Abstract: An input/output driver program residing in digital computer apparatus responsive to Pascal type of software and which operates to emulate an asychronous terminal, as opposed to bisynchronous devices having defined protocols, in a distributed processing environment. The computer thus programmed is adapted to communicate with any data processor supporting external communications with other apparatus and operates as an intelligent interface between one or more user terminals and one or more data processors, of different vendor types. A user at a user terminal communicates a specific request to the interface of the subject invention which in turn automatically executes a series of Pascal computer programs, called modules, in response to a plurality of data files, called an Information Directory. These files contain all the information required to seek out, couple to and query certain predetermined data bases for specific information in their own respective logons, protocols, etc.

Abstract: A no-load missile restraint arrangement for releasing a rocket propelled missile promptly after ignition of its rocket motor, and the expulsion of a nozzle seal from its rocket motor nozzle. An anchor device extends from the aft end of the missile, which is engaged by the nose portion of a pivotable latch member. The latch member has two operative positions, with the nose portion engaging the anchor device until the seal is driven rearwardly at the time of ignition of the rocket motor. An elongate device operatively associated with the latch member is struck by the rapidly moving seal, bringing about the releasing of the latch member such that it can pivot to an anchor-releasing position. In this way the missile is released prior to any substantial buildup of thrust in the rocket motor.

Abstract: A hinge assembly which includes two sleeves, two U-channels, a spring to effect pivotal movement between the sleeves and several links which both transmit drive force from the spring and act as an overcenter latch to lock the hinge assembly in an unfolded configuration. Each U-channel is disposed within one of the sleeves and is pivotally connected to the other U-channel to provide the pivotal connection between the sleeves. The spring and links are contained within the interior of the hinge assembly to provide a smooth, snag resistant exterior.

Abstract: A deployable truss which includes at least one foldable module. Each module includes two fixed frames, two gate assemblies, two base members and diagonal braces which are arranged for folding compactly. Foldable panels can also be attached to the module. The truss can include multiple modules sharing common fixed frames or common gate assemblies.

Abstract: A hydraulic cement mix including hydraulic cement, aggregate, sufficient water to effect hydraulic setting of the cement, and an additive comprising a poly(hydroxyalkylated)polyethyleneamine or a poly(hydroxyethyl)polyethyleneimine or mixtures of each or both, the additive being present in an amount sufficient to increase the compressive strength of the hardened mix. Generally, the additive is present in a total amount of up to about 0.25% by weight based upon the weight of the cement, usually in an amount of between about 0.01% and about 0.25% by weight based upon the weight of the cement, preferably in an amount in the range of about 0.02% to about 0.07% by weight.

Abstract: An ultrasonic liquid jet probe for coupling ultrasonic waves with a structure. The probe includes an ultrasonic transducer for emitting or receiving ultrasonic waves, a housing disposed about the transducer and in fluid communication with a source of liquid under pressure, and a nozzle for shaping the flow of liquid into a round jet column and guiding the ultrasonic waves between the transducer and the liquid jet column. The interior of the housing includes first and second chambers fluidly connected by elongated conduits to impart a substantially laminar flow to the liquid flowing into the nozzle which promotes the stability of the liquid jet column discharged from the nozzle.

Abstract: A submunition having an infrared detector disposed in a nose portion thereof, the detector having a narrow angularly-displaced field of view, and vanes for causing the submunition to rotate at an essentially constant rate while in flight, thus to cause the infrared detector to scan a target area and to detect the presence of a target having a selected higher temperature than the background infrared radiation. The submunition includes a small explosive charge sheet disposed on its outer surface and concentrated in one area, and firing pulse generation means for firing the charge. When the infrared detector scans past a detectable target within the target area, it produces a detection signal that triggers a firing pulse from the firing pulse generation means, thereby firing the explosive charge to create a lateral impulse or offset of the submunition.

Abstract: A hydraulic cement mix including hydraulic cement, aggregate, sufficient water to effect hydraulic setting of the cement, and an admixture comprising a mixture selected from an olefin sulfonate, an alkylarylsulfonate, an alkyloamide, an ethoxylated fatty amine, an alkanolamine, and a hydrolyzed starch having a dextrose equivalent value in the range of commercial corn syrups, the admixture being present in an amount sufficient to increase the compressive strength of nonplastic cementitious mixes such as those used in making masonry units, pipe and the like. Generally, the additive is present in an amount between 0.005 and 0.5 weight percent based on weight of cement.

Abstract: In an airborne target acquisition and tracking system having a stabilization axis and an optical axis in which a slight mechanical misalignment is present, an apparatus and method for electronically compensating for such misalignment. A roll rate sensing circuit in the system produces a signal when the aircraft rolls. A yaw scaling factor circuit and a pitch scaling factor circuit operate on the roll rate signal and apply scaled versions thereof to the yaw rate servo subsystem and the pitch rate servo subsystem respectively to cancel a yaw rate error signal and a pitch rate error signal produced by the mechanical misalignment. The required scale factors are automatically adjusted by use of a calibrate mode by microprocessors that calculate the ratio of yaw and pitch error signals, generated by artifically rolling the system, to the roll rate signal also generated. The measured ratios are stored in non-volatile memories functioning when the system is in the operate mode.

Abstract: A method of making rings which includes the steps of placing tubes into a container, filling the container with a bonding material in liquid form, solidifying the bonding material within the container, slicing the container into wafers and then removing the bonding material from the wafers leaving the rings as a residual product. The wafers can also be metalized in order to metalize the upper and lower faces of the rings embedded therein.

Abstract: The present invention relates to a protective entranceway contained in the outer door of a van, trailer or other shelter means. In one mode our device takes the form of a door operable about a vertical hinge line, and although thicker than an ordinary door, it serves in the manner of an ordinary door to provide closure for the shelter means at such time as no contamination is present. A platform is contained on the outer portion of our door, which is enabled to swing downwardly at the time of a contamination alert. A canopy that had been contained in the door in a folded condition is caused by downward movement of the platform to deploy and form a closed entranceway serving in a second mode of use to prevent contaminated air from entering the shelter means.

Abstract: A high force-gain valve including a housing having first and second openings therein, a fluid diverter fixed in position within the housing and aligned with the second opening, a translatable gate closely surrounding the diverter and having a sealing edge which in the closed position seats against the portion of the housing adjacent the second opening, and a positioner for translating the gate between open and closed positions. The gate is hollow, its interior being in fluid communication with the interior of the housing, and has a beveled sealing edge, exposing most of the sealing edge to the fluid pressure within the housing, and is therefore force balanced. The force balancing permits the gate to be easily and quickly translated and positioned between the open and closed positions.

Abstract: A box truss hoop which is defined by circumferentially adjacent collapsible boxes. The hoop is expandable radially from a compact, folded configuration to a deployed hoop configuration. Each of the boxes includes collapsible inner and outer frames, connecting side members extending between the inner and outer frames and diagonal braces. When employed as an antenna, the box truss hoop includes a shaped reflective surface extending across the hoop and a feed located at the focus of the reflective surface.

Abstract: A composite mirror and a method for making the mirror. The mirror has an aluminum reflective surface and coatings of aluminum oxide, chromium and gold deposited thereon, thus making the mirror highly reflective yet corrosion resistant. The method of making the mirror includes the steps of polishing the aluminum surface and depositing the coatings in sequence.

Abstract: The present invention is a specific combination of components having unique properties both in composition and benefits. Such a combination has been found in alkali or alkaline earth metal nitrates, alkanolamines and alkali or alkaline earth metal thiocyanates. In such combinations it has also been found that alkaline and alkali earth thiosulfates and chlorides below the concentration level where corrosion is promoted may advantageously be substituted for all or part of the thiocyanates and that diethanolamine, N,N-di(hydroxyethyl)glycine (bicine) and N,N-di(hydroxyethyl)-.beta.-aminopropionic acid (DAPA) and certain alkanolamines and alkanolamino acids and derivatives may advantageously be substituted for all or part of the triethanolamine.

Abstract: A bead for connecting cords. The bead includes holes therethrough through which the cords extend and adhesive in the holes for bonding the cords to the bead. A method is also described for adjusting the lengths of and connecting cords and includes the steps of fabricating a bead with holes, inserting cords through the holes, attaching a clamp to a cord whose length is to be adjusted, inserting shims between the bead and clamp so as to position the bead, introducing adhesive into the holes, and removing the clamp and shims.

Abstract: This invention relates to a method for the application of a coating composition containing Refractory Hard Material to a cathode substrate to prepare an aluminum wettable cathode surface.A mixture of Refractory Hard Material and carbon system is applied to a cathode substrate, cured and carbonized to a non-graphitized carbon matrix containing Refractory Hard Material, characterized by strong bonding of said matrix to said substrate and an ablation rate of said carbon matrix similar to the combined rate of wear and dissolution of the Refractory Hard Material.

Abstract: The application of a Refractory Hard Material coating composition to selected areas of the surface of an aluminum cell cathode permits tailoring or control of ledge formation during cell operation. Cell voltage improvements are also noted, resulting in more efficient cell performance.

Abstract: A magnetically actuated valve which includes a one-piece valve body, a linearly translatable poppet for selectively blocking an aperture in the valve body, a magnetically operable rotor, a magnetic collar or electromagnetic coil external to the valve body for inducing rotation of the rotor, and a screw and nut arrangement for converting rotational motion of the rotor into linear motion of the poppet.

Abstract: A motor driven hinge assembly for effecting relative pivotal motion between hinged members. The assembly includes first and second members hinged together, drive links slidingly connected to the first member and pivotally connected to the second member, a motor disposed within the first member and a gear train and lead screw connecting the motor with the drive links. Actuation of the motor effects pivotal motion of the second member relative to the first member between folded and unfolded positions.