Abstract: Alloys of the type Cu.sub.x Ge.sub.y wherein x is from about 60 to about 95 atomic percent and y is from about 5 to about 40 atomic percent are made ductile by the presence of appreciable amounts of an amorphous phase and a metastable, microcrystalline, solid solution single phase and are especially suited for fabrication of foil preforms for preplacement in the joint in a joining operation such as brazing.

Abstract: In the formation of cylindrically shaped heat regenerators from ceramic honeycomb structures for use in gas turbine engines, a gas-impervious seal of the peripheral honeycomb cells and a high strength outer ring are formed simultaneously in an apparatus which provides for surrounding the outer wall of the honeycomb structure with a castable ceramic composition suitable for forming the outer ring, contacting a peripheral area of the upper surface of the honeycomb structure defining a predetermined number of peripheral cell openings with a (different) ceramic slurry composition, evacuating the honeycomb cells whose openings are contacted with the slurry composition through corresponding openings in the lower surface of the honeycomb structure in order to promote flow of the slurry into the evacuated cells, thereby forming a gas impervious seal of these peripheral cells, while simultaneously vibrating the honeycomb structure and castable composition in order to promote flow and intimate contact of the castable c

Abstract: A photoflash lamp array comprising a plurality of high-voltage type flashlamps mounted on a printed circuit board containing circuitry for sequentially igniting the flashlamps in response to successive high-voltage firing pulses applied thereto. Each of the flashlamps has a pair of lead-in wires connected to the circuit board by eyelets which project through to the opposite side of the board, one lead of each lamp being connected via its respective eyelet to a common circuit conductor. Electrostatic protection is provided by a conductive shield of planar configuration disposed parallel to the circuit board and spaced therefrom on the side opposite that on which the lamps are disposed. Selected ones of the common circuit connected eyelets project from the back of the circuit board in a manner which maintains the spacing between the shield and circuit board, to prevent short circuiting of leads, and facilitates electrical connection of the planar shield to the common circuit conductor.

Abstract: An electrically conductive boat for the vacuum evaporation of metals comprises a refractory composition consisting essentially of a conductor of titanium diboride and/or zirconium diboride, a coconductor of silicon carbide and an insulator of boron nitride.

Abstract: Thermal lensing effects in a conductively cooled optically pumped laser rod are compensated by limiting the width of thermal contact between the rod surface and its supporting heat sink to an arc width of 70.degree. to 80.degree. and utilizing a simple cylindrical laser cavity mirror or mirrors. This limited heat sink contact produces nearly parallel isotherms in the rod which react with the laser beam so that it may be readily focused by a cylindrical beam focusing means in the laser optical resonator.

Abstract: The disposition of an array of color phosphor dots on a color cathode ray tube faceplate by conventional photo deposition techniques is facilitated by first coating the individual phosphor particles with polyvinyl alcohol modified with an amino acid such as glutamic or aspartic acid.

Abstract: An electronic ballast circuit includes a directly driven high frequency inverter circuit with a series resonant output circuit coupled to a load circuit having a high intensity discharge (HID) lamp and to a drive circuit dependent upon current flow in the load circuit. A starting circuit for the high frequency inverter is coupled to a DC source and to a charge storage and isolating circuit and provides initial energization to the high frequency inverter circuit. Also, a lamp starting circuit initiates increased conductivity of the high frequency inverter circuit which causes development of energy sufficient to "fire" an HID lamp whereupon a disablement circuit essentially removes the lamp starting circuit from the operational circuitry.

Abstract: A photoflash lamp having a glass envelope with a clear protective exterior coating comprising a photopolymer. In applying the coating, the lamp is dipped in a liquid photopolymer and then cure-hardened by a short period of irradiation with a source of ultraviolet light.

Abstract: In one aspect of the invention a process for affixing a self-supporting film of emissive materials in a binder to a cathode support member to provide a cathode for a cathode ray tube includes the steps of depositing at least one drop of a liquid mixture containing a solvent for the binder of the film onto a cathode support member, contacting the liquid mixture with the self-supporting film, and preferentially evaporating the liquid mixture to cause the binder of the film to affix the film to the cathode support member.In another aspect of the invention, an improved liquid mixture for affixing a self-supporting film of emissive materials in a binder to a cathode support member includes at least two liquids miscible in all proportions with one liquid essentially a non-solvent and another higher boiling liquid a solvent for the binder of the film.

Abstract: In one aspect of the invention a process for affixing a self-supporting film of emissive materials in a binder to a cathode support member to provide a cathode for a cathode ray tube includes the steps of depositing at least one drop of a liquid mixture containing a solvent for the binder of the film onto a cathode support member, contacting the liquid mixture with the self-supporting film, and preferentially evaporating the liquid mixture to cause the binder of the film to affix the film to the cathode support member.In another aspect of the invention, an improved liquid mixture for affixing a self-supporting film of emissive materials in a binder to a cathode support member includes at least two liquids miscible in all proportions with one liquid essentially a non-solvent and another higher boiling liquid a solvent for the binder of the film.

Abstract: An electrical connector comprises an insulating body having an external surface with an area on the surface provided for abutting a printed wiring board. A plurality of contacts are internal the insulating body with at least a few of the contacts extending to the area. Leads extending outwardly from the surface are at a location exterior the area. A plurality of conductive paths on the surface provide electrical connection between the contacts and respective leads whereby a portion of the surface is unobstructed by contact tails for abutting the edge of the printed wiring board. The surface itself may be formed as part of a printed wiring board.

Abstract: A method of applying a protective light-transmitting coating on the exterior surface of the glass envelope of a lamp, the method comprising: holding the lamp with its longitudinal axis disposed horizontally and rotating the lamp about its longitudinal axis; flow-dispensing a liquid coating material of a predetermined viscosity onto the rotating lamp envelope from a dispensing means including a profiled row of needles located above the lamp; and allowing the envelope coating to be cure-hardened, such as by irradiation. The method is particularly useful for applying an optically clear photopolymer coating on the glass envelope of a photoflash lamp in less than one second and then curing the coating by irradiation with a source of ultraviolet light.

Abstract: A high intensity arc discharge lamp has an arc tube the emission of which includes some harmful UV radiation. An outer envelope surrounds the arc tube and substantially blocks the harmful UV radiation. The lamp includes means to render the arc tube inoperative when the outer envelope becomes cracked or punctured sufficiently to admit air therewithin, the means including a pyrophoric material to initiate combustion of a current carrying portion of the lamp circuit.

Abstract: A high voltage terminal with a television receiver flyback transformer and other high voltage circuit components enclosed in a resin-filled, non-conductive container, the terminal comprised of a conducting tab partially surrounded by a plastic casing positioned to allow drilling from outside the container through primarily plastic materials and also comprising a conducting pin inserted in the hole to provide electrical contact with the tab.

Abstract: Digital noise detection circuit for detecting the presence of noise in digital diphase data and for producing an alarm signal in response to the detection of such noise. The digital diphase data is applied to circuitry from which a clock signal is extracted and processed to derive a first input signal at a first input of an alarm NAND logic gate. The clock signal is also employed by a digital phase lock loop circuit to produce a second signal at a second input of the alarm NAND logic gate which, in the absence of noise corrupting or otherwise affecting the diphase data, is out of phase with the signal at the first input of the alarm NAND logic gate. As a result, no alarm signal is produced by the alarm NAND logic gate.

Abstract: A composition for a brazing slurry which will form solid connections below 1600.degree. C. The composition comprises, by weight, about 21% to 22% fine particle tungsten; about 7% to 8% calcium oxide; about 5% to 6% silicon dioxide; about 5% to 6% titanium dioxide; about 3% to 4% aluminum oxide; and about 55.5 % to 57.5 % of an organic binder.The composition is well suited to attaching leads to metallized patterns formed on ceramic substrate and can also be employed as the pattern forming material.

Abstract: Y.sub.2 O.sub.3 :Eu red-emitting phosphor exhibits up to about 8 percent brightness increase upon cathode ray excitation and about 3 percent brightness increase upon UV excitation by the addition of about 250 parts per million of Mg(as MgO).

Abstract: An intrusion alarm system and method is provided which includes one or more sound pulse transmitters that are triggered upon the opening of an entryway, such as a door or window, to produce a high-intensity sound pulse having a decibel level above a predetermined minimum. For example, each transmitter may comprise a percussive photoflash unit in combination with a pyrotechnic device which responds to the radiant output of the fired photoflash unit to emit the intense sound pulse. A centralized detector responds to the sound pulse above a predetermined threshold level to produce an alarm signal. Preferably, the detector comprises an electroacoustical transducer arrangement which provides the dual functions of both sound pulse detection and generation of an audible alarm.

Abstract: A high-voltage type photoflash lamp having an ignition structure including an improved primer material with enhanced breakdown voltage characteristics for the reliable ignition of filamentary combustible material distributed within the oxygen-filled envelope of the lamp. The primer material comprises a particulate fuel such as zirconium powder, a binding agent such as nitrocellulose, and an additive of relatively coarse inert material which is nonconductive and insoluble in the vehicle used in the applied slurry. A preferred additive consists of glass microbeads having a particle size substantially larger than the zirconium powder used.

Abstract: An isolator circuit for use with a switching circuit for energizing a ballasted load in response to a control signal of preselected frequency superimposed on AC power circuits which supply the load. In the switching circuit, a triac is gated to conduct the AC power to the load by a circuit including an impedance element and a series resonant LC network tuned to the frequency of the control signal. The control signal may be one of a plurality of control signals having different frequencies superimposed on the power circuits. The isolator circuit is connected between the traic and the load and comprises a plurality of series connected parallel resonant LC circuits each tuned to block a respective one of the control signals. A series choke blocks spurious signal voltages.