Abstract: A honeycomb structure for a diesel engine or an automotive engine where the wall thickness is varied in a controlled manner from the front surface to the back of the honeycomb. One example is grading the web thickness continuously from thin webs on the front of the DPF to thick webs on the back of the DPF. Another example is to make a two layer honeycomb with thinner walls and/or perhaps even lower cell density on the upstream side of the honeycomb. This provides a lower thermal mass front while retaining the thicker webs and higher thermal mass at the back of the honeycomb. The honeycomb structure has a thermal mass or heat capacity ranging from above 8.5×10−3cal/cubic cm-K to below 0.25 cal/cubic cm-K along an axis from the inlet end to the outlet end.

Abstract: Assembly and method of installing an electrode of a predetermined size and configuration in an electric heater envelope having an electrode opening at a preselected position. The assembly and associated method consist of affixing a hollow compression fitting about or within the electrode opening and providing a sleeve of a refractory deformable dielectric material within the fitting through which the electrode passes into the envelope. Dielectric spacing means are positioned between the electrode and electrically conductive portions of the fitting or envelope to prevent electrical conduction therebetween. Compression fastening means are then provided, securable to the fitting, to impart sufficient compressive force to the assembly to deform the sleeve about the electrode, thereby effectively sealing and securing the electrode within the fitting without the electrode grounding against the fitting or the envelope.

Abstract: A sintered metal body is disclosed of composition consisting essentially of in weight percent about 5 to 40 Cr, about 2 to 30 Al, 0 to about 5 special metal, 0 to about 4 rare earth oxide additive, and the balance Fe group metal and unavoidable impurities,the composition including at least one component selected from component A and/or component B, component A being special metal, and component B being at least an effective amount of rare earth oxide additive,the special metal being a first special metal component, and optionally, a second special metal component when rare earth oxide additive is 0, the first special metal component consisting of at least one of: Y, lanthanides, Zr, Hf, Ti, Si, and B, and the second special metal component consisting of at least one of: alkaline earth metal, Cu, and Sn, and the special metal being a third special metal component when rare earth oxide additive is >0, the third special metal component consisting of at least one of Y, lanthanides, Zr, Hf, Ti, Si, alkaline ear

Abstract: A method is presented for uniformly heating plastically deformable material, which comprises particles of electrically conducting matter. This method comprises inducing an electric current, or causing hysteresis loss within such material, by using electromagnetic radiation with frequency between about 50 Hertz and about 10 MegaHertz, to cause heating of the material.

Abstract: A mounting assembly is disclosed for a metallic honeycomb resistance heater structure wherein a pair of complementary ceramic honeycomb structures are utilized on opposite sides of the metallic honeycomb structure to not only mechanically support the same within an enclosing housing, but also to electrically insulate the resistance heater from such housing.

Abstract: Novel method and structure is disclosed for strengthening and mounting sloted metallic honeycomb structures by positioning rod members within the slots to prevent the slots from closing or deforming, and by utilizing the rod members to precisely engage positionable restraining inserts of an enclosing housing, so as to accurately mount the honeycomb structure within the housing.

Abstract: Ceramic honeycomb structures having channels that are selectively sealed at alternate faces of the honeycomb are prepared by applying an end cap made up of green ceramic material to each face of a green ceramic honeycomb body, followed by exposing the openings of certain channels of the honeycombs through the cap at one face and exposing the remaining channels through the cap at the other face. Thereafter, the composite capped structure is fired. The honeycombs are useful in a variety of filtering, separating, or concentrating operations in which a work fluid or component thereof is intended to pass through the walls of the channels.

Abstract: Ceramic honeycombs made of a ceramic material of a solid electrolyte nature having at least some of the honeycomb channels sealed at one of the faces are useful for the concentration or separation of oxygen from air or other oxygen-containing gaseous mixture. The oxygen-containing gas is introduced into a first set of channels at one face of the honeycomb, a first voltage is applied to the interior walls of those channels, and a second voltage applied to the interior walls of the second set of remaining channels, thereby creating an electrical potential across the ceramic material separating any adjacent channels of the two sets. The electrical potential drives oxygen ions through the channel walls releasing concentrated oxygen into the second set of channels for collection therefrom.

Abstract: An adjustable pitch aircraft propeller has peripherally spaced composite blades each including an elongated core of expanded rigid foam material extending from a metal base member having a reduced neck portion and an outwardly projecting flange portion. A casing or skin of plastic resin impregnated fabric material surrounds the core of each blade and extends inwardly along the neck portion and also has a flange portion overlying the flange portion of the base member. The skin material overlying the neck portion of the base member is retained by a filament winding impregnated with plastic resin, and the blade is coupled to the propeller hub by an annular lip portion which projects inwardly and overlies the flange portion of the skin material. The foam core of each propeller blade has longitudinally extending slots, and strips of resin impregnated fabric material extend through the slots to form corresponding webs which connect the skin material forming oposite side of the propeller blade.

Abstract: An adjustable pitch aircraft propeller has peripherally spaced composite blades each including an elongated core of expanded rigid foam material extending from a metal base member having a reduced neck portion and an outwardly projecting flange portion. A casing or skin of plastic resin impregnated fabric material surrounds the core of each blade and extends inwardly along the neck portion and also has a flange portion overlying the flange portion of the base member. The skin material overlying the neck portion of the base member is retained by a filament winding impregnated with plastic resin, and the blade is coupled to the propeller hub by an annular lip portion which projects inwardly and overlies the flange portion of the skin material. The foam core of each propeller blade has longitudinally extending slots, and strips of resin impregnated fabric material extend through the slots to form corresponding webs which connect the skin material forming opposite side of the propeller blade.

Abstract: An adjustable pitch aircraft propeller has peripherally spaced composite blades each including an elongated core of expanded rigid foam material extending from a metal base member having a reduced neck portion and an outwardly projecting flange portion. A casing or skin of plastic resin impregnated fabric material surrounds the core of each blade and extends inwardly along the neck portion and also has a flange portion overlying the flange portion of the base member. The skin material overlying the neck portion of the base member is retained by a filament winding impregnated with plastic resin, and the blade is coupled to the propeller hub by an annular lip portion which projects inwardly and overlies the flange portion of the skin material. The foam core of each propeller blade has longitudinally extending slots, and strips of resin impregnated fabric material extend through the slots to form corresponding webs which connect the skin material forming opposite side of the propeller blade.

Abstract: A power plant for the generation of electricity from the flow of water currents uses turbine wheels within nozzles submerged in the water current, anchored to the bottom of the water course, as for example, the ocean, and self-buoyed to a level well below the water surface. Pairs of counter-rotating turbines are supported by their rims, which bear against friction drive wheels, which in turn drive electrical generators contained in water-tight machine rooms within the wall of the nozzle. A structural design is disclosed, providing for the building of modules of the nozzle ashore, which modules may then be barged to the deep-water site for assembly into the whole power plant.

Abstract: Power is mechanically transmitted from a tethered airship carrying wind turbines to electrical generators on the ground at the anchor point of the tether, by the use of endless power-transmission cables bridging between drive sheaves at the turbine wheels and driven sheaves at the generators. Tether adjustments, cable tensioning, and wind direction changes are provided for the ground apparatus. A tubular aircraft with recess in the tube wall, carrying bearings on which the rims of the turbine wheels ride, is also claimed.

Abstract: A turbine wheel on a horizontal axis is coaxially mounted within a primary nozzle, for support in a fluid current below a platform carrying electrical power generation equipment. The turbine wheel and primary nozzle are submerged and oriented to enable flow of a portion of fluid current through the nozzle and past the turbine wheel.The turbine wheel comprises a shroud-ring rim, a set of blades extending inwardly toward the axis, the blades being mounted at their outer ends on the inside of the rim, and at their inner ends on the outside of an axial hub. Each blade has its longitudinal tensile elements shaped in the form of part of a relaxed catenary, extending from rim to hub, with sufficient bow in the direction of force of fluid current on the blade to provide a practical wheel of reasonable cost. Struts and strut vanes supporting hub elements within the nozzle may also be of relaxed catenary configuration.

Abstract: A fluid-current energy-conversion plant, especially useful for electricity generation, utilizing an axial flow turbine as the energy conversion element, has self-inflated flexible collector elements for capturing a portion of the fluid current, increasing its velocity, guiding at least some of each portion into the turbine's mouth, then returning the captured flow into the stream.

Abstract: A turbine wheel on a horizontal shaft is coaxially mounted within a primary nozzle, for support in a river current below a platform carrying electrical power generation equipment. The turbine shaft and primary nozzle are submerged and oriented to enable flow of a portion of river current through the nozzle and past the turbine wheel.The external surface of the nozzle is shaped and has structure to accelerate and/or direct the flow of the adjacent surrounding maintstream river current in a manner to generate a sheath which aids the efflux of that portion of the river current which has passed through the turbine. Part of the said structure is a secondary nozzle surrounding the primary nozzle; the secondary nozzle is arranged to accentuate the control of the surrounding mainstream river current. Bearing means, support means, power take-off means, speed control means and blade shapes are disclosed.