Abstract: In order to reduce the size of the memory employed to store firmware, the firmware is written in virtual control words which are then reduced by allotting them to a primary control word memory and at least one secondary control word memory which is addressed by a field in the primary control word memory. A virtual set of secondary control words are each divided into a plurality of fields, and each field of each secondary virtual control word is marked as guarded or "don't care". If a field is marked as "don't care", the function represented by the virtual control word will perform properly no matter what the content of that field. Virtual control word pairs are then examined to ascertain if they can be combined into a single control word.

Abstract: A method executed by a computer system for providing a visual interface Nor specifying relationships and correspondences between two graphically displayed database schemas in object oriented form. After displaying two schemas, selecting an object one from each and displaying their attributes. After selecting a pair of attributes if they are key attributes, comparing their domains and recording same and checking to determine if there is a mis-match as to data types. If either attribute is not a key attribute, checking to see if there is a mis- match of data types. If in either case there is no mismatch, then select a name for the combined attribute and deleting the attributes so combined from the list of attributes for each object. Repeating until all attributes of all objects of the two schemas have been combined, then generating a file containing all correspondences and a list of all assertions of correspondences.

Abstract: A method for integrating the schemas of a plurality of independent and heterogeneous database management systems of a distributed database management system (DDBMS). The DDBMS includes a computer system in which the DDBMS resides and one or more subservient computer systems. The schemas of two of the independent database systems are fetched from the subservient computer systems. The schemas are converted from a relational database form to an object-oriented form. The schemas are then normalized and displayed graphically. Equivalencies are identified and the two schemas are integrated. These steps are repeated until the schemas of all data bases to be integrated have been integrated into a single integrated, or global schema.

Abstract: A method executed by a computer system for converting a database schema in relational form to a schema in object-oriented (00) form. The input is the schema of a database in relational form including all relations of the schema and the primary keys, reference keys, and attributes of each relation. A special data structure (SDS) is created for each primary key based on the number of attributes of the key. Each SDS becomes the basis of an object of the 00 schema produced. Attribute functions and cross-reference functions are created based on the SDSs and reference keys. SQL commands to map the relational input schema to the 00 output schema are identified.

Abstract: A method for graphically displaying an object-oriented schema on the screen of a computer system. The input is an object-oriented schema of a database in textual form. The input is parsed to identify the components of the schema. A connectivity matrix is developed in order to determine the number of interrelationships of objects. The screen is partitioned into cells, with each cell designed to hold an object and its attributes, with the object that has the maximum number of relationships with other objects being placed in the center cell of the grid, and related objects in adjacent (surrounding) cells. Relationships between objects and their attributes are identified by lines, arcs, labels, and arrows drawn on the screens of the display device of the computer system. The user can interface with the system by clicking on the graphical objects appearing on the computer screen.

Abstract: A spin stabilized projectile (16) containing a high explosive bursting charge (24) is provided with a safing and arming mechanism (20) comprising a safety barrier (48) for blocking the firing train between the detonator (38) and the charge (24), and two mechanical components for restraining and releasing the barrier. The two mechanical components include a conventional setback tab (76), which is responsive to forces of linear acceleration during launching of the projectile (16), and a delayed action lock ball device (67, 68), which is responsive to centrifugal forces after the projectile (16) has begun to spin. The delay in the response of the lock ball device (67, 68) to the centrifugal forces is accomplished by means of a creep ribbon (54) which prevents release of the barrier (48) until the ribbon (54) has undergone a predetermined amount of time-dependent deformation.

Abstract: An improved ignition system for a fin-stabilized, high intrusion projectile (10) comprises an elongated boom (14) and a hollow fin assembly (16) which extends rearwardly into an external cartridge case (28) containing a consumable containment bag (30) filled with granular propellant (34), and which fits slidably over a primer (54). The primer (54) comprises a stub flash tube (56) extending through the base (40) of the external cartridge case (28) and a long igniter cartridge (58) fitted within the axial bore of the stub flash tube (56). The outer walls of the igniter cartridge (58) are fabricated from a combustible material such as paper, and the interior of the igniter cartridge (58) is filled with strands of benite or a similar explosive.

Abstract: The boat tail (28) of a fin-stabilized projectile (10) for firing from a smooth bore gun tube (14) is provided with a plurality of transversely extending spin chambers (34 a,b,c,d). Each chamber communicates with a converging-diverging nozzle (36 a,b,c,d) which extends through the outer surface of the boat tail (28) to provide free access to the surrounding atmosphere when the nozzles (36 a,b,c,d) are clear of the gun tube (14). When the propulsive charge in the rear of the gun tube (14) is ignited, a portion of the propellant gas produced by the charge enters the spin chambers (34 a,b,c,d) through the nozzles (36 a,b,c,d) and is stored in the chambers (34 a,b,c,d) until the converging-diverging nozzles (36 a,b,c,d) clear the gun tube (14), at which point the propellant gas exits through the nozzles (36 a,b,c,d) in the form of high speed tangentially directed jets which cause the projectile to spin at a predetermined rate which reduces dispersion due to fin misalignment.

Abstract: A cased telescoped ammunition round 40 for a fin stabilized penetrator projectile 50. A cylindrical core tube 48 is positioned within the casing 42. Projectile 50 and its sabot 52 are positioned within core tube 48. The space between core tube 48 and casing is filled with the main charge 66. An igniter 62 is located in the rear seal 46 of casing 42 and when initiated, ignites booster charge 64 located within core tube 48 between sabot 52 and rear seal 46. Ignition ports 70 in core tube 48 permit the ignition products of booster charge 64 to ignite main charge 66 when sabot 52 moves a predetermined distance through core tube 48.

Abstract: A distrbutor for the central execution pipeline unit of a central processor of a data processing system, which central processor has a plurality of execution units. The distributor serves as a communications center by which machine words, such as operands, are transmitted primarily from the cache unit of the central processor unit to execution units and the instruction fetch unit of the central processor unit. Some machine words are transmitted directly from the collector unit to selected units and others are transmitted after being stored in the data register of the distributor. Machine words stored in the data register can be realigned if required by an instruction by character or word alignment switches. The aligned words are then stored in the data register means prior to their being transmitted to units of the central processor.

Abstract: A projectile 10 with a shaped charge warhead 27 and a nose mounted contact fuze 30. A precursor shaped charge 56 and liner 48 are mounted in the base 38 of fuze 30. When a target 64 is impacted by the projectile 10, a precursor shaped charge jet is produced by charge 56 and liner 48 which forms a passage 66 through fuze 30 substantially free of debris from the fuze 30 through which the warhead shaped charge jet 62 passes.

Abstract: A detonator 24 for a projectile has a cylindrical housing 32. Housing 32 is provided with an integral base 32. A cylindrical initiator recess 38 is formed in the outer surface 40 of base 26 and an inner stress concentrating recess 42 is formed in the inner surface 44 of base 26. The two recesses 38, 42 define a circular disc 46 of uniform thickness. A bridge wire 56 is formed on a printed circuit board 22. The bridge wire 56 is coated with a temperature sensitive explosive 60. Housing 32 is positioned on board 22 with recess 38 and board 22 defining an initiator chamber 62 in which are located bridge wire 56 and explosive 60. A stab sensitive detonator 64 is positioned in housing 32 with stab sensitive explosive 66 of SSD 64 positioned in close proximity to the inner surface 44 of base 26. A firing signal, a large electrical current, when produced by a fuze 10 heats bridge wire 56 to a temperature at which explosive 60 is ignited.

Abstract: A method of securing a tracer cup 26 and fin segments 32, 33 to armor piercing penetrator 21. The penetrator 21 is fabricated of tungsten, or steel, with fin segments 32, 33 and tracer cup 26 being fabricated of steel. The tracer cup 26 contains a pyrotechnic tracer mix 27. The mounting flange 28 of tracer cup 26 is placed over a second boss 24 projecting rearwardly from a first boss 23 at the aft end of the cylindrical body of penetrator 21. A cylindrical sleeve 30 is press fit over the tracer cup 26 and first boss 23, and pre-fabricated fin segments 32, 33 are positioned on the sleeve 30. The fin segments 32, 33, cylindrical sleeve 30, and mounting flange 28 of tracer cup 26 are laser welded to each other and to the first boss 23 of penetrator 20 in one step.

Abstract: The apparatus controls access to at least one subsystem in response to requests for access from a plurality of equipments operatively connected to a corresponding port of said apparatus. The requests for access have a plurality of command levels wherein the command levels have a fixed predetermined priority relative to each other. The apparatus comprises a plurality of port request control elements for generating a plurality of specific request signals including a command level request signal to indicate the command level of a request received from the corresponding equipment, and a go signal to indicate the availability of the apparatus and the subsystem in order to execute the command requested. An activity priority select control element receives the specific request signals, and processes the go signals from each of the port request control elements to grant access within a predetermined time period to the equipment connected to the port having the highest port priority within the highest command level.

Abstract: A safety clip (20) for an ordnance munitions device (10) is fabricated from a wire of resilient material. The clip includes a straight leg (22) having a free locking end (24), an attachment loop (26) carrying a pull ring (27), a back portion (28) having at least one spring element (32), and a closed loop (30) at the terminal end of the back portion (28) for receiving the free locking end (24) of the straight leg (22). The free end (24) extends beyond and through the closed loop (30), and may be extracted from the closed loop (30) essentially by means of a straight, axial pulling force of predetermined magnitude exerted on the pull ring.

Abstract: A gas distribution system provides a gas to a chamber comprising a feed tube, having a tube-like configuration with an input and an output. The gas supplied to the input escapes via the output, the output being configured to have a first and second slot opening. The first slot opening has a predetermined first length along the length of the feed tube and has a predetermined first width across the length of the feed tube, and the second slot opening has a predetermined second length along the length of the feed tube and has a predetermined second width across the length of the feed tube. The second slot is contiguous with and abuts the first slot, and further the predetermined second width is smaller than the predetermined first width. The first and second slot configuration provides the gas at the output at a predetermined pressure, the predetermined pressure being reduced from an area near the output.

Abstract: A manual activation device (10) includes a support element (40) and a lever (42) having a cam surface (80) which contacts a ball (38) carried in a cap (36) mounted at one end of a reserve battery (17). Activation of the battery (17) is accomplished by rotating the lever (42) about a pivot pin (59) in the support element (40), causing the cam surface (80) to drive the ball (38) into the battery (17) and break the ampule (24) within the battery (17). The lever (42) is preferably mounted on the pivot pin (59) by means of a slotted bearing surface (82) which enables the lever (42) to be removed from the support element (40) only after the ampule (24) has been broken. In addition, when the device is used in a Pursuit Deterrent Munition (PDM) (12), the lever (42) may be connected to the safety pin (18) and the shorting bar (20) of the munition (12), causing both of those elements to be withdrawn when the lever (42) is pivoted.

Abstract: A safing and arming (S&A) device 20 for a spin stabilized projectile 16 having an electronic fuzing system 18 which produces an electrical arming signal after the projectile 16 is fired. The cylindrical S&A housing 26 has two faces 28, 30 and a blow through hole 32 through the center of housing 26. A barrier recess 34 is formed in one face 28 of the housing 26 and a detonator 40 is mounted on the other face 30 and in alignment with the blow through hole 32. A barrier 36 is pivotally mounted in the barrier recess 34. Barrier 36 is held in its safe position blocking blow through hole 32 by a set back tab 54 and a barrier latch 48. The set back tab 54 is rendered inoperative when projectile 16 is fired from a gun. Latch 48 is bent out of contact with barrier 36 by a pyrotechnic actuator 56 being activated by the arming signal. When latch 48 is disengaged from the barrier 36, barrier 36 is free to move to its armed position, in which barrier 36 no longer blocks blow through hole 32.

Abstract: A furnace for firing a non-precious metal paste including organic material, comprising a furnace enclosure, tube-like in shape, having a definable length. First and second ends of the furnace enclosure is open forming an entrance and exit, respectively. A cross-section across the length of the furnace enclosure has a flat base, a first and second vertical wall at each end of the flat base, and a roof, the shape of the roof being essentially the upper half of an ellipse. The interior chamber of the furnace is divided across the length of the furnace enclosure into a burnout zone and a firing zone, the entrance leading to the burnout zone, and the exit being nearest the firing zone. A sparging element distributes a mixture of an inert gas and at least one other gas within the burnout zone, wherein the other gas supports burnout of the organic material.

Abstract: An armor-penetrating ammunition assembly is provided with a multiple segment aluminum protective cap 26. The cap 26 is provided with a plurality of stiffening ribs 34, 34', 35, 35', and torque resisting tabs 40, 40' which rest in one of the grooves 37, 37' defined by the ribs 34, 34'. Additional stiffening is provided by rolled stiffening portions 36, 36' at the trailing end 32 of cap 28 and by longitudinal ribs 38, 38' at the longitudinal edges of each segment 28, 28' of the cap 26. Attachment structure is provided for forming a fixed interconnection between each segment 28, 28' of the cap 26 and a corresponding portion 19, 19' of the sabot 18. Thus, each segment 28, 28' of the cap 26 remains attached to a corresponding sabot portion 19, 19' as each portion 19, 19' of the sabot 18 separates from the penetrator 12 at muzzle exit without disturbing the flight of the penetrator 12.