Abstract: A plurality of at least two plate or panel-type members are formed with edge portions which hook together to define a key-forming passage therebetween, with tongue-and-groove type interlocks directed laterally from the elements defining both sides of the passage. The passage is filled with initially flowable, solidified key-forming material injected therein under pressure sufficient to cause the injected material to flow along and fill all, or one or more selected portions of the passage. The elements of the panels defining such passage are so formed that the pressurized, injected material tends to expand the passage, and thereby urge adjacent edges of the two panels toward abutting relation with each other, whereby further expansion of the passage is prevented. Upon solidifying, the injected material comprises a key, which interlocks the panels and seals the joint therebetween.

Abstract: A streamline shroud surrounding a jet aircraft engine terminates forwardly of the aft end of the engine tail pipe, which comprises a secondary nozzle. Two or more deflector doors in stowed position combine to form a sleeve surrounding the aft portion of the tail pipe, and the trailing edges of these doors extend downstream and converge beyond the tail pipe to form a primary nozzle, which has an exit flow area smaller than that of the secondary nozzle, and of proper size and configuration to provide required mass flow, velocity and pressure for normal flight operation. The doors swing outwardly and rearwardly on linkage carried by the sponsons to a deployed position spaced aft of the tail pipe and disposed transversely to the tail pipe axis to deflect flow laterally and nullify thrust.

Abstract: A primary antenna reflective structure is supported for pivotal movement in the elevation direction between the zenith and horizontal points. Drive motors via a bull gear rotates the antenna through its permissible travel. Inertia counterbalance is utilized to control the motion of the antenna. That counterbalance comprises a pinion driven by the bull gear. Left and right guides are integral with the pinion and followers are contained within housings and are adapted to be driven by the guides. The followers move in opposite directions and either compress or relax springs which are housed concentric with the guides. The guides comprise either a ball screw or roller screw, and the followers either a ball nut or roller nut.

Abstract: The roof structure of a ground transportation vehicle is manufactured as a unit, complete with all components, accessories, finish and trim, as are also each of the vehicle sidewalls, including the seats, which preferably are cantilever or semi-cantilever type. The completed roof structure and walls are then assembled and secured, by externally applied fastenings, in permanently interconnected relation on a base structure which has a finished floor covering laid thereon, so that the interior of the vehicle is then complete, or virtually complete.

Abstract: A thrust reverser for utilization with wing mounted jet powered aircraft discharging exhaust gases over the wings thereof. The jet engine is housed in a nacelle which is affixed to the forward part of the wing of the aircraft and the nacelle is appropriately contoured for connection to the wing to form part of the aerodynamic profile therewith. A blocker door in stowed condition is contiguous the wing and is similarly profiled. The blocker door is pivotable counterclockwise to a deployed condition wherein it intercepts the airstream before the exhaust gases are discharged through the nozzle. A deflector door is formed in the nacelle in the vicinity of the trailing edge thereof, and it is pivotable clockwise to its deployed condition in which it diverts the gases delivered to it by the blocker door. Separate hydraulic actuators, one associated with the nacelle structure, and one with the wing structure are employed to deploy and stow the blocker and deflector doors.

Abstract: A cascade thrust reverser for a fan-jet engine comprising a two portion shroud surrounding the engine forming a duct therebetween for the rearward directional flow of bypass gases. The forward portion of the shroud is fixed in position. The rear portion of the cowl translatable from a forward reverser stowed position to a rear reverser deployed position. An opening is provided between the two cowl sections for bypass gases to exit the duct when the reverser is deployed. A plurality of pairs of cascade baskets are positioned around the circumference of the cowl intermediate the shroud walls; one of each pair is positioned over the other and nest in a cavity in the forward wall of the rear shroud portion when the reverser is stowed. The innermost cascade baskets pivot into the duct when the reverser is deployed, and direct the bypass gases through the outer cascade baskets for reversing the direction of the flow of bypass gases.

Abstract: A surface effect-type ship has vertically depending sidewall skirts that define a shock receiving cavity. A compound keel member is pivotally mounted to the forward end of the bow and is adapted to dampen the shock of waves incident thereon. The keel member includes a skeletal structure over which is clad a resilient and deformable skin. That skin deforms due to the wave pressure so as to present a concave surface to the incident waves. This surface partially diverts those waves into horizontal and vertical components. The vertical components may be cushioned by means of an air bag suitably positioned in the cavity behind the keel member. The vertical forces are transferred to the sidewalls and to some extent are canceled since each side of the keel acts to divert waves. Off center waves are dampened by the feature of the entire keel member being pivotable about its longitudinal axis. The keel is provided with such spring loaded means in constant contact with the sidewalls.

Abstract: For the diffusion bonding of members of titanium and some titanium alloys, layers of Cu, Ag and Ni are deposited by plating on both sides of a sheet of etched, chemically clean, titanium or titanium alloy foil of a thickness preferably less than 0.001 inch. The plated foil is interposed between faying surfaces of the members to be bonded together, and the members, with the interposed foil, are sealed under pressure, in an inert atmosphere and under partial vacuum or hard vacuum of, for example, 10.sup..sup.-4 Torr. The parts thus prepared are heated to brazing temperature to render liquidus plating material and thereby establish a diffusion bridge between each plated face of the foil and the adjacent faying surface of each of the members to promote atomic transport of titanium thereacross and established a joint therebetween.

Abstract: The reflector surface of the concentrator is formed of plastic type material and includes at least one layer of reinforcing material embedded therein. The concentrator has a parabolic concave inner reflective surface and is constructed either as a unitary member or by joining together a plurality of segmented sections. The reflective surface is provided by a plurality of side by side individual rectangular mirror segments at least partially embedded therein.

Abstract: For controlling the tension on the belts of a multiple belt drive, one or more sheaves are journaled on each end of a walking beam, which in turn is pivotally mounted on a spring-biased lever. The total number of sheaves employed corresponds to the number of belts in the multiple belt drive, and the sheaves are spaced apart axially thereof, and the lever is so mounted, that one of the sheaves is in rolling, bearing engagement with each of the belts. The walking beam-to-lever pivotal connection is so located as to cause the sheaves to exert equal, or controlled differential, pressure on all of the belts.

Abstract: In a transit vehicle having a row of hingedly suspended windows along each side thereof, an individually, manually releasable latch is mounted adjacent the lower end of each window. An inflatable latch actuating member is concealed within each latch, and when inflated moves the latch to unlatched condition. Conduit means interconnects a selected plurality of the inflatable latch actuating members and leads to a valve controlled by the vehicle operator, which valve, when actuated, admits pressurized fluid through the conduit means to inflate its selected plurality of inflatable members.

Abstract: A double deck bus has a wide front entrance door and two rear exit doors, one from each deck. The upper deck is at selected standing headroom height from the lower deck, and at selected sitting headroom height from the vehicle roof. A channel passageway with selected standing headroom is provided lengthwise of the upper deck. A curved front stairway leads from the front entrance door to the front end of the upper deck passageway, and a descending stairway leads from the rear end of said passageway to one of the rear exit doors. The fare box is located within the curve of the front stairway to be visible to the driver, whose seat is well above the lower deck. An engine compartment is provided at the rear end of the bus, and a wall separates it from the lower deck passenger compartment.

Abstract: An apparatus to generate a wave-like pattern of forces on a surface effect ship utilizes a flexible membrane which undulates in a water wave-like manner, the crests of the waves transferring forces to the surface effect ship. The membrane is undulated in its sine wave configuration by means of a series of linkages, one link of which is pinned to the underside of the membrane. That link is reciprocally actuated and the combined movements of the various linkages cause the membrane to undulate as would water waves. The main drive motor drives a primary shaft to which are connected a series of gear boxes which in turn drive secondary drive shafts. By controlling or varying the speed of the primary drive motor, the frequency of the generated waves may be varied. At each linkage station there is a crank and the connecting rod is adjustably connected to the crank. The amplitude of the waves can be varied as desired by adjustably positioning the connecting rod along the crank.

Abstract: A vapor emission control system adapted to accommodate displaced vapors generated during the filling of a motor vehicle storage tank, wherein a first storage tank is adapted to communicate sequentially with an intermediate vacuum accumulator and ultimately with the intake manifold of an internal combustion engine.In the preferred embodiment a dispensing nozzle is inserted into vapor sealing engagement with a first liquid storage tank wherein said liquid storage tank is equipped with a unidirectional self venting gas cap. Upon insertion of the dispensing nozzle a unidirectional bypass line normally closed is opened via an entry port flap actuator.

Abstract: A liquid interface diffusion process for bonding titanium or titanium alloys wherein at least one of the titanium type materials to be fayed is sequentially plated with a total weight of from between 1 and 5 gms/ft.sup.2 of honeycomb core of layers of copper and nickel or an alloy made therefrom. The faying surfaces are then held together to maintain position on alignment, placed in a protective atmosphere, the temperature of the materials are then raised at a controlled rate causing sufficient solid state diffusion to occur and a liquid to form continuing to increase the temperature to a predetermined level and holding at this temperature until a solidification occurs and sufficient additional solid state diffusion occurs producing a desirable dilution of bridge material and titanium at the joint, and then reducing the temperature at a controlled rate to a lower temperature to complete the bonding cycle.

Abstract: In a bus or other vehicle propelled by an internal combustion engine, a plurality of engine accessories are mounted on bosses provided on both sides of an upright, triangular, transversely mounted accessory drive casing which is resiliently mounted on the vehicle frame at one side of the engine.Three parallel accessory drive shafts are journaled, one within each apex of the casing, one of which, the power input shaft, is driven from the engine. The other two shafts are driven from the power input shaft. Both ends of each shaft project from the casing and the accessories are mounted on the casing in driven relation with such shaft end portions.

Abstract: A unitary sandwich panel having a polyurethane core and aluminum facing sheets, forms bottom and back support portions of a seat cantilevered at one end thereof from a transit vehicle wall or other vertical support. Cushions, arm rests, and a molded back cover are attached to the panel.

Abstract: The brake, including a brake housing, is characterized by a housing having an inwardly extending flange forming a pressure chamber with an annular piston slidably positioned in the brake housing, and the annular piston and a secondary piston are operatively associated with opposed sides of the inwardly extending flange to form pressure chambers therewith for individual actions in the brake. Spring means operatively engage the secondary piston for moving the same into operative pressure braking position for fail safe braking operation. Air pressure is supplied to the two pressure chambers or cylinders for controlling brake release and braking action.

Abstract: In a transit vehicle, such as a bus or rail car, wherein each vehicle side wall comprises a framework of upright posts or mullions spaced apart for mounting the vehicle windows therebetween, and covered exteriorly below the windows with strakes of extruded aluminum, slots are provided at selected heights in the front and rear sides, respectively, of each two mullions between which a seat is to be mounted. One mounting tab extends from the wall end of the seat portion of each seat, and another from the wall end near the upper end of the seat back portion. These mounting tabs are inserted one in each of the openings provided in the facing sides of two mullions between which the seat is to be mounted, and the seat is secured in such position by a retaining screw which anchors the seat to the wall.

Abstract: A wall-mounted, side facing seat for a transit vehicle comprises a cantilever mounted support frame consisting of a pair of end members with marginal flanges, and a stretcher interconnecting the lower portions of the free ends of the frame end members. A seat insert formed of sheet material with integral end portions and conforming marginal flanges fits between the frame end members and is supported by the frame. Angle channel members receive and retain conforming flange portions of the frame and insert, while an insert back portion slopes downwardly and rearwardly from the upper edge of an insert back portion to the vehicle wall to provide clearance from, and access to, a vehicle window in back of the seat.