Abstract: A catalyst comprised of platinum, copper, selenium and halogen, composited with an inorganic oxide support or carrier, preferably alumina. The catalyst is one which possesses an intrinsically high activity, is stable and can operate at reforming conditions at high severities.

Abstract: Apparatus for mounting on the front of a tractor, combine or other land vehicle which is useful for gathering chunks, twigs, branches or other debris from the soil. The apparatus, constituting a chunk gathering machine, is comprised generally of the combination of a rotary rake mechanism and a collection means, or pan, into which chunks, twigs, branches or other debris is swept by the rotary rake mechanism as well as means for dumping, or discharging, the collected debris.

Abstract: A process wherein a particulate mass of a metal alumina spinel, MAl.sub.2 O.sub.4 wherein M is chromium, iron, cobalt, nickel, copper, cadmium or mercury, particularly zinc alumina spinel (ZnAl.sub.2 O.sub.4), is contacted with a process stream which contains sulfur, sulfur compounds, and other contaminants, these being adsorbed onto said particulate mass of metal alumina spinel, and the process stream thereby denuded of said sulfur, sulfur compounds, and other contaminants. Thereafter, the sulfur, sulfur compounds, and other contaminants, are readily desorbed, or removed from said particulate mass of metal alumina spinel by contacting, and purging same with a relatively clean gas stream, suitably hydrogen, hydrogen-containing gas, or an inert gas, at elevated temperature.

Abstract: An improved, and more objective, eye depth perception testing apparatus wherein the eyes of a patient are tested by observing test specimens, posts or pegs of varying colors, varying shapes, varying lateral spacings, and at different lighting conditions. The apparatus, in its preferred aspects embodies a housing upon a floor or ceiling of which is provided parallel tracks within which is mounted a pair of carriers which carry transverse holders which carry a pair of pegs the lateral spacing of which can be adjusted to different widths. These pegs, the movement of which is controlled by the patient, being tested, are exchangeable, vary in color and cross-sectional shape. The walls of the apparatus are mirrored, and the inside of the apparatus is provided with a source of light which can be varied over a range of illuminations of varying intensity. The mirrors disperse the light, and eliminate reference sources, or points, this creating greater objectivity in the testing.

Abstract: Apparatus useful for blending predetermined accurately measured quantities of gaseous components transferred from separate pressurized supply tanks to a gas blending system, preferably on input signals received from a computer. The gas blending system includes a mixing vessel, a pressure transducer associated with said vessel for measuring the pressure of the gases, and producing an output signal and transmitting same to the computer, a circulating pump connected in series via conduits which form a circuit, and valves; preferably a multi-component valve assembly operatively communicating the two ends of the conduits for flow of gas therethrough in providing the functions of purging gas from the system, evacuating the system of gases, admixing the gaseous components received from the pressurized supply tanks to form the gaseous blend, and producing a product output blend of the admixed gases.

Abstract: Apparatus, useful for blending predetermined accurately measured quantities of gaseous components transferred from separate pressurized supply tanks to a gas blending system, preferably on input signals received from a computer. The gas blending system includes a mixing vessel, a pressure transducer associated with said vessel for measuring the pressure of the gases, and producing an output signal and transmitting same to the computer, a circulating pump connected in series via conduits which form a circuit, and valves; preferably a multi-component valve assembly operatively communicating the two ends of the conduits for flow of gas therethrough in providing the functions of purging gas from the system, evacuating the system of gases, admixing the gaseous components received from the pressurized supply tanks to form the gaseous blend, the producing a product output blend of the admixed gases.

Abstract: This invention relates to improvements in a process for the preparation of a magnetic catalyst, particularly a magnetic reforming catalyst. In such process, a Group VIII noble metal is incorporated within an inorganic oxide particulate mass, suitably by impregnation of preformed particles. The metal-containing inorganic oxide particulate mass, in the desired proportion, is then admixed with magnetic alloy particles, notably iron or cobalt, and an inorganic oxide precursor which serves as a binder, to form a particulate composite mass comprised of particles of magnetic alloy dispersed as inclusions within an inorganic oxide matrix.

Abstract: A novel catalyst composition, and process for the preparation of magnetic, catalytic composites to improve catalytic metals utilization. A particulate magnetic alloy of iron or cobalt is contacted with a phosphate ion containing solution and reacted therewith sufficiently to form a surface film thereupon, removed from said solution, preferably dried, then admixed or otherwise incorporated within an inorganic oxide matrix, notably alumina, as inclusions, the composite particle is then contacted with a solution which contains a compound, or compounds, of a Group VIII noble metal, notably platinum, which is deposited within the composite particle in catalytically effective amounts without significant loss of the catalytic metal due to surface deposition of the catalytic metal upon said particulate magnetic alloy inclusions.

Abstract: Apparatus for sampling fluids, i.e. liquids or gases, or both, from a supply source. The apparatus comprises an adapter unit inclusive of a pair of tubular sections, or members, detachably engaged one with the other, each contains communicating inlet and outlet channels, respectively, and each has valve elements for opening and closing the channels. One tubular section of the adapter unit can thus be located at the fluid supply source, and the other adapted for connection to a portable supply container such that, when the valve elements are opened, fluid from the supply source will fill the container and, after the container is filled, the valve elements of the two sections of the adapter unit can be closed to shut off the fluid supply as well as close off fluid communication between the two tubular sections.

Abstract: A catalyst constituted of a composite which includes hydrogenation-dehydrogenation components comprised of palladium and platinum in total concentration ranging from about 0.2 to about 0.6 percent, in molar concentration of palladium:platinum ranging from about 1:1 to about 10:1 composited with an inorganic oxide support. In its preferred aspects the catalyst composite also contains rhenium, and more preferably a small amount of copper is added to suppress hydrogenolysis, which is particularly acute in reforming during the early period of operation when the catalyst is placed on stream, i.e., at the startup of a reactor; and process of employing such catalysts in reforming.

Abstract: A catalyst constituted of a composite which includes hydrogenation-dehydrogenation components comprised of platinum and rhenium to which a small amount of copper is added to suppress hydrogenolysis, which is particularly acute in reforming during the early period of operation when the catalyst is placed on stream, i.e., at the startup of a reactor; and process of employing such catalyst in reforming.

Abstract: A novel catalyst precursor which comprises a Group IV-B transition metal oxide deposited on the surface of an inorganic metal oxide support, preferably alumina; especially where the Group IV-B transition metal oxide is deposited on the support surface as discrete areas separated by areas of support surface which contain little, if any, of said Group IV-B transition metal oxide; and a catalyst composition comprised of a cluster of a Group IV-B transition metal oxide and a Group VIII metal preferably a Group VIII noble metal, deposited on an inorganic metal oxide support, particularly an alumina support, especially where the clusters are deposited on the surface of the support, as discrete clusters separated by areas of support surface which contain little, if any, of said Group VI-B transition metal oxide, or clusters of said Group IV-B and Group VIII metals.

Abstract: An improved catalyst, and process utilizing said catalyst for catalytically cracking a sulfur-containing hydrocarbon feed, and for the fixation of sulfur by the catalyst and transfer thereof from the catalyst regeneration zone to the reaction zone of a catalytic cracking unit. The catalyst comprises an admixture of composite particles, one present in major concentration for providing principally cracking and combustion promoting functions, and the other present in minor concentration for providing principally sulfur fixation and transfer functions. The particle present in major concentration, on the one hand, is constituted essentially of one or more Group VIII noble metals, preferably platinum, composited with a support comprised of a crystalline alumino silicate component distributed in an active cracking catalyst matrix, suitably one constituted of silica-alumina.

Abstract: An improved catalyst, and process utilizing said catalyst for catalytically cracking a sulfur-containing hydrocarbon feed, and for the fixation of sulfur by the catalyst and transfer thereof from the catalyst regeneration zone to the reaction zone of a catalytic cracking unit. The catalyst comprises an admixture of composite particles, one present in major concentration for providing principally cracking and combustion promoting functions, and the other present in minor concentration for providing principally sulfur fixation and transfer functions. The particle present in major concentration, on the one hand, is constituted essentially of one of more Group VIII noble metals, preferably platinum, composited with a support comprised of a crystalline alumino silicate component distributed in an active cracking catalyst matrix, suitably one constituted of silica-alumina.

Abstract: Novel regenerable catalyst-reagents, and a new and improved process utilizing said regenerable catalyst-reagents, for the conversion, and oligomerization of hydrocarbons, notably methane, at relatively low temperatures to produce products rich in ethylene or benzene, or both, usually in admixture with other hydrocarbons; and process for the regeneration of said catalyst-reagents.

Abstract: A process for the synthesis of copper-containing catalysts by preforming an inorganic oxide support, or carrier, preferably an alumina support, impregnating said support with a copper-containing halogen acid solution, neutralizing said halogen acid treated copper-containing support, and then impregnating said neutralized support with the desired hydrogenation-dehydrogenation components.

Abstract: A novel catalyst precursor which comprises a Group IV-B transition metal oxide deposited on the surface of an inorganic metal oxide support, preferably alumina; especially where the Group IV-B transition metal oxide is deposited on the support surface as discrete areas separated by areas of support surface which contain little, if any, of said Group IV-B transition metal oxide; and a catalyst composition comprised of a cluster of a Group IV-B transition metal oxide and a Group VIII metal preferably a Group VIII noble metal, deposited on an inorganic metal oxide support, particularly an alumina support, especially where the clusters are deposited on the surface of the support, as discrete clusters separated by areas of support surface which contain little, if any, of said Group VI-B transition metal oxide, or clusters of said Group IV-B and Group VIII metals.

Abstract: An aquatic fishing lure, or bait, as an article of manufacture, for use with a rod, line and hook, and usually a reel. The lure is comprised of an elongate body over the length of is extended is extended a thin, flexible dorsal fin, or membraneous-like member which, when the lure is placed in water and moved relative thereto, the fin will undulate or ripple to simulate life-like action. Generally, the fin extends over at least one-half, and preferably from about 75 percent to 95 percent of the length of the elongate body. The elongate body member is constituted of a rigid, semirigid or flexible material, and in its most preferred form is constituted of a flexible plastic material, notably worm plastic. The elongate body, in a preferred embodiment, is worm-like in appearance, and provided with striae, which provide a body of knobbed appearance.

Abstract: A process for desensitizing a hypersensitive, high activity reforming catalyst for suppression of hydrogenolysis which is particularly acute during the early portion of the period that the catalyst is placed on stream, i.e., at the startup of a reactor. The catalyst is constituted of a composite which includes a Group VIII noble metal hydrogenation-dehydrogenation component, notably platinum, and iridium or rhenium, or both, selenium, and sulfurous acid or sulfuric acid, or both. Hydrogenolysis is suppressed by use of the catalyst during reforming.

Abstract: In an improved diving helmet, or diving helmet assembly, of the type having a seal characterized as a flexible diaphragm, usually an annular diaphragm which seals about the diver's neck to close off the helmet and provide an interface between the water and the diver's breathing gas, improvements characterized as means associated with said flexible diaphragm for sensing changes in the physical position of said diaphragm caused by the differential pressure between said ambient water pressure and said helmet pressure, and actuating means responsive to said sensing means for opening and closing a valve to regulate helmet gas pressure. The said actuating means is located in said gas supply inlet for regulating the flow of breathing gas into the helmet or in said gas exhaust outlet for regulating the flow of exhaust gas from the helmet, or both, such that the ingress or egress of gas to or from the helmet is regulated and directly proportioned to the differential pressure sensed by the flexible diaphragm.