwinding a hose. A sheave is provided to receive the hose as it leaves the reel and to change the direction of the hose so that it trails axially of the reel. The sheave is mounted on a non-rotating carriage which is supported by the reel and moves axially along the reel as the reel rotates.

Abstract: An outboard motor carrier or tote includes at least a pair of spaced apart straps that encircle the motor in planes which are spaced apart from one another and a carrying handle formed from fabric, e.g. nylon webbing that is formed into an endless loop which encircles the straps and extends below an upper portion of each strap. Straps are preferably connected to the loop handle, e.g. by being sewn to it. Each of the straps has a releasable fastener for securing its ends together so that the straps are located in upright, longitudinally spaced apart planes, preferably forward and rearward planes located respectively at the front and rear of the motor. An optional cover encloses the upper aspect of the motor and includes downwardly depending side portions adjacent the left and right sides of the motor. The side portions of the cover are preferably provided with upwardly opening pockets for holding parts, tools and the like. The cover can also be used to support a post which extends upwardly and has a 360.

Abstract: A boatlift including two floatation chambers operably engaged to a boat hull engaging means by a lifting means connected therebetween. The lifting means is adapted to raise and lower the boat hull engaging means with respect to the floatation chambers, which, in turn, is adapted to buoyantly support both the boat hull engaging means and the lifting means. The boat lift may be either connectable to a stationary object such as a dock, pier or seawall, or may be adapted to be trailerable by land vehicle.

Abstract: A vessel (10) has a semi-displacement or semi-planing round bilge hull (11) characterized by low length-to-beam ratio (between about 5.0 to 7.5) and utilizing hydrodynamic lift. The bottom (15) of the hull (11) rises toward the stern (17) and flattens out at the transom (30). Four waterjet propulsion units (26, 27, 28, 29) are mounted at the transom (30 ) with inlets (31) arranged on the hull bottom (15) just forward of the transom (30) in a high pressure area. Water under high pressure is directed to the pumps (32) from the inlets (31). Eight marine gas turbines arranged in pairs (36/37, 38/39, 40/41, 42/43) power the waterjet propulsion units (26, 27, 28, 29) through combined gearboxes (44, 45, 46, 47) and cardan shafts (48, 49, 50, 51).

Abstract: A vessel 1 has a transom 2 carrying a W-shaped (or two V-shaped) frames 3 symmetrically arranged about its median line. Thus varying sizes of outboard motors, mounted over the transom, for example in twos, can find equivalent arms of the frame 3 to abut against and are thus aligned and symmetrically mounted.

Abstract: A power steering system for an outboard motor capable of permitting an electric motor to be driven only when the driving of the electric motor is required and automatically controlling the steering force of a steering wheel depending upon the steering reaction force. The system is so constructed that a steering cable is moved depending upon the rotation of the steering wheel and the movement of the steering cable is detected by means of a steering force sensor, which supplies a signal to a controller. The controller controls the output of the electric motor depending upon the signal.

Abstract: A boat including a hull having a bow end, a raised surface in the bow end, a console supported on the hull for pivotal movement between a lowered position and a raised position, an apparatus for defining a storage compartment extending beneath the console when the console is in the lowered position and extending beneath and the raised surface, and an apparatus for affording access to the storage compartment when the console is in the raised position and for preventing access to the storage compartment when the console is in the lowered position, the apparatus for affording and preventing access including a storage compartment cover supported on the console for movement therewith.

Abstract: Procedure for damping the sway of the load (2) moved by the carriage (1) of a crane, said load being suspended on at least one hoisting rope (3). The damping is achieved by using a discrete time control system whose control interval is varied in accordance with the hoisting rope length (L) while the control parameters remain constant.