Abstract: A rudder assembly which includes a frame formed by upper and lower horizontal flanges which are connected to a rudder post. A pair of parallel vertical sidewalls are connected to the upper and lower flanges, and a main rudder blade is connected to the upper and lower flanges between, and parallel to, the sidewalls. A forward blade is pivotally connected to the frame at a location forward of the main blade for movement about a vertical axis between a non-turning position where the forward blade is generally aligned with the main blade, and a turning position where the rear edge of the forward blade engages one of the sidewalls to form a channel for feeding water along the backside of the main blade to improve rudder turning efficiency.

Abstract: Apparatus for abrading the surface of a workpiece in a manner level with a selected reference plane, e.g. a horizontal reference plane. The apparatus includes a wheeled carriage to which is connected an elongated boom. Extending downward from the end of the boom is an abrading element which is mounted for rotation in a selected reference plane which is preferably horizontal, and which is prevented form tilting in a longitudinal or transverse direction relative to the boom. The boom is connected to the carriage by an adjusting mechanism which allows the carriage end of the boom to be raised or lowered so that the surface of the abrading element may be brought to a position which corresponds to the selected reference plane.

Abstract: A lapping compound including an abrasive, a detergent and a carrier. The lapping compound is mixed with a lubricating agent and applied to a workpiece surface. The most preferred abrasives are silica for softer metals, and a combination of silica and garnet for harder metals. The preferred detergents are oil based sulfonates, and more preferably sodium dodecylbenzenesulfonate. The preferred carrier is selected from the group consisting of barium sulfate and the barium soaps of fatty acids, the barium soaps having a solubility factor in water of not more than 0.008 grams per cubic centimeter of water, and further being generally insoluble in acid.

Abstract: Methods of recovering agglomerated particles of a carbonaceous constituent such as coal from a composite of that constituent and mineral matter. An additive is incorporated into a slurry of the composite to control the agglomeration time and/or to insure that the carbonaceous particles will agglomerate. Appropriate additives are:Naturally occurring hydrocarbonaceous substances such as road asphalts, Gilsonite, pentane extracts of coals, tar sands oils, coal tars, and alcohols having six or more carbon atomsCastor oilIsopropyl etherHydrolized linseed oil2-Ethylhexyl acetateIonic dispersants such as ammonium salts of lignosulfonatesNonionic dispersants such as dextrinsA compound having the formula R--O--R, R.sub.2 --CO, R--COOH, or R--COOR where R is an aliphatic moiety having at least six carbon atoms.

Abstract: A wire hanger for removably affixing the pocket card of a visible index system to a card-supporting frame, tray, or other holder. The hanger has a rectilinear main body portion and integral loops at the opposite ends of that portion. Each loop has two sides paralleling the main body portion of the hanger and an integral return bend between those sides at that end of the loop opposite the main body portion of the hanger. One side of the loop has a pocket card hinge-receiving extension spaced from and paralleling the main body portion of the hanger, and the two sides of the loop are symmetrically disposed relative to the axial centerline of the loop's main body portion. The foregoing construction substantially eliminates the possibility of the pocket card hanger being improperly affixed to the pocket card supporting structure in a manner which would result in the lower part of the pocket card being obscured or exposed to an unwanted extent.

Abstract: Simple, durable tripods for instruments such as those employed by surveyors, cameras, telescopes, laser-based measuring devices, etc. These tripods feature a tripod head which is a single piece of material and pivotable legs with a one-piece foot and a side-by-side or triangular array of hollow posts which provides strength and rigidity at a low weight. The tripod components are fabricated principally from colorfast, impact resistant, synthetic polymers which are: dimensionally stable under varying ambient temperatures; impact resistant; resistant to chemical attack and ultraviolet degradation; and, in the case of components which move relative to each other, self-lubricating. The tripod legs may or may not be extensible; in either case the tension between each tripod leg and the tripod head is independently adjustable. Stability may be promoted by rolling bearings which are located at the upper ends of the tripod legs and are seated on complementary bearing surfaces in the tripod head.

Abstract: Indirectly fired gas turbine engine systems which can be operated on alternative or renewable fuels or by waste heat. Fast response time over the entire operating range of the engine, precise control over turbine inlet temperature, and water injection for increased power output are featured as are arrangements for dumping air and thereby preventing mechanical damage when rapid deceleration occurs or the load is lost. Other mechanical innovations facilitate start-up and shut-down of the turbine engine; make preheated process air available; and provide precise control over the thermal energy supplied to the heat exchanger in which compressor discharge air is heated.

Abstract: A cleaning apparatus for a record disc comprises a support member having a top side and a bottom side. Locating means is provided for locating the support member relative to the center of a record disc. A knob is mounted on the top side of the support member for rotation about an axis offset from the location means whereby the support member may be manually rotated about the center of the record disc. A holder for a cleaning pad is mounted on the bottom side of the support member also for rotation about an axis offset from the locating means. A drive mechanism comprising a step-up gear is provided to couple the knob and the pad holder together such that rotation of the knob relative to the support member causes rotation of the pad holder relative to the support member.

Abstract: An exterior visor (20') for automotive vehicles (21) formed of two or more symmetrical visor sections (20a, 20b) adapted to be abutted in end-to-end relation to form an exterior visor (20') having an overall length "L" in the range of from about 55" to about 70", or more, wherein each visor section (20a, 20b) is provided with an integral, downwardly projecting, fore/aft vertical flange (32,34) adapted to be sandwiched between complementally shaped reinforcing plates (35, 36) and permanently secured together by rivets (38) with the thus assembled flanges (32, 34) and plates (35, 36) defining an integral reinforcing support or brace for the visor (20') and wherein, when disassembled, the visor sections (20a, 20b) may be stacked in nested relation and packaged in a box (31) having a length "L", a height "H" and a depth "D" wherein the dimensions "L", "H" and "D" are such that "L"+2 ("H"+"D") is equal to or less than 84" even where the overall length of the assembled visor (20') may be on the order of 70", or mor

Abstract: Apparatus for applying labels at selected locations thereon to such diverse artifacts as audio and video cassettes, compact and floppy discs, and envelopes and to a wide variety of other artifacts. The labels are peeled from a continuous backing supplied in roll or fanfold form by pulling the backing around the sharp edge of a peeler which is automatically elevated at an appropriate point in the operating cycle of the apparatus to facilitate the loading and unloading of the artifacts being labeled. A roller cooperates with the peeler in stripping the labels from the backing; and that roller, a second roller, or a brush is used to press the label onto the artifact being labeled. The artifact is supported by an interchangeable insert from a rectilinearly displaceable carriage.

Abstract: Apparatus and methods for retrieving bipolar, standardized, digital communication words for test purposes from a source transmitting over a system bus, and displaying these communication words in an understandable format. The apparatus incluldes signal receiving ports coupled to the desired bus, which monitor and retrieve preselected communication words that are transmitted to one or more line replaceable units connected to that bus. Each incoming communication word contains an encoded label which is repetitively compared to a preselected label so that only those communication words having matched labels are retrieved for display. The retrieved word is decoded in either engineering or binary form and then displayed at an LCD window, printed out as hard copy, or made available to an IEEE-488 interface.

Abstract: YAn aircraft leading edge slat is biased when at an extended location toward a first position wherein the trailing edge of the slat is a predetermined distance from the wing upper surface. The slat is pivotable to a second position, when aerodynamic forces acting on the wing overcome the biasing force, wherein the slat trailing edge is pivoted upward and forward, and the distance between the slat trailing edge and the wing upper surface is increased. The slat is retracted and extended by a drive track which is supported inside the wing by upper rollers located chordwise within the wing cavity, a lower front roller, and a pair of roller rings rotatably mounted at opposite sides of a rotary actuator pinion gear. The pinion gear engages the drive track and moves the slat between the extended and retracted positions.

Abstract: An apparatus and method for first drilling a hole in a workpiece by utilizing a locating jig, and then inspecting the hole to insure it is drilled to the proper diameter. There is an inspection device having an inspection probe that is pivotally mounted about a universal mounting device so that the lower inspection end of the probe is able to deflect laterally to fit in the drilled hole so as to be centered therein. This arrangement compensates for any misalignment in the positioning of the inspection apparatus relative to the earlier alignment of the drilling apparatus.

Abstract: A leading edge/anti-icing assembly for an airfoil comprising a leading edge slat having a nose section defining a heat exchange chamber. Anti-icing air directed into the heat exchange chamber flows rearwardly through the slat so as to have a deicing function, and is then discharged in a rearward direction from the trailing edge of the slat. Thus, the anti-icing air not only performs an anti-icing function over the upper surface of the slat, but also contributes to anti-icing over the upper surface portion of the main wing rearwardly of the trailing edge of the slat.

Abstract: A speaker enclosure is configured internally so as to minimize the generation of unwanted audio waves inside the enclosure, as well as to promote dissipation of those waves which are generated inside the enclosure. There is provided at the forward portion of the enclosure an isolation structure which converges in a rearward and inward direction and is located about the speaker diaphragm. There is further provided at a rear portion of the enclosure a structure for deflecting audio waves which are generated rearward from the speaker. The deflection structure reflects the audio waves against the sidewalls of the speaker, with the internal walls of the speaker being nonparallel so as to cause increased reflections of these audio waves and their eventual dissipation.

Abstract: An agricultural harvester for rowed crops, such as berry bushes, includes a wheeled chassis having an enclosure formed by a pair of upstanding fore and aft extending sidewalls. The harvester is driven in a manner that the berry bushes enter the front of the enclosure and exit from the rear. A stabilizing and displacing assembly is located toward the front of the enclosure to dislodge the fruit from the bushes when the bushes are within the enclosure, and to minimize any dislodging of fruit forward or rearward of the enclosure. The fruit is dislodged by a side-to-side transverse movement of the bush which is caused by a set of middle displacing rods. The bush is stabilized by forward and rearward stabilizing rods which act in opposition to the middle displacing rods.

Abstract: The positions of a non-cooperative emitter (illuminator) and reflector (target) relative to a receiver of electromagnetic energy, which neither directly nor indirectly controls the illuminator, is determined utilizing emissions received directly from the illuminator as well as reflected emissions from the target. A range R.sub.I between the receiver and the non-cooperative illuminator is determined by measuring the time difference between receiving the reflected signals at a pair of interferometer antennas located at the wing tips of a receiver aircraft. Calculation of the location of the target is accomplished by utilizing range R.sub.I, as well as a time differential .DELTA.t between the receipt of the reflected signals at the interferometer antennas and the receipt of a corresponding direct signals at a radar antenna located at the aircraft. In the event there is clutter in the reflected signal which hinders the determination of the time differential .DELTA.

Abstract: A paper product for storing fragrances comprises a paper support in which there is embedded a quantity of microcapsules in some of which there is encapsulated a fragrant essence while others are without fragrance, e.g., filled with a neutral fluid. The microcapsules are incorporated in the paper during its preparation from paste. Those neutral microcapsules preserve the integrity of the fragrance-containing microcapsules during handling of the product. The captive fragrance may be released after an indefinite storage period by deliberate crushing or otherwise rupturing of the microcapsules. The product may be a scented card, publicity insert, unwoven paper tissue or the like, and the main application of the invention lies in the perfume industry.

Abstract: A velocity controller for a ramjet missile, having a supersonic inlet proximate the peripheral skin thereof for admitting air to a combustion zone of a ramjet engine, is comprised of a variable pitch cover disposed in pivotable engagement within the inlet and an actuator in operative engagement with the cover for adjustably positioning same over an angular range and thereby modulating airflow for the purpose of controlling flight characteristics and, principally, velocity of the missile. A sensing system is provided for detecting a dynamic flight parameter indicative of velocity of the missile and generating an output characteristic thereof for controlling the actuator and, in turn, the pitch of the cover. Methods for improving the flight performance of both solid fuel ramjet missiles and ducted rocket missiles are also disclosed herein.

Abstract: An orthotic insert for use in various types of foot gear consisting of a first blank and a second blank fused together. The first blank is a flexible pad generally contoured to the bottom of a person's foot and the second blank is more rigid and contoured to the calcaneal and arch regions of a specific individual's foot. In combination the first and second blank form an orthotic insert which offers support to and is resiliently deformable in the heel area and flexible in the toe area thus emulating the requirement of the human gait cycle.