Abstract: A device will detect man-made objects by using a polarizer. The polarizer rotates about an axis in front of a lens array. The rotation of the polarizer alternately polarizes light received in proportion to the speed of rotation. This produces flashing in intensity for detecting the object as well as background rejection due to its lack of polarization. A man-made object having both horizontal and vertical surfaces of a type that will reflect light that can be polarized will provide flashing through the lens array as the polarizer passes through horizontal and vertical position. On the other hand, backgrounds don't have polarized components and won't flash. Attention is drawn to the man-made target. The background can also be electronically eliminated from the observed scene, permitting precise lock-on to the target.

Abstract: An ultrasonic squirter couples transducer emitted ultrasonic waves with a structure for ultrasonic testing. The squirter has a tubular body with an outlet on one end and an inlet spaced from the outlet for delivering a flow of liquid through the body to the outlet. The transducer mounts in the body in a position for transmitting and receiving ultrasonic waves through the liquid that passes through the outlet. A nozzle secures to the outlet for discharging the flow of liquid against the structure. A ring locates at the outlet of the body just downstream from the transducer. The ring and nozzle are of an elastomeric material containing metal oxide particles to absorb unwanted sound energy.

Abstract: Method and apparatus for winding a tape smoothly onto an irregularly shaped mandrel or the like, including ends, characterized by tape storage and unreeling of packaged reels of tape to be wound smoothly onto the mandrel, mandrel rotational motor and gearing supporting and rotating the mandrel; delivery head roller for winding the tape onto the mandrel, a creel carrying the tape reel assembly, a creel rotating means adapted to rotate the creel to desired positions, an in-feed means carrying the creel and adapted to traverse normal to the mandrel, a traversing carriage carrying the in-feed means and adapted to traverse longitudinally of the mandrel; a controller for effecting movement of all the machines elements. The roller is freely rotatable and is pivotally mounted such that when moved longitudinally of the mandrel in both directions with the tape passing over it, the tape is wound smoothly onto the mandrel.

Abstract: A method and system for improved performance of a V/STOL aircraft characterized by directing a major portion of exhaust gas flow from a propulsion system through a closed conduit means to exit through a thrust producing primary nozzle that includes turning apparatus for forming a bend for the exhaust flow downstream of the propulsion source; turning the exhaust flow while simultaneously bleeding-off through at least one secondary nozzle a second and minor portion of the exhaust flow from an outer portion of the bend downstream of the bend leasing edge to reduce the vortex formation in the bend and directing the bleed-off and exhaust flows adjacent each other and oriented in the same direction in all flight modes for recovery of the maximum thrust potential.

Abstract: A device for securing a workpiece to a fixture for performing machining operations includes a tubular, radially expansible mandrel. The mandrel is carried in a passage provided in the fixture and extends into a hole provided in the workpiece. An expander stem is carried within a bore of the mandrel. The stem has an upper end that is tapered for expanding the mandrel. The lower end of the stem is connected to a hydraulic piston. A spring applies an upward force on the mandrel. A hydraulic cylinder moves the stem downwardly, while the spring retains the mandrel in a stationary position until it grips the workpiece. Then, the hydraulic force overcomes the force of the spring to pull the mandrel downward slightly to secure the workpiece to the fixture.

Abstract: A punch for setting a rivet has features to prevent swelling of the rivet between the two members being secured together. The punch has an elongated, solid blow transmitting member with a blow receiving surface and a shank. A sleeve is slidingly carried by the shank and movable from a position protruding past the lower end of the shank. The sleeve has a sidewall with at least one elongated slot extending therethrough. A pin is secured in the shank and extends laterally outward from the shank into the slot to retain the sleeve. A spring urges the sleeve downwardly.

Abstract: A radar correcting system has features for providing a corrected radar receiver reflection to a Doppler process unit. The corrected receiver pulse accounts for variances in phase, amplitude and frequency of the transmit pulses. The system has a phase detector that detects the phase difference between a stable oscillator and the transmit signal, providing a complex video or real and imaginary outputs. An operator that will normalize the transmit pulse is determined. The operator is applied to the reflections received by the receiver antenna to remove from the reflections any vagaries due to varieties in the transmit pulses. The data proceeding to the processor deals only with the objects causing the radar reflection.

Abstract: An easily separable but conventional-appearing hinge wherein the hinge flaps can be connected or disconnected to/from one another without relative lengthwise displacement of the flaps by employing short axial movement of the hinge pin. The flaps thus may be hingedly securely connected together, or disconnected and separated within limited space. The flaps have tubular knuckles with adjacent space or gaps so knuckles of one flap can be interdigitated with knuckles of the other flap and held together by the hinge pin. Knuckles of one flap are slotted longitudinally forming open sided or split tubes; those of the other flap are fully tubular, i.e., unslotted. The removable hinge pin has adjacent cylindrical and flat portions, the latter positionable in gaps longitudinally aligned with the full tube knuckles of one of the flaps.

Abstract: A store load and ejector device for carrying stores on the exterior of an aircraft or the like and for dispensing same at the option of a pilot comprising a cap plate for connecting with the aircraft, struts connected with the cap plate and carrying at their bottom ends support beams having ejector racks capable of selectively dispensing the stores and at least two cross braces connected to and between respective support beams forward and aft of the struts so as to maintain separation of the support beams and any stores thereon. The cross members and the struts have biconvex shape with leading and trailing edges sweeping at respective angles within the range of 20.degree.-50.degree. so as to present low radar reflection or radar cross section. The struts, support beams and cross braces have biconvex shape for reduced drag.

Abstract: A takeoff and landing platform for V/STOL aircraft has features to reduce ground effect. The platform has a plurality of vanes mounted above a flat horizontal surface. Each of the vanes is curved to turn the jet stream from the vertical. The upper edges of all the vanes lie in a plane that is parallel with the horizontal surface. This plane is located at a distance from the horizontal surface that is about 0.5 to about 2.0 times the engine nozzle diameter at takeoff and landing of the type aircraft that use the platform.

Abstract: A propulsion system for an airplane to permit it to achieve vertical and/or short take-offs and landings. The propulsion system is integrated into a wing/nacelle unit and includes a thrust vectoring system. A separate flow turbofan engine is mounted in each wing/nacelle unit. A system of three flaps is located at the rear of each wing/nacelle unit for deflecting the turbofan engine exhaust downward, rearward, or any angle in between. These three flaps are arranged to provide a main thrust nozzle in the horizontal flight position without any additional flaps between them. One flap is located at the wing/nacelle upper surface trailing edge. Two slots are provided at the leading edge of this flap. The upper forward most slot is provided as an exit nozzle for the engine turbine exhaust, which is shrouded from the fan exhaust. The second of these two slots removes a portion of the high energy fan exhaust from the fan discharge duct and ejects it over the flap upper surface.

Abstract: A device for full depth hand routing characterized by a two piece base including a foot block and an attachment block, the attachment block being held to the foot block by a connector bolt and two adjusting screws to enable attaining parallel planes for a tool in the base of the block; a cantilevered holder extending from the attachment block; a tool on a shaft that is powered by a motor within a housing that has a substantially cylindrical barrel and a protruding threaded male part threaded engaging a threaded aperture on the cantilevered holder; an indicator scale around the base of the barrel and above the threads; and indicator carried by the attachment block and extending upwardly adjacent the depth scale such that accurate depth positions can be attained for routing to a desired depth. In a preferred embodiment, the cantilevered holder comprises a ring that allows 270.degree. visibility about the routing tool. Also in the preferred embodiment, the foot block has an upstanding flange at 90.degree.

Abstract: Easy opening article storing and dispensing containers and method in which puzzle-like locking means secure against access to the container contents by very young children by obscuring the mode of opening it. The cannular container shell has closable dispensing aperture means opening through the shell side wall. Locking means at one or more ends of the shell optionally prevents or permits opening and closing of the container by alignment or offset of release means with respect to a sliding means. Pills or other units may be segregated in separate amounts or dosages within the container and dispensed in predetermined sequence from a plurality of rings of radially openable compartments forming a stack in which rows of compartments around the container axis can be rotated to sequentially register with the aperture means and compartments of each row sequentially opened.

Abstract: A propulsion system for an airplane to permit it to achieve vertical and/or short take-offs and landings. The propulsion system is integrated into a wing/nacelle unit and includes a thrust vectoring system. A separate flow turbofan engine is mounted in each wing/nacelle unit. A system of three flaps is located at the rear of each wing/nacelle unit for deflecting the turbofan engine exhaust downward, rearward, or any angle in between. These three flaps are arranged to provide a main thrust nozzle in the horizontal flight position without any additional flaps between them. One flap is located at the wing/nacelle upper surface trailing edge. Two slots are provided at the leading edge of this flap. The upper forward most slot is provided as an exit nozzle for the engine turbine exhaust, which is shrouded from the fan exhaust. The second of these two slots removes a portion of the high energy fan exhaust from the fan discharge duct and ejects it over a flap upper surface.

Abstract: Airfoil device and method providing smooth, continuous, variation in airfoil camber and surface curvature over substantially the entire length of the device by use of a trusslike bendable beam as an airfoil rib having the airfoil skin surfaces flexibly slidable relative thereto. The beam is divided chordwise into upper and lower beam members each formed of a plurality of articulated sections. The beam members are connected by a bendable jackscrew which upon rotation causes one member to move chordwise, and its curvature to be changed, relative to the other thereby effecting deflection of the airfoil with concomitant variation in its camber and the curvatures of its outer skin surfaces.

Abstract: Welding composition for welding a compatible steel having exceptionally high strength and high fracture toughness, which consist essentially of iron containing respective percents by weight of constituents as follows: 0.12-0.20 carbon, 1.8-2.2 chromium, 0.9-1.1 molybdenum, 12.0-14.5 cobalt, 9.0-10.5 nickel and a deoxidizer selected from the class consisting of (a) 0.05-0.20 manganese, (b) 0.010-0.035 aluminum, (c) 0.01-0.20 silicon, (d) a combination selected from among (a), (b), and (c), and (e) a combination selected from among (a), (b), and (c) and 0.02-0.10 vanadium; the composition having a concentration of respective constituents adjusted to have an ultimate tensile strength of 210-250 Ksi (thousands of pounds per square inch), a tensile yield strength of 200-230 Ksi and a Charpy V-Notch absorbed energy of at least 30 foot pounds and produce a weldment having satisfactory strength, toughness, and stress corrosion resistance.

Abstract: Solar energy collectors, devices and systems utilizing selective solar absorbers for more efficient collection of radiant energy from the sun and its conversion to useful form at relatively high heat transfer temperatures. Each collector unit is made up solely of a closed shell-like enclosure having a continuous, unpenetrated boundary wall evacuated and hermetically sealed to form a structurally strong radiation collecting chamber whose boundary wall surrounds a rarified atmosphere environment such as a vacuum, the wall having a window portion which transmits substantially all of the received solar spectrum to a selective solar radiation absorber in the chamber and energy derived therefrom is collected at any energy collecting and transferring portion of the wall from which heat is conducted to the exterior.

Abstract: Inspection for hole quality in structures is enhanced by inserting a smooth, thin-wall hollow sleeve into a hole to be tested and moving an eddy current probe within the sleeve. Mechanization is improved by apparatus which inserts and holds the sleeve in the hole and has drive means operable so as independently to rotate the probe or move it linearly, or both, within the stationary sleeve.