Abstract: An improved thermal shock resistant and generally thermal resistant ceramic composition is disclosed. The ceramic composition is compounded of aluminum oxide as a primary constituent with additives in a preferred form comprising zirconium oxide plus manganese oxide or titanium oxide, or both, interacted by exposure to high temperature. The additives increase the thermal shock resistance of the fired ceramic composition, with retention of elevated temperature strength properties. The ceramic compositions are prepared as high density solid shapes or as porous structures. The solid shapes formed into machine components show improved resistance to rapid thermal excursions, differential thermal gradients and elevated temperatures. Open cell ceramic foams of the ceramic composition are useful for hot filters, such as for filtering molten metal as well as in reaction supporting applications, where such ceramic foam structures are subject to rapid temperature and pressure transients.

Abstract: A stainless steel wheel trim ring is constructed of an outer ring and a grip annulus. The outer ring is formed of a sheet metal band which is constructed from a rectangular blank having a pair of wedge shaped strain relief notches in a longitudinal edge adjacent to each end. The blank is welded at the joined ends to form the band. During manufacture, the band is expanded in the order of 25% at the longitudinal edge. A crimped peripheral bead along the longitudinal edge secures the grip annulus to the outer ring.

Abstract: A method for accurately displaying positional information of a map. A street or terrain map is produced and then digitized. The actual location of various antenna monuments is determined and a coordinate grid map is produced. A table of positional data is created using information derived from calculating the position of each of the antenna monuments utilizing a navigational tracking system, such as the LORAN-C system. Positional information received from various vehicles and the antenna monuments is used to calculate correctional factors used to distort and skew the grid lines constructed from said table of positional data in such a manner that the exact position of a vehicle can be displayed on the street or terrain map.

Abstract: A liquid-crystal composition to be used in a multiplex-driving system in a twisted nematic (TN) type liquid-crystal display devices is extremely superior in its display characteristics, and is able to meet sufficiently the demands to increase the information content of various liquid-crystal display devices of high-level multiplexing operation. The liquid-crystal composition is more considerable in its usefulness than the validity thereof in half-tone display especially when it is used in a liquid-crystal television.The liquid crystal composition having a positive dielectric anisotropy in the nematic phase, comprises each 3 wt % or more of 2-(4-alkoxyphenyl)-5-alkylpyrimidine compound and of a cyanobiphenyl compound.

Abstract: An improved thermal shock resistant and generally thermal resistant ceramic composition is disclosed. The ceramic composition is compounded of aluminum oxide as a primary constituent with additives in a preferred form comprising zirconium oxide plus manganese oxide or titanium oxide, or both, interacted by exposure to high temperature. The additives increase the thermal shock resistance of the fired ceramic composition, with retention of elevated temperature strength properties. The ceramic compositions are prepared as high density solid shapes or as porous structures. The solid shapes formed into machine components show improved resistance to rapid thermal excursions, differential thermal gradients and elevated temperatures. Open cell ceramic foams of the ceramic composition are useful for hot filters, such as for filtering molten metal as well as in reaction supporting applications, where such ceramic foam structures are subject to rapid temperature and pressure transients.

Abstract: Method of adjusting the lip opening of an extrusion die for stratiform material, with the characteristic that it consists in the combination of, on the one side, the control of the heating of bar shaped elements (9) which act upon at least one of the lips (6-7) of the lip opening (5), in function of the thickness of the formed material, and on the other hand, the common cooling of several bar shaped elements (9) by forcing a cooling medium along these elements (9).

Abstract: The invention relates to an apparatus for contacting two immiscible liquids having at least one electrode for the application of an electric field.The electrode is coated with at least two layers of different insulating materials, the first layer which is in contact with the electrode being formed from a liquid insulating material, e.g. benzylneocaprate or transformer oil, while the outer layer is formed from a solid insulating material, e.g. polytetrafluoroethylene.These electrodes are preferably in the form of bars arranged parallel to the fluid flow direction and they are provided with deflectors to ensure that no dispersed phase flow in the form of a film takes place along the bars.

Abstract: A device for bipolar high-frequency coagulation of biological tissue between two contact faces of a coagulating instrument. The two contact faces are connected to an output of a high-frequency generator. A temperature sensor is arranged near each of the two contact faces. A circuit for evaluating the measured temperatures and/or the temperature differential controls the coagulation temperature and the shutoff of the high-frequency generator as a preselected temperature or temperature differential is exceeded. Moreover, an indicating device is provided for acoustically and/or optically indicating the temperatures on the contact faces as well as the temperature differential between the contact faces.

Abstract: Double glass set of the type formed by an existing single glass set and a supplementary glass set with there between a spacer the sides of which are provided with an adhesive material that forms an airtight assembly between the spacer and glass sets, characterized in that the spacer is formed by a metallic profile (4-5-6-7), preferably in aluminium, which shows a rectangular section and the outside wall of which is provided with an L-shaped rib (16), the free flange of which is oriented towards the supplementary glass set (11), while the inside wall is prolonged past the side walls in order to form projections (21-22).

Abstract: Apparatus for determining the relative humidity of an atmosphere by measuring the dew point of the atmosphere. The dew point is measured by lowering the temperature of a condensing or sensing surface associated with a heat flow sensor. When condensation begins to occur this is detected by the heat flow sensor as a change in the rate of heat flow through the condensing surface. In one embodiment a pair of heat flow sensors are employed, one maintained at a slightly lower temperature than the other. The sensors are connected in series opposition so that output signals due to background or convective heat transfer are cancelled, any change in the combined output signal of the two sensors then indicating heat flow resulting from condensation. The temperature of the cooler face will be the dew point temperature. Two arrangements of sensors are disclosed.

Abstract: A continuous operation press for the manufacture and treatment of a board web of prefabricated or raw material, wherein the board web is passed into an inlet region between the upper and lower stringers of upper and lower endless belts traveling at a predetermined velocity in the transport direction, wherein there is provided a smooth coating formed with grooves serving as a sliding surface located at least in the main press and calibration regions. The board web glides above the smooth coating with the aid of fluid lubricant, the lubricant being supplied to the smooth coating through supply openings and discharged therefrom through discharge openings. Each groove in the smooth coating is formed with an opening therein either as a supply or discharge opening, each groove having a lubricant supply opening being positioned adjacent a groove having a lubricant discharge opening. Means are provided for controlling the pressure in at least some of said grooves for generation of a counter-pressure.

Abstract: A catalyst for after market installation into unvented consumer kerosene heaters is provided. In a preferred embodiment plural stainless steel screens each coated with a catalyst material consisting of alumina and a metal from the platinum group or compound thereof is suspended within the kerosene heater. The peripheries of the screens are joined to one another so as to promote fast start up and slow cool down of the catalyst. The catalyst is coated directly on the steel wires of the screen, without intervening ceramic support structure, so as to reduce thermal mass and cost.

Abstract: The housing of the filling device mounted on the tank wall defines a chamber wherein a spring-activated cut-off valve is mounted. This valve comprises a head cooperating with a valve seat at the end of a supply duct opening into the chamber and a piston-forming body separating the chamber into two volumes. The housing presents openings between the tank inner volume and the frontmost chamber volume, and a duct between the backmost chamber volume and the tank inner volume. A no-return valve, which only lets liquid to the tank inner volume, is mounted in this duct. At the end of this duct a valve controlled by the float in the tank is mounted.

Abstract: An on-board motor vehicle fuel treatment system for a vehicle having primary and secondary fuel tanks, includes a discrete reservoir for liquid fuel supplement, an electrically powerable constant volumetric displacement pump, a transfer line having a suction line connecting the reservoir to the pump and a delivery line connecting the pump to the tanks, a check valve in each of the suction and delivery lines, a selector valve in the delivery line for normally connecting the pump to the primary tank and alternatively connecting the pump to the secondary tank, a normally open pump switch, an adjustable timer for maintaining the pump switch closed for a duration of time has a timer control for basing time duration on the basis of untreated volumetric units of fuel, and a switch for starting the timer and adjustable time duration for each volumetric unit on the timer control; the timer controlled pump switch is wired in series with the pump and a normally open selector valve switch is wired in series with the pump

Abstract: A continuous operation press for manufacturing and/or coating, veneering, etc., a single-layer or a multiple-layer board web made of a mat which includes wood chips, wood fibers, etc. The press includes a carrying run of an upper belt which continuously circulates at a preset constant speed and a carrying run of a lower belt, with both belts preferably being made of steel. A friction reducing arrangement such as a slide or friction reducing coating extends over an entire width of a press area and is disposed on an upper and lower abutment, with the entering belts sliding over the friction reducing coating. A pressurized liquid lubricant is supplied to the friction reducing coating. The friction reducing coating extends over at least a main press area as well as a calibration area in which upper and lower slide coating extend parallel to one another.

Abstract: A continuous operation press for manufacturing and/or coating, veneering, etc., a single layer or multiple layer board web made of wood chips, wood fibers, etc. The press includes a carrying or supporting run of a lower continuously-circulating steel belt and a carrying or supporting run of an upper continuously-circulating steel belt. The pressing of the board web takes place between the upper and lower runs. An underside of the lower circulating belt rests on an abutment or support which is provided with a friction reducing arrangement, with the entire friction reducing arrangement being surrounded by a sealing arrangement.

Abstract: Hardware attaching means is disclosed in the form of a support assembly for attaching hardware to a panel structure. The assembly includes one or more doubler plates adhered to the exterior of the panel structure to distribute hanging and service forces thereto. Spacer means is provided in the assembly to prevent excessive compression and bearing stress of the panel structure when the assembly is held in supporting relationship therewith.

Abstract: Novel locking means for coupling shafts together is disclosed in which the shafts are threaded together thus axially and radially locating the first and second shafts, and are locked by means of a knurled portion encircling a first one of said shafts interacting with an internally knurled key having a peripheral shape corresponding to a removed portion of a second shaft whereby relative rotation of the shafts is provided. In a preferred embodiment, one of said shafts comprises a tubular shaft formed integrally with an impeller of a pump which may be formed of fiberglass so as to be corrosion resistant. A collar may be provided to simultaneously lock the key to the two shafts.

Abstract: A wheel cover locking assembly comprises a knob in which a plastic bolt is rotatably mounted, the bolt extending through a wheel cover and engaging a nut carried on a bracket affixed to a wheel by means of lug nuts, so that rotation of the bolt locks the wheel cover on the wheel. A cam piece located inside the knob and hidden by a snap-in decorative cover can be rotated by means of a simple key to clutch and de-clutch the knob to and from the bolt. The simplified and economical construction tends to be impervious to water and dirt.

Abstract: A curved section is provided for connecting in a conduit through which passes a fluid stream having solid material entrained therein. A plurality of wear strips are attached to the inside wall of the curved section. They are positioned for the solid material to impinge thereon as the fluid stream changes its direction of flow as it passes through the curved section. The wear strips are elongated members of wear resistant material positioned side-by-side along the inside wall against which the solid material impinges. The abutting sides of adjacent wear strips are beveled so that the outer edges of one adjacent strip extends over the inner edge of the other adjacent strip to provide a continuous surface of wear resistant material in the path of the entrained solid material.