Abstract: A device for shipping suspensible piece goods has an elongated trolley which can travel along an overhead rail. A rod is fixed to either longitudinal end of the trolley and depends from the latter. The end of each rod remote from the trolley has an upwardly open hook-shaped portion. A carrier is removably suspended on the hook-shaped portions and has a cutout which allows goods to be suspended from the carrier. Once the carrier has been loaded, the entire shipping device can be placed in a truck for transport as a unit. A downwardly open hook-shaped element projects laterally of the carrier from the hook-shaped portion of each rod. These hook-shaped elements can be used to suspend the shipping device from a bar in the truck. Since the hook-shaped elements are located laterally of the carrier, the shipping device tilts to one side when it is suspended from the bar. The shipping device and its suspended goods then take up less room in the vertical direction thereby increasing the loading capacity of the truck.

Abstract: The invention concerns aircraft propellers of the variable pitch type. Each propeller blade is carried by a trunnion which is rotatably mounted to a common ring. Each trunnion contains a reduction gear set which is driven by a radial shaft. The reduction gear sets multiply the torque applied by the shafts, thus allowing shafts of reduced diameter to be used. The reduced diameter is important when the shafts must pass through a turbine flowpath, and thus be concealed within turbine blades. The reduced diameter shafts can be easily concealed within turbine blades without redesigning and compromising blade aerodynamics.

Abstract: A planar coil construction, especially adapted for use in a force-producing device such as a de-icer, includes first and second sheet-like members, each defined by a continuous electrical conductor having a plurality of turns and first and second ends. The first end of the first conductor defines an electrical input to the coil, while the second end of the second conductor defines an electrical output from the coil. The second end of the first conductor and the first end of the second conductor are electrically connected. The sheet-like members are superimposed such that current flow through adjacent turns of the conductors is in the same direction. Within each sheet-like member, adjacent conductors also have current flow in the same direction. The invention includes a technique for spacing the conductors by means of a dielectric layer, and a technique for encapsulating the sheet-like members.

Abstract: A track circuit retainer clip adapted to be driven on the edge of the base of a rail holds one or a plurality of conductors parallel to and within the rail base edge. The clip comprises a U-shape spring metal clip having a bight portion and upper and lower legs which embrace the rail base edge. The upper leg includes a center spring finger extending from the bight portion which includes two concave side-by-side recesses to hold the conductors against the upper leg. The outer end of the spring finger flares upwardly to facilitate insertion and the lateral edges of the spring finger are bent upwardly to avoid biting into the conductors. The lower leg includes barbs struck from the edge which terminate in truncated biting edges extending substantially parallel to the rail base edge. The line contact transverse the direction of insertion provides ease of insertion and better gripping or holding action without scratching or notching the bottom of the rail.

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: The deicing system includes a plurality of relatively thin, flat coils positioned between an aircraft surface and an outer sheet. If the aircraft surface is electrically conducting such as aluminum, such that eddy currents may be established therein, then the outer sheet is resistant to eddy currents being established therein. An electrically conducting layer may be positioned between the coil and the aircraft surface to improve efficiency. If the aircraft surface is resistant to eddy currents being established therein, then outer sheet is electrically conducting. However, if an electrically conducting layer is positioned between coil and outer sheet, the outer sheet may be made from non-conducting material. A rapidly rising current through the coil will result in a rapid repulsion between the coil and the particular member which is electrically conducting, causing ice to be removed (shattered) from the outer sheet.

Abstract: Aircraft cabin stairs to connect the aircraft fuselage to a parking area surface gave a frame comprising at least two telescoping segments as well as steps located in the region of the frame. An end segment forms part of the frame by means of side stringers which are present at least in certain regions and which are connected in a telescoping manner to side stringers of a main segment. At least one step in the region of the main segment is mounted such that it is free to slide in the direction of the stairs' longitudinal axis.

Abstract: The present invention is a folding protective cover primarily for openings which are generally circular in shape, particularly the air inlet and exhaust ducts of a stopped turbo-engine as used by aircraft. The invention is comprised of a generally circular ring shaped frame which is made up of four arc shaped sections of approximately 90 degrees each. Three hinges are mounted between the sections in such a manner that the frame may be folded into an arc of approximately 90 degrees. Affixed to the outer edge of the frame is a resilient gasket and affixed across the center of the frame is a waterproof fabric panel.

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 controllable lifting rotary wing for an aircraft wherein each rotor blade is of torsionally flexible construction and control may be accomplished by twisting the rotor blades. The root end of each blade is mounted to a central hub by means which allow both beamwise flapping and blade twist. The blade root mounting angle may be either variable or fixed. The blade twists uniformly from this root angle to a variable tip angle. Twist of the rotor blades is accomplished through the mechanism of shear flows. Blade twist angle may be automatically established by a balance of dynamic forces on the blade which cause twist angle to increase as root mounting angle is increased. Alternatively, blade twist angle may be manually controlled also. A unique feature of the torsionally flexible blade is that it is hollow throughout its entire span so it is well suited for ducting gases through the interior of the blade to tip-mounted jet propulsion units if desired.

Abstract: A flutter control system of an aircraft wing comprising an actuator mounted on the aircraft wing to control a control surface, flight control command unit for outputting an actuation command signal for actuating the actuator, wing-displacement measurement unit for measuring an actual displacement of a predetermined point on the wing and outputting an actual displacement signal corresponding to the measured actual displacement, normal-wing-displacement prediction unit for predicting a normal displacement of the wing during normal flight in which no disturbance occurs, on the basis of the actuation command signal and of an information signal representing information about atmospheric density, flight speed and actuation position of the actuator and for outputting a predicted normal displacement signal representing the predicted displacement during the normal flight, disturbance-component estimation unit for receiving the actual displacement signal and the predicted normal displacement signal and for outputting a

Abstract: The invention relates to a landing gear, wherein a connecting plate 12 is joined to a strut tube 5 of a shock strut which is joined to a bearing member 1, and wherein the strut tube 5 houses an inner member 8 which with its terminal end engages the bearing member 1. It is desirable to model a shock strut formed with a deflecting C-member and hydraulic spring system with simple means as authentically as possible. This is achieved in that the strut tube 5 is joined to the bearing member 1 via a spring-action C-member 7 to permit up and down motions while the connecting plate 12 is solidly attached, in that the bearing member 1 is of integral construction with the connecting plate 12, the strut tube 5 and the C-member and in that the inner member is formed as a metal pin 8 which is axially slidable in the strut-tube 5, the metal pin 8 being loaded at its one end by a metal compression coil spring 10 abutting on a fixed part at its far end.

Abstract: A track circuit retainer clip for a running rail adapted to secure a conductor extending perpendicular to the rail around the edge of the base of the rail in close proximity therewith. The clip includes a U-shape spring metal body having upper and lower legs adapted to embrace the edge of the base of the rail. Each leg includes a center section bowed outwardly adapted to embrace the conductor and hold it tightly against the top and bottom of the rail base edge. The legs of the clip include inwardly directed tangs or barbs struck from the edge of the legs, the inwardly projecting tip of each tang being truncated to provide a linear biting edge to engage the top and bottom of the rail base with a line contact extending longitudinally of the rail or normal to the direction of insertion of the clip.

Abstract: Device for the control of the elements of a machine having a stick (6,7) designed to be activated by one hand of an operator and mounted tilting around at least one axis (X--X) transverse to the stick. The stick is associated with at least one position sensor (17) which deliver an electric signal representing the tilting of the stick around said axis on both sides of a neutral position, the electric signal controlling at least one of the elements of the machine by a calculation device (30). The device also includes at least one torque motor (12,13) associated to said axis (X--X) so that the tilting of the stick (6,70 drives a relative rotation between the rotor and the stator of the torque motor and in that the torque motor is fed by the calculation device (30).

Abstract: The removalbe radome cover shown here is suitable for protecting the radome at the nose of a high speed missile before the radar is turned on. An outer layer lies over, but is not bonded to, an inner layer, and is divided into longitudinal sheets by tear lines. When the radar is to be turned on, a pyrotechnic device at the nose of the radome drives a piston-operated cone forward. Knives on the outside of the cone start to tear the tear lines. The cone lifts the sheets from the inner layer. A spreader lies under each sheet and, rotated by the piston, spreads the sheet further from the inner layer. Air catches the sheets and tears then back to the base of the nose cone. A metal strip along the center of each sheet prevents it from disintegrating before being fully torn back, and provides an engaging surface for the spreader. Thus, only the inner layer will be presented to the radar after the radar is turned on.

Abstract: A portable pneumatic conveyor for various bulk materials includes a hopper which supplies the bulk material to a feed tube. The feed tube is provided with a feed auger which advances the bulk material along the feed tube and into a chamber through which a current of air is passed by way of air inlet and air outlet lines connected to that chamber. The bulk material which is deposited within the chamber is fluidized by the air current and carried by the air current through the air line outlet and along the outlet conveying line to a storage site, such as a silo. In order to prevent air blow-back through the feed tube and alongside the auger, the outlet end of the feed tube is provided with a gate which is intended to at least partly close when the flow of bulk material into the chamber slows down or stops.

Abstract: A disconnect tool for use with a plurality of vehicles powered by a source of high voltage electricity and method of disconnecting high voltage equipment, which disconnect tool comprises a disconnect means for moving a coupling between a coupled position and an uncoupled position, an elongated disconnect member of lightweight rigid construction having a non-conductive shaft and a non-conductive coating, including a non-conductive handle, a non-conductive shaft and a non-conductive hook means for engaging the coupling, and including a non-conductive surface layer for preventing high voltage from passing from the transit vehicle to the handles of the user. The method of disconnecting comprises coupling a first vehicle to a second vehicle, mechanically engaging the first coupling means manually grasping an elongated disconnect tool, moving the disconnect lever between a connected position and a disconnected position by pulling the disconnect tool outwardly.

Abstract: A variable air intake includes a movable ramp (2) driven by a carriage (6) that moves linearly on a drive screw (7). To protect the drive screw (7) from hot gases a thermal blind (13) is provided that moves with the carriage (6). The blind (13) is guided and supported by guide means (15, 18, 19) formed integrally with a structural unit (17) housing the drive screw (7), and is tensioned by tensioning means (16, 19).

Abstract: A door and operating apparatus for railway hopper cars includes a door having a first pivot point for rotary attachment to the hopper. A second pivot point is formed on the door and a cross beam is positioned adjacent to the door for movement in a vertical direction. The cross beam has a third pivot point formed thereon and a link arm has one end rotatably attached to the door at the second pivot point and an opposite end rotatably attached to the cross beam at the third pivot point. A screwjack is coupled to vertically move the cross beam in an upward direction for opening the doors and in a downward direction for closing the doors. The doors have an arcuate surface extending generally vertically when in the closed position to reduce the effort required to open the doors when the car is loaded.

Abstract: A laterally stable and self-turning wheel and rail assembly. The curved rolling surfaces of the wheels bear against curved contact surfaces of the rails such that centrifugal force causes lateral translation of the wheels on the rails, thereby increasing the effective rolling radius of an outside rail while decreasing or maintaining the same effective rolling radius of an inner wheel. The altered rolling radius causes the wheels to move along a curved path without slipping or sliding. Flanges are provided adjacent track turnouts so that guide members activated by a vehicle operator may contact the flanges to either maintain the vehicle in the same set of tracks, or switch the vehicle through the turnout onto a new section of track.