Abstract: Dispersion strengthened copper leads are used for inner and/or outer leads in electric lamps.

Abstract: The present invention relates to a silicone lubricant composed of an organopolysiloxane polymer and an effective amount of chlorinated phosphite or phosphonate. Such a lubricant composition is especially effective for lubricating soft metals such as copper or bronze and for improving dimethylpolysiloxane lubricants.

Abstract: A short-arc discharge lamp having a pair of electrodes sealed through stems into a bulb, and an external starting device comprising an electrical conductor extending from the vicinity of the stem of one of the electrodes to the vicinity of the stem of the other electrode.

Abstract: High pressure sodium vapor lamps containing sodium or both sodium and mercury are raised in color temperature and improved in color rendition by pulse operation. During the pulse there is considerable enhancement and broadening of the sodium lines at 449, 467, 498 and 568 nm and the development of a continuum from 400 to 450 nms, and also the appearance of visible mercury lines in lamps containing mercury. Optimum results with lamps in size ratings from 50 to 1000 watts are obtained with pulse repetition rates from 500 to 2000 Hz and duty cycles from 10 to 35%. The color temperature may be increased from the common value of 2050.degree. K to 2500.degree. K with reduction in lamp efficacy of only about 20% from conventional 60 Hz operation. Even higher color temperatures may be obtained if further reduction of efficacy is acceptable.

Abstract: A photoflash lamp array comprising a plastic housing containing flash lamps positioned over a circuit board carrying switching circuitry for sequentially firing the flash lamps. The circuit board is made of transparent electrically insulating material having a light-reflecting coating on its rear for reflecting light when the lamps are flashed. The front of the housing is provided with prisms to improve the distribution pattern of light when the lamps are flashed.

Abstract: An electrode-inlead assembly comprises a small tungsten pin which is joined on axis to a fine molybdenum wire adapted to sealing through fused silica. The join is effected by a laser butt weld which permits a symmetric compact seal thereby making possible very small discharge envelopes having minimum end losses. The seal may be effected either by a foliated portion in the wire which is wetted by fused silica, or by a glass bead formed around the wire which wets both wire and fused silica.

Abstract: Flash lamp lead-in wires are embedded in a circuit board and are in contact with circuit runs carried by the board. The end of one lead-in wire of at least one of the lamps extends from the circuit board and makes electrical contact against a sheet-like shield member. In a preferred method the lead-in wires of a lamp are driven through the circuit board by ultrasonic drivers offset from each other so as to drive against one lead-in wire closer to its end than is the other.

Abstract: A photoflash lamp array comprising a plastic housing containing flash lamps positioned over a circuit board carrying switching circuitry for sequentially firing the flash lamps. The circuit board is made of an electrically insulating material having a light-reflecting surface for reflecting light when the lamps are flashed. The front of the housing is provided with prisms to improve the distribution pattern of light when the lamps are flashed.

Abstract: The present invention relates to a multiplication logic for signed multiplication of two numbers to obtain a double precision product in two's complement notation, each quantity being in serial form with the least significant bit first. The multiplier may be in either two's complement, sign magnitude, or unsigned notation, and the multiplicand in two's complement notation. With adjustment of a timing waveform, the multiplication logic will accommodate multiplicands of any word length and also various multiplier word lengths below a design maximum. With shorter multipliers, separate provisions are made for entry of the sign. The logic contains integrated timing responsive to the externally supplied timing waveform, a measure which simplifies application as operands are varied. The multiplication logic is suitable for use in a large number of digital applications including digital filters, correlation, convolution, squaring and polynomial evaluation.

Abstract: Fuse elements are used with a circuit board to provide more reliable sequential firing in a flash lamp array. The circuit board includes the lamp firing circuitry along with radiation switches connected in said circuitry and the fuse elements cooperate with said radiation switches in the circuit operation. Fuse elements are deposited on the circuit pattern adjacent to the flash lamps for actuation by radiation being emitted therefrom and the activated fuse elements interrupt the circuit path by thermal action. In a preferred embodiment, the circuit board is constructed from an organic polymer and the fuse elements are deposited at circuit locations wherein the underlying substrate has a thickness less than the substrate thickness elsewhere to produce holes in the circuit board by melting or thermal decomposition.

Abstract: A photoflash lamp array comprising a housing elongated vertically and containing elongated flash lamps lying horizontally and stacked vertically, the flash lamps having lead-in wires extending from ends thereof near the sides of the housing and connected to a circuit board located behind the lamps. A conductive sheet-like shield is positioned between the circuit board and the rear of the housing and is contoured to have side portions extending frontwardly and between the lamp ends and the sides of the housing. Electrically insulative flash indicator material is positioned on the front surface of the shield and extends along the inside surfaces of the shield's frontwardly extending portions so as to prevent the lamp's lead-in wires from becoming shorted against the shield.

Abstract: A parts feeder is disclosed in which randomly grouped parts are stored, oriented and discharged at a uniform rate from a rotating or indexing spacer wheel fed by stepwise movable supply apparatus having the rotating spacer wheel as its frame of reference.

Abstract: Lead wires having a specified stiffness, ie. stress/strain, characteristic are described for use in an incandescent lamp.

Abstract: A low moisture vapor transmission rate room temperature vulcanizable silicone composition comprising a silanol end-stopped diorganopolysiloxane with optionally a reinforcing or extending filler, an alkyl silicate crosslinking agent or in the alternative a co-polymer composed of monofunctional and tetrafunctional units and a catalyst which is the metal salt of carboxylic acid such as dibutyl tin dilaurate where the improvement comprises having in such a composition from 75 to 150 parts by weight of a vapor barrier filler which is mica with optionally up to 30% by weight of said vapor barrier filler being talc, wherein the above concentration of filler is based upon 100 parts of the silanol end-stopped diorganopolysiloxane polymer. Also in the present invention there is envisioned as SiH Olefin platinum catalyzed composition which has the foregoing mica as a vapor barrier filler.

Abstract: The present invention relates to a one-component room temperature vulcanizable silicone composition which has a low moisture vapor transmission rate which is accomplished by mixing with a silanol-terminated diorganiopolysiloxane Polymer from 75 to 150 parts of mica with optionally up to 30% by weight of talc, per 100 parts of the silanol-terminated diorganopolysiloxane polymer. In this composition there can be utilized any of the known cross-linking agents for one-component room temperature vulcanizable silicone rubber compositions such as, acyloxy functional silanes, alkoxy functional silanes, ketoximino functional silanes, amide functional silanes, tert-alkoxy functional silanes and amine functional silanes.

Abstract: A silicone molding composition with improved thermal shock resistance having a plasticizing amount of a silicone resin comprising chemically combined RSiO.sub.3/2 units and R.sub.2 SiO units where the R to Si ratio may vary from 1.0 to 1.9 and the ratio of RSiO.sub.3/2 units to R.sub.2 SiO units may vary from 1:2.5 to 1:5.0 and containing less than 0.5 weight percent of silanol groups and preferably being substantially free of silanol groups where R is a monovalent hydrocarbon radical. There is also provided by the present invention a process for improving the thermal shock resistance of a silicone molding composition by having in said composition the aforesaid resin.

Abstract: An immersible liquid densitometer is disclosed employing an immersible vibrator. The vibrator includes one or two masses which are resiliently supported and which contain perforations which fill when the vibrator is immersed in the liquid. When the vibrator is immersed, the frequency of vibration is affected in proportion to the density of the liquid filling the perforations. Thus, measurement of the frequency of vibration may be used to determine the density of the immersing liquid. For maximum accuracy, the configuration and vibratory mode of the masses are selected for minimum energy coupling to the liquid. Typically, a cylindrical configuration is selected vibrating in a rotational mode. Under these conditions, the drag during vibration is due primarily to skin friction and a high Q, high accuracy measurement is achieved.

Abstract: An improved pressed glass lens member for a sealed beam lamp unit is provided to include an outer sealing rim of varying thickness to compensate for thermal contraction of the lens member when molded in a predetermined manner. Specifically, the ordinary warped condition encountered with thermal contraction of the pressed glass article when initially formed is compensated for so as to permit subsequent heat sealing with a pressed glass reflector member by thermally fusing the glass material of both members in the sealing regions and without encountering the manufacturing defects now being experienced. The preferred embodiments illustrate such controlled thickness variation of the body section in the outer sealing rim region of a pressed glass lens member for both circular-shaped and rectangular-shaped lens configurations.

Abstract: A multiple photoflash system is provided which employs a high voltage type flashlamp construction, including a shorting primer material. The primer material is converted to a conductive residue upon ignition of flashlamp to provide a short circuit path between spaced apart inleads of the lamp. Further series connection of the individual lamps in the flashlamp system which are operatively associated with switching devices to provide an open circuit condition upon flashing of the associated lamps permits sequential flashing. The particular primer material which enables the flashlamp system to be operated in this manner comprises a solid mixture of a combustible metal fuel and an oxidizer for the fuel such as alkaline metal chlorates and perchlorates, and which further contains particular proportions of various combustion supporting oxides.

Abstract: The invention relates to an arithmetic unit fabricated by large scale integration techniques and to an improved digital network of increased accuracy in which the unit finds application. The integrated circuit comprises an initial summing means, rounding means, full precision multiplication logic and three successive summing means, all elements being successively connected, and all except the first having both internal and external input terminals. The unit is flexible in respect to the length of the operands and their sign notation. The terminals are readily cascaded, permitting interconnection of the unit with like integrated circuit units and with external delay elements. The invention is applicable in a variety of complex operations including digital filtering, correlation, convolution, polynomial evaluation and squaring. In many of these applications, mixed precision and rounding provide increased accuracy in the resulting digital networks.