Abstract: Spring-loaded linkage contained in a housing attached to the control stick of an aircraft. One member of the linkage is an arm having an end projecting from the housing and forming a hand grip through which the pilot controls the aircraft. The linkage provides a resisting force on the arm which prevents it from rotating relative to the control stick during normal flight maneuvers. However, when the control stick is pulled to full aft stop and additional pull equal to the spring break-out force is applied, the resisting force suddenly decreases, and the arm and grip rotate aft a discrete displacement relative to the control stick. This displacement actuates a g-limiter override which permits the aircraft to exceed set limits on its normal acceleration. The discrete displacement also provides the pilot with a tactile signal that the override has been actuated. The g-limiter override condition can be maintained by a pull on the grip substantially less than the spring break-out force.

Abstract: A lifesaving craft comprises a flat-bottomed elongate buoyant structure 91) which on its lower side is free from projections and on its upper side has a number of grab means (5, 17, 20) and means for keeping a person in distress on the craft. At least at one of its two opposite ends (11, 12) the craft has to projections (13, 13') extending in prolongation of the sides of the craft, between which projections a preferably gently curved recess (14) is provided to receive and center the person in distress when he is taken up on the craft.

Abstract: A building for accomodating turbines and a generator in a power plant is equipped with overhead traveling cranes and constructed so that the overhead traveling cranes are arranged to travel in parallel with each other in a direction perpendicular to an axis of the turbines and the generator. The crane rails for supporting the overhead traveling cranes are arranged in parallel with one another in a direction perpendicular to the axis of the turbine and generator.

Abstract: In a control method of a crane in which a parcel suspended by a rope is laterally transported by a trolley, the accelerating time and decelerating time of the trolley are obtained on the basis of the mass of trolley, mass of suspended parcel including a suspending device, and rope length, and when the trolley is started, the accelerating force which is necessary to allow the velocity of trolley to become an objective velocity for the accelerating time is instructed, and after this accelerating time has elapsed, the trolley is allowed to uniformly run at the objective velocity. During the constant speed running, the stop position of the trolley is predicted on the basis of the decelerating time. When the trolley reaches the start position of the decelerating operation such that the trolley can be stopped at the objective position, the decelerating force which is necessary to reduce the trolley velocity to zero for the decelerating time is instructed.

Abstract: A single overhead pneumatic tube system employs a large rectangular tube, a pair of overhead mounted blowers and a large rectangular captive carrier having a pair of oppositely disposed sliding closures. The carrier is transported between two terminals, one terminal having a drawer-like carrier receiver which slides one of the carrier closures to one side as the receiver opens for access within the carrier by a teller. The other terminal includes a carrier receiver whose front swings open and tilts the carrier outwardly whereupon the other carrier closure is slid to one side for access within the carrier by a customer.

Abstract: Process and apparatus for pneumatic or hydraulic transport of bulk material in a conveying direction through a pipeline by means of over or underpressure, in which components are provided for monitoring the pressure prevailing at a plurality of successive points along the pipeline, providing a plurality of sources of a pure gas or liquid each at a pressure corresponding to the pressure prevailing at an associated point along the pipeline, and supplying the pure gas or liquid from each source to the point along the pipeline which succeeds, in the conveying direction, the associated point for that source, while preventing any fluid flow from the pipeline to each source.

Abstract: A drain assembly for aircraft which is operable to provide a drainage outflow course for discharge of cabin collecting liquids in an aircraft to the outside environment when the aircraft is at ground level or operating at altitudes up to a certain height but which is operable to seal tight that drainage course when the aircraft is operating above that certain height so that cabin depressurization cannot occur through the drainage course.

Abstract: This invention relates to a mechanism for automatically actuating a rescue device upon opening of a panel obturating an exit and bearing said rescue device, mechanism comprising a control bar connected to said rescue device and adapted, under the action of a voluntary actuating member, to be rendered fast either with said panel or with the periphery of said exit, with the result that opening of said panel does not bring about, or brings about, respectively, actuation of said rescue device via said control bar. According to the invention, this mechanism is characterized in that said control bar is fast in displacement with a mobile system controlled by said voluntary actuating member in order to subject said bar to a movement of translation parallel to itself, of direction at least substantially at right angles to said panel. The invention is more particularly applicable to the automatic control of escape slides, slide/rafts or the like in the event of an emergency.

Abstract: Fire sprinkler head suitable for mounting in a concealed location in the ceiling in a residential dwelling which provides quick and automatic response in the event of a fire. The valve assembly in the sprinkler head is biased to the open mode and is maintained in the closed mode against a positive force, provided by at least the pressurized fire extinguishing fluid, tending to move the valve assembly to the open mode, by a valve closure unit which is separable into its two sections at the onset of a fire.

Abstract: A ballast arrangement includes a number of tanks and a pump connected to a sea-chest and having a discharge conduit extending to a level above the top-most tank. A distribution conduit extends to the various tanks and an overflow pipe is connected to the discharge conduit and reaches to a further level, above the first mentioned level, where also an evacuation pipe is connected. The further level will determine the static pressure which may act in any of the associated tanks. The tanks may be connected to the suction side of the pump through by-pass conduits, and a two-way valve is designed so the pump can communicate only with either the sea-chest or with the by-pass conduits.

Abstract: A kayak 10 having at least one hull section 16, 18 whose volume may be adjusted to enable said hull section to be submerged by a boater for water acrobatics comprises spaced longitudinal frames 22, 24 connected to the hull section. The spacing between the frames may be varied to proscribe the configuration of the hull section over a substantial part or short segment of its length. The frames 22, 24 may be interconnected by flexible cabling 30, 32 or by a mechanical scissor linkage 48 to change this spacing and adjust the volume. Supportive framework (70, 72) is provided to prevent total collapse of said hull sections.

Abstract: A novel exhaust system for both conducting engine exhaust gases away from and aft of the personnel occupied portion of a marine vessel and protecting the sides of the hull of the vessel from damages thereto during docking or other "working" maneuvers of the vessel is provided.

Abstract: An exhaust muffler for a marine engine comprises a first vertically oriented tubular member having a lower end sealingly extended through the bottom of a main body chamber and an upper end extending upwardly through the top of the chamber. A second tubular member surrounds and is spaced from the first tubular member for forming a passage therebetween, and has its upper end sealingly extended through the top of the chamber and its lower end extending to a point below two chamber inlets, yet spaced from the bottom of the chamber. A cap seals the upper end of the second tubular member to invert upwardly flowing exhaust gases and cooling fluid within the passage between the first and second tubular members downwardly into the first tubular member for discharge from the muffler.

Abstract: A lightweight boom supported by a rotatable jib of a tower crane for introducing flowable concrete mix to form systems has a concrete conveying conduit which functions also as a structural member of the boom, in order that the overall weight of the latter is minimized. The elongated boom has a triangular configuration in transverse cross-section, with two parallel, co-planar, spaced upper members and a hollow, concrete conveying bottom member that is generally parallel to the two upper members and spaced below the same. Horizontally extending brace members interconnect the two upper members, and spacer bars depending from the two upper members are secured to the bottom member.

Abstract: A load-out construction device (10) is provided for conveying debris from a building (12) having a roof (14), floors and an exterior wall (16). The load-out construction device (10) includes a hopper (18). The load-out construction device (10) further includes a suspension system (30) including a pair of hooks (32) which are mounted to end walls (20, 22) of the hopper (18). An end (32a) of each hook (32) contacts the roof (14) or a floor of the building (12) and an end (32b) of each hook (32) contacts the exterior wall (16) of the building (12).

Abstract: A method of attaching a blister to the shell of a ship such as an aircraft carrier in a dry dock. The method comprises providing rails on the bottom of the dry dock along the dry dock side where the blister is to be attached to the ship shell such that the rails extend in the longitudinal direction of the dry dock, placing the blister member, with a guide member thereon, on a truck and moving the truck, with the blister member thereon, along the rails to a position where the blister block is to be fixed to the ship shell and, while engaging the guide member with the side of the dry dock, raising the blister member so as to engage the ship shell and fixing the raised blister member to the ship shell.

Abstract: A temperature control device for a jet aircraft engine installation that includes a jet engine and a nacelle for supporting and enclosing the jet engine. The jet engine has a primary exhaust nozzle from which the engine produces a rearwardly extending primary exhaust plume of hot gases. The primary exhaust plume has a centerline and a generally cylindrical shape about its centerline. Each engine installation includes a nacelle-associated structure, such as a support strut, that extends in a generally fore and aft direction above the centerline of the primary exhaust plume. The temperature control device comprises a deflector formed at the lowermost surface of the nacelle-associated structure. The deflector includes a sheet-like lower surface having a lateral extent greater than the lateral extent of the nacelle-associated structure immediately above the deflector, and extends longitudinally aft of the primary exhaust nozzle.

Abstract: A flight has a wing with an elongated support rod embedded in said wing along a fixed edge thereof. To flight or wing has two free ends that are not affixed to said support rod. A metal cable is embedded in each of the free ends and extends from the free ends to the support rod. The metal cable in affixed to the support rod to reduce the possibility of the free ends breaking off from the remainder of the wing.

Abstract: A step device for mounting on the transom platform of a boat that may be moved between a use position wherein a step thereof is immersed in the water in which the boat floats and a storage position wherein the step is located above the platform out of the water formed of a step unit, a pair of bracket units and a pair of pin members. The step unit when in the use position permits a person to climb out of the water and onto the platform without the step making any appreciable movement relative to the platform during such climb because of its unique construction which includes a pair of support members each having an L-shaped portion that includes a leg section and a step section joined normally to the leg section via an arcuate section, a lateral portion that extends integrally and normally from the top end of the L-shaped portion, and an abutment portion that extends integrally from such lateral portion in the direction of the step section spaced apart from and parallel to the leg section.

Abstract: On launch of a lifecraft from a marine platform or other vessel, an electrically powered tug connected to the lifecraft by stowed cable aligns the lifecraft away from the platform and tows it away from the platform in a predetermined attitude and track. In this way, the lifecraft is controlled in the hazardous initial period between launch and start of its own powered movement. The tug is advantageously stowed and launched bows-out and has an autopilot responsive to deviation of the towline from the tug fore-and-aft line to correct the tug helm so that the tug not only follows a predetermined compass heading but follows a predetermined track relative to the lifecraft. In a preferred version of the tug a portion of the towline is stored between a pair of sheave blocks biased towards one another to bring about towline retraction so that the towline is paid out as the tug is lowered and retracts into the tug during initial movement of the lifecraft with the tug still in the water and acting as a sea anchor.