Abstract: A self starting predictor corrector method of arbitrary order is disclosed that uses exact stability integration in network designs for application in systems optimizing control of aircraft through improved numerical techniques. Such method defines a self starting predictor corrector routine for a numerical solution of differential equations having a main process that computes derivatives of the states with a n-th order numerical solution for a n-th order differential equation. Moreover, such method configures an exact stability algorithm for generating a numerical integration of a high order of any type linear or nonlinear filter or network by constraining extraneous eigenvalues in the high order filter or network to be a definite value.

Abstract: An athletic training device for teaching proper technique for hitting, throwing, and fielding a baseball has positional indicia affixed to both sides of a stance and stride mat. One side has positional indicia for teaching proper technique for hitting a baseball and in practice is used in conjunction with a batting Tee having directly opposed positional indicia. In a game, when stance and stride batting mat is removed from the batter's box, a batter can guide on the positional indicia affixed to the batting Tee. The other side has positional indicia for teaching proper technique for throwing and fielding a baseball and in practice can be used at any convenient location on the playing field.

Abstract: A tie-down device has been invented that greatly improves securement of cargoes, loads, and ladings to beds, supports, and pallets. When installed within post receiving wells of beds, supports, and pallets, compressable polymeric material is caused to latitudinally expand in all outwardly directions in response to longitudinally applied compression thereupon by turning of an eyenut member.

Abstract: A cutter and separator utensil is disclosed whereby means for cutting an article of food into portions are combined with means for separating from the walls of cookware portions of food adhering thereto. The utensil of this invention can be commercialized as a disposable and as a nondisposable article of manufacture fabricated from either metallic or nonmetallic materials that are food industry safe.

Abstract: A class of fire suppressant compounds which have labile bromine atoms bound to atoms other than carbon have been discovered to be more effective at suppressing fires than Halon 1211 and Halon 1301. Moreover, this class of fire suppressant compounds hydrolyze or oxidize rapidly in the troposphere and as a consequence thereof, they have minimal ozone depletion potential.

Abstract: An indexable insert drill for producing a hole in a workpiece by relative rotary motion between the drill and workpiece. The drill comprises an elongated body having a central axis and a leading end, and a plurality of cutting inserts mounted on the leading end of the body. The cutting inserts are displaced at different radial locations relative to the central axis of the body. Each cutting insert has a cutting edge formed by a pair of respective inside and outside active cutting edge segments with the inside cutting edge segment being located closer to the central axis of the body than the outside cutting edge segment thereof. The inside and outside cutting edge segments of the respective cutting inserts extend at obtuse angles to one another and define therebetween apexes which are axially displaced at different distances from a plane normal to the central axis of the drill at the leading end of the drill which distances increase in length from an innermost one of the inserts to an outermost one thereof.

Abstract: A threading tool for repairing, in situ, threads within a bore of a head of an internal combustion engine without the danger of particulate waste falling into the engine housing. The threading tool can be used separately or in combination with a reaming tool for deburring, in situ, rough edges generally at the crest of threads within a bore of a head of an internal combustion engine without the danger of particulate waste falling into the engine housing.

Abstract: A vehicle has affixed a gear rack mast for mounting a modified core driller adapted to accommodate a flexible coupling for driving a texturing tool for grooving or scoring a plurality of monolithic blocks to an even depth regardless of their levelness with respect to one another. The texturing tool has a plurality of concentric grooves in which are affixed a plurality of abrasive containing arcuate segments. A sensing system is provided for maintaining depth of groove.

Abstract: Hypodermic syringes with accompanying hypodermic syringe needles may readily utilize the disclosed safety device to achieve less operator risk of needle stick injury and less risk of body fluid contamination. In the preferred embodiment the safety device, which can be releasably affixed to the barrel of a hypodermic syringe having an attached hypodermic syringe needle, has a channel-like member that houses a forwardly movable, generally L-shaped member and a rocker spring. After injecting substances into or withdrawing body fluids from a human being or an animal, the L-shaped member is pushed forwardly somewhat beyond the tip of the hypodermic syringe needle. The downwardly action of the rocker spring cooperating with the design features of the L-shaped member causes the L-shaped member to move downwardly past the tip of the hypodermic syringe needle and then rearwardly so that the tip of the hypodermic syringe needle becomes embedded into the L-shaped member.

Abstract: A medically equipped mini-ambulance for use in providing emergency medical treatment and in transporting the injured and sick from a remote site to a medical treatment facility is disclosed. A material transport is adapted to accommodate emergency and scene lighting, housings for medical equipment and supplies, patient cot platform, attendant chair, and convertible roof.

Abstract: Improved swimming efficiency and safety in a water environment is achieved with the use of retractable swim fins having a web-like member rotatably interconnected to a shoe-like member. Latching means secure the web-like member to the shoe-like member in a downward swimming position. Releasing means permit the web-like member to rotate to an upward walking position. Pressure from a swimmer's foot returns and latches the web-like member to the downward position.

Abstract: Therapeutical application of elevated or depressed temperatures to various afflicted portions of an animal or human body with a multilayered device combining protective and insulative means with heating and cooling means renders pain less acute, alleviates disease, reduces body temperature, stimulates circulatory and respiratory systems. The heating and cooling means features an array of non-communicating chambers enclosing packets containing a thermoresponsive mixture while the protective and insulative means features a layer of resilient material and a layer of fabric-backed covering material. The reusable therapeutic device of the present invention can be manufactured in various sizes and shapes to conform to the contours of any animal or human body area and if damaged, can be easily repaired or the damaged part can be easily replaced.

Abstract: A workpiece holding assembly for use on a chuck includes a chuck jaw and an adjustable self-centering workpiece holder. The chuck jaw has an elongated body with opposite ends, a groove defined in one end of the body, and a pair of arcuate recesses formed in the one body end on opposite sides of the groove. The workpiece holder includes a shaft portion and a base portion attached about a midsection of the shaft portion such that the holder has an integral, one-piece construction. The shaft portion is of generally cylindrical shape adapted to extend into the arcuate recesses of the one chuck jaw body end. The base portion is of greater than semi-circular shape and adapted to extend into the groove of the one chuck jaw body end. The base portion also has a generally semi-circular closed slot defined therethrough adapted to receive at least one fastener therethrough being fastenable to the one chuck jaw body for releasably clamping the base portion in the groove.

Abstract: A cutting disk mounting assembly includes opposing end plates with a stub shaft attached to an exterior surface of one end plate. The plates have a first axial bore formed in the interior surface of the one plate and a protruding axial hub formed on the interior surface of the other plate. The hub is sized to fit in the first bore so as to align the plates in a clamping relation with their interior surfaces located adjacent to one another. A second axial bore is formed through the other plate and the axial hub thereon and a third axial bore is formed through the one plate so as to open into the first bore therein. The third bore aligns with the second bore when the hub is fitted in the first bore. Also, the third bore contains threads which threadably interengage with a threaded fastening screw when the latter is applied through the second bore to attach the aligned plates together in the clamping relation with respect to a cutting disk when the latter is disposed therebetween.

Abstract: A method is disclosed for computer composition of Nastaliq script and similar Ruka'ah script of the Urdu group of languages (Arabic, Persian, Punjabi, Pushto, Sindhi) in full conformance to rules of a script. Basic constituent elements of the characters of scripture are stored in a computer memory and these elements in response to user command are joined with each other, as required, to compose scripture according to a set of rules defined and stored in a rules dictionary. Combinations of characters that do not conform to the general rules contained in the dictionary are treated and executed as exceptional cases by the computer program. Moreover, an efficient mapping of Urdu characters to the existing QWERTY keyboard is achieved by matching character frequency of occurrence to finger agility, by pattern recognition features of similar characters, and by rationalizing the overall finger workload.

Abstract: A flow control valve includes an outer housing with a central bore in communication with pressure, return and working ports in the housing, and an inner cartridge subassembly disposed in the housing bore. The subassembly being slidably and sealably receivable within, and removable from, the housing bore is composed of concentrically-nested members arranged for relative movement to define fluid flow paths within the subassembly for connecting the pressure, return and working bores in selected ways. First, the subassembly has a hollow cylinder and a by-pass sleeve press fitted within the cylinder with both adapted to be disposed in a stationary position within the outer housing. Also, a hollow valve spool plugged at its opposite ends to define an interior flow cavity is slidably received within the by-pass sleeve and axially movable to change the fluid flow paths between the housing ports.