Abstract: A fluorescent lamp utilizing a dual layer phosphor coating is disclosed and with the base layer employing a calcium halophosphate phosphor which has been modified to provide efficient lumen output at a substantially reduced coating weight. The top phosphor layer in said coating comprises a blend of narrow bandwith emitting phosphors at various coating weights primarily to improve the color rendering capability of these lamps.

Abstract: This invention relates to the preparation and use of supported, manganese sulfide promoted molybdenum and tungsten sulfide catalysts useful for hydroprocessing processes, particularly hydrotreating. These catalysts are prepared by heating a composite of support material and precursor salt under oxygen-free conditions and in the presence of sulfur, wherein said precursor salt contains a thiometallate anion of Mo, W or mixture thereof and a cation comprising one or more promoter metals which are chelated by at least one neutral, nitrogen-containing polydentate ligand, and wherein said promoter metal comprises Mn alone or a mixture of Mn with Co, Ni, Zn, Cu or mixture thereof.

Abstract: In an arc tube for a high intensity metal halide discharge lamp, a particular composition of metal halide dose is provided to control thorium transport to the electrodes within the arc tube and tungsten transport to the wall to improve arc tube performance.

Abstract: Hydrocarbon feeds are upgraded by contacting a feed, at elevated temperature and in the presence of hydrogen, with a self-promoted catalyst prepared by heating one or more catalyst precursors under oxygen-free conditions in the presence of sulfur at a temperature of at least about 150.degree. C. The catalyst precursors will be one or more compounds of the formula (ML) (Mo.sub.y W.sub.1-y S.sub.4) wherein M comprises one or more divalent promoter metals selected from the group consisting of Ni, Co, Zn, Cu and mixtures thereof, wherein y is any value ranging from 0 to 1 and wherein L is one or more neutral, nitrogen-containing ligands at least one of which is a chelating, polydentate ligand.

Abstract: This invention relates to the preparation and use of catalysts useful for hydroprocessing processes, such as hydrotreating, wherein said catalysts are formed by heating, at elevated temperature, in the presence of sulfur and under oxygen-free conditions, a composite of support material and one or more catalyst precursor salts containing a thiometallate anion of Mo, W or mixture thereof and a cation comprising one or more divalent promoter metals at least one of which is iron, wherein said promoter metal or metals are chelated by at least one neutral, nitrogen-containing polydentate ligand, and wherein said additional divalent promoter metal, if any, is selected from the group consisting of Ni, Co, Mn, Zn, Cu and mixture thereof.

Abstract: A molded glass reflector member for a lamp unit employing a tungsten halogen lamp as the light source is disclosed wherein the engagement means for mounting said lamp unit replaceably in a socket member includes a particular configuration of the hollow cavity portion of the said reflector member to enable improved lamp focus and physical retention of said lamp unit in its socket. Specifically, said hollow cavity end protruding from the rear side of said reflector member includes both a recessed engagement surface for mounting said lamp in the socket member so as to position the illumination emerging from said reflector member more accurately along with additional molded depressions located on opposing exterior surfaces of said elongated cavity which cooperates with said recessed engagement surface to still more accurately position the lamp in said socket member.

Abstract: A method and apparatus is disclosed to produce a blown glass envelope on a ribbon machine having a self supporting closed end, said article being of a unitary, integral construction with glass wall thickness substantially less than that found in conventional pressed glass envelope. Said ribbon formed glass envelope has a cylindrical neck portion terminating at one end in a bulb portion of larger cross sectional dimensions and which includes the self supporting base end. The sides of said glass envelope can be curved or flat and with said self supporting base also being of a curved or planar contour. A novel mold construction permitting said glass envelope to be blown on a ribbon machine comprises a pair of cooperative halves forming the sides of the blown glass envelope in a central cavity in which further includes a separate base part located at the lower end of the said cavity to shape the self supporting base, said base part of the mold being provided with reciprocal motion in a vertical direction.

Abstract: Hydrocarbon feeds are upgraded by contacting a feed, at elevated temperature and in the presence of hydrogen, with a supported self-promoted catalyst prepared by heating a composite of support material and one or more catalyst precursor salts under oxygen-free conditions and in the presence of sulfur at a temperature of at least about 250.degree. C. The precursor salt or salts will be of the general formula (ML) (Mo.sub.y W.sub.1-y S.sub.4) wherein M comprisess one or more promoter metals selected from the group consisting essentially of Mn, Fe, Co, Ni, Zn and mixtures thereof, wherein y is any value ranging from 0 to 1 and wherein L is one or more neutral, nitrogen-containing ligands at least one of which is a chelating, polydentate ligand.

Abstract: A fluorescent lamp utilizing a dual layer phosphor coating is disclosed wherein the base layer utilizes a first phosphor mixture and the top phosphor layer in said coating comprises a blend of narrow bandwith emitting phosphors to improve the color rendering capability of these lamps.

Abstract: Supported hydroprocessing catalysts comprising a sulfide of trivalent chromium and Mo, W or mixture thereof are obtained by compositing a preselected quantity of support material with a precursor comprising a mixture of (i) a hydrated oxide of trivalent chromium and (ii) a salt containing a thiometallate anion of Mo or W and a cation comprising the conjugate acid of at least one neutral, nitrogen-containing polydentate ligand and heating the composite in the presence of sulfur and hydrogen in an oxygen-free atmosphere. These compositions have been found to be useful hydrotreating catalysts having nitrogen removal activity superior to that of commercial catalysts derived from cobalt molybdate on alumina.

Abstract: Supported hydroprocessing catalysts comprising a sulfide of trivalent chromium and molybdenum or tungsten which optionally may contain one or more promoter metals such as Co, Fe, Ni and mixture thereof. These catalysts are obtained by compositing a preselected quantity of support material with a precursor salt containing a tetrathiometallate anion of Mo or W and a cation comprising trivalent chromium and, optionally, one or more promoter metals wherein both said trivalent chromium and promoter metal are chelated by at least one neutral, nitrogen-containing polydentate ligand and heating the composite in the presence of sulfur and hydrogen in an oxygen-free atmosphere. These catalysts have high selectivity for nitrogen removal. The chromium and promoter metal do not have to be in the same cation.

Abstract: A transport tray for ribbon formed glass articles such as lamp glass envelopes and glass containers is disclosed which permits increased packing density to be achieved when the article containing trays are vertically stacked for shipment. The tray member comprises a flat sheet having cavities formed therein which partially enclose one side of the individual glass articles when inserted therein and with the location of said cavities being defined by at least one central row having the glass articles aligned alternately in opposite longitudinal directions, together with a row of said glass articles being located at each end of said central row wherein the individual glass articles are aligned in a longitudinal direction transverse to the longitudinal direction of the glass articles in said central row. These trays are thereafter stacked vertically whereby adjoining trays are rotated approximately 180.degree. with respect to each other for the increased packing density.

Abstract: An improved electrical discharge machining electrode permitting improved cutting action to be achieved at the same level of electrical power being applied to the wire electrode. Such improvement is attributable to a particular configuration and the material being employed in the wire electrode which has an iron alloy core coated with an intermediate layer including a copper and zinc heat reaction product on which is deposited an adherent carbon surface coating. The improved method and apparatus for employment of this electrode is also described along with one method to form the multilayer coating on the electrode wire core.

Abstract: A voltage surge suppression circuit employs two series connected metal oxide varistors and a power interrupter to provide suppression of all modes of voltage surge while providing protection against failure of either metal oxide varistor. An indicator is provided to indicate the status of the circuit to the user.

Abstract: A glass composition specially useful in the glass envelope of TV receiver tubes and which is of the lead silicate type is disclosed comprising in weight percent 30-65% SiO.sub.2, 20-40% PbO, 5-20% alkali metal oxides, 0-2% Al.sub.2 O.sub.3, 0-10% alkaline earth metal oxides, 0.2-2% Sb.sub.2 O.sub.3, and 0.1-0.5% CeO.sub.2. The improvement resides in employment of a novel refining system when the glass is formed which employs Sb.sub.2 O.sub.3, niter and CeO.sub.2 as the refining agents in particular weight proportions to reduce the seed count in the molten glass while also reducing thermal shock breakage when the solid glass product is thereafter thermally reworked.

Abstract: An aluminosilicate glass composition is disclosed which is particularly useful for direct fusion sealing to both molybdenum and tungsten metals. The present glass composition provides an improved high temperature lamp envelope by reason of its reduced seed or bubble content. A minor amount up to approximately 3 weight percent ZrO.sub.2 is included in the glass as a refining agent to reduce the glass seed count and the glass further exhibits a higher strain point for less stress when the high temperature lamps are operated.

Abstract: A middle distillate hydrocarbon fuel boiling in the range of about 160.degree. C. to about 400.degree. C. having an improved cetane number is disclosed. The fuel comprises at least about 3 weight percent oxygenated compounds preferably at least about 3 weight percent oxygenated aromatic compounds. The oxygenated compounds preferably comprise alkylaromatics and/or hydroaromatics, preferably oxygenated at the benzylic carbon position.

Abstract: A boxboard carton for fragile articles such as a glass electric lamp is shaped so that when the object is within the carton the carton will have an octagonal shape and include intermediate supporting panels to engage one end of the lamp and an end closure construction such that end panels will engage the end of the lamp and inner locking panels will engage the sides of the lamp to form an interference fit between the carton panels and the lamp thereby preventing movement of the lamp relative to the carton.

Abstract: A fluorescent lamp utilizing a four component phosphor combination is provided producing efficient white color illumination at a lower cost than conventional phosphor coatings of the same type. A lamp color temperature of approximately 3500.degree. K. is produced with a blend containing two strontium apatite phosphors, one strontium orthophosphate phosphor and a calcium haloapatite phosphor. The strontium phosphors are blended in weight proportions to match the white color emission point of the calcium haloapatite phosphor component in said blend.

Abstract: An improved electrical discharge machining electrode permitting increased cutting speed of the metal workpiece being machined and which improves the operation of the electrical discharge machining equipment in other respects. The improvement is atrributable to an adherent carbon surface coating deposited on an electrically conductive metal wire length which serves to transfer energy efficiently to the workpiece from the spark discharge as well as enhance the flushing of materials removed by said discharge during the machining operation. The method and apparatus for employment of said improved electrode is also described.