Abstract: This device provides for a substantially orthogonal transition or connection point between a strip transmission line configuration (one conductor, or two conductors sandwiched around a dielectric support, positioned in air between two ground planes such as might be used in a microwave antenna feed network) and a coaxial line section. The particular construction of the "side-launch transition" suppresses spurious parallel plate modes, and, in the case of two conductors surrounding a dielectric, trapped modes which occur between the two conductors. A U-shaped upper "dam" and corresponding lower "dam," electrically interconnected at several points, surround the termination of the stripline conductor(s) and provide suppression of parallel plate molding at the transition. In the case of two conductors surrounding a dielectric, electrical interconnection at the terminal point of the stripline conductors suppresses the trapped modes before they can be launched.

Abstract: This specification discloses an ammunition round and a method of firing the ammunition round. Consecutive and reproducible firing of a primer charge and a main propellant charge is accomplished as a result of the physical movement of a divider physically separating the primer charge from the main charge. Firing of the primer charge causes movement of the divider, initiates movement of a projectile within the ammunition round, and, when the combustion gases of the primer charge are in communication with the main propellant charge, causes firing of the main propellant charge.

Abstract: This specification discloses a cryostat assembly for a refrigerated infrared detector unit which includes an interior recess having therein a coolant conduit. The recess is partly bounded by a cylindrical wall and the coolant conduit has an exit nozzle which releases coolant tangential to the wall so that the noise of the coolant impact against the walls of the recess is reduced. Further, the coolant conduit is electrically conductive and has sufficient surface area to remove electrostatic charge from the coolant. The reduction of acoustical noise of the coolant impact against the recess walls and the discharge of an electrically charged coolant permits elimination of an electrically conductive coating on the walls of the recess and greatly simplifies production. Still further, the positioning of the coolant conduit and coils abutting the recess boundary serves to support and position the conduit exit nozzle.

Abstract: In a system employing a collimated beam projector radiating energy of a single wavelength and an image detector sensitive to a band of wavelengths, a boresight technique includes the steps of extracting a portion of the projected beam, focusing the extracted portion onto a predetermined point of a boresight target material until said material responsively emits radiation in said band of wavelengths, and collimating the emitted radiation into said image detector at a field of view location corresponding to the projected beam location.

Abstract: Improved tracer rounds and compositions therefor comprising a rubbery, particulate mixture having magnesium, polytetrafluoroethylene and advantageously other ingredients coated with copolymer of hexafluoropropylene and vinylidenefluoride, optionally containing ingredients such as carbon black, and providing advantages in preparation (e.g., lower consolidation pressures) and use (e.g., more uniform burning after ignition).

Abstract: A fuse assembly having a dielectric base plate and a fuse strip laminated to the base plate. The fuse strip comprises a bus bar and one or more spaced contact portions each joined by a fuse link to the bus bar. At the end of each fuse link the laminate is apertured to receive a fuse clip. The fuse clip is insertable in the aperture and is constructed and arranged to have clamping engagement with the base plate and fuse strip. The fuse clips associated with each fuse link are provided with aligned fuse retention means adapted to receive a substitute fuse link device for electrically bypassing an open fuse link in the fuse strip.

Abstract: A pointing error compensating device for compensating the error induced in a position indicator as a result of forces acting on a structure, such as gravitational forces acting on a large antenna having a reflecting dish, that is pivotal about an elevation axis.The error compensating device comprises a torque producing device having a moment arm in the form of an eccentric mass attached to a shaft coupled to the structure, the shaft being rotatable in response to a pivotal movement of the structure. The shaft is also coupled to a drive shaft of the position indicator. The eccentric mass is attached to the transmission shaft in such a manner that it applies a torque to the latter which is proportional to the cosine of the angular orientation of the structure about the elevation axis. The transmission shaft is deflected torsionally by the eccentric mass in an amount which is designed to be approximately equal and opposite to the error which otherwise would be induced into the position indicator.

Abstract: This application discloses a secondary fuel cell having improved electrode zones. Each cell has two electrode zones each containing a pair of electrode structures. A first such electrode structure in each zone is more efficient in operation during discharge of the fuel cell. Electrical structure is provided so that the first electrode structures are utilized during charging of the fuel cell and the second electrode structures are utilized during discharge of the fuel cell. The size and configuration of each of the electrode structures is a variable depending upon the particular cycle the fuel cell is to be subjected to in operation.

Abstract: Shunt modulator for high current arc lamp using series-connected voltage source, first transistor switch, inductor, and lamp. Whenever second transistor modulating switch in shunt with lamp is turned off, voltage surge from inductor fires lamp and first switch is turned on. When inductor current exceeds threshold, first switch is turned off and flyback diode provides return path for inductor current.

Abstract: In an automotive system, using two batteries, a series connection is employed to obtain high engine starting energy. A novel regulator circuit is employed to charge the second or auxiliary starting battery without resorting to the manipulation of heavy duty switch contacts.

Abstract: 1. In a guiding and propulsion system for a missile, the combination which comprises:Communication means mounted in a central portion of the missile toward the aft end thereof and effective to receive and emit radiant energy along a rearward line of view substantially axial of the missile, to guide the missile, andNozzle means mounted on said aft end to propel the missile by generally rearward discharge of fluid, said nozzle means being canted outward from said central portion to keep said line of view free from said fluid.

Abstract: Method for forming a bond (hermetic seal) between sapphire and glass. In the preferred form of the invention, the sapphire and glass surfaces to be bonded each have applied to them thin films of chromium, copper, nickel and gold. The inner chromium film is several hundred angstroms thick, the copper and nickel films have a total thickness of about 10,000 angstroms and together comprise an intermediate film, and the outer gold film is about 20,000 angstroms thick. The thin films are applied in a vacuum by direct evaporation or vapor plating or by sputtering. A bond or hermetic seal is effected between the gold films on the respective sapphire and glass materials. An indium wire is inserted between the gold films and a clamping force is applied to the sapphire and glass materials to cause the indium wire to deform to increase substantially the indium surface area. In a vacuum, heat is applied to the sapphire, glass and indium materials sufficient to cause the indium to liquify.