Abstract: A clear brine fluid composition for use in servicing wells in the oil and gas industry comprising a solution of a zinc halide and a calcium halide in water having a density lying in the range of about 15 to about 22 ppg, a measured alkalinity lying in the range of about 0 up to about 1 normal and a measured zinc to calcium mole ratio lying in the range of about 1 to about 3.

Abstract: A vertical ballistic transistor is described. Base metallic contacts of reliable thickness are deposited on a carrier depletable layer and diffuse into the base. A depletion region forms in the depletable layer. The depletion region electrically isolates the base contact from the emitter. The thickness of the depletable layer prevents the generation of usual depletion regions in the base that tend to cut off base current.

Abstract: A gear coupled, counter-rotating vibratory assembly is described for producing a fine tuned accurate linear vibratory motion without any twisting force component. The assembly has two parallel shafts that extend through a gear casing with cantilevered ends extending outward from both sides of casing. Large intermeshing gears are mounted on the shafts to rotate the shafts in counter-rotating synchronized motion. One of the gears has metal teeth and the other gear has plastic teeth. Identical eccentric weights are mounted on the cantilevered shaft ends outside of the gear casing at the same angular positions to generate the linear vibratory motion. The eccentric weights on the drive shaft are offset inward of the weights on the driven shaft. The radius of each of the eccentric weights is greater than the radius of the gear but less than the diameter of the gears.

Abstract: Method and apparatus, to be utilized by a newspaper carrier on a "vehicle route," for mechanically folding and bagging newspapers and like articles. A continuous length of heat-sealable polymeric film, wider than the newspaper or other article, is arranged along a generally horizontal feed path to form a folding station. The newspaper or like article is fed to the folding station of apparatus in parallel overlying relation to the film. A vertically reciprocal, motorized folder bar extends transversely across and above the film at a point substantially centrally located in the folding station. The folder bar is movable between an upper position above the feed path and a lower position below the feed path where there is formed a pouch of film surrounding the folded newspaper.

Abstract: In the commercial production of licorice bites, each about 1 inch long, a group of extruded 54-inch licorice strips are lifted by a programmable controlled robot from the discharge end of a lower conveyor and deposited at the input end of an upper conveyor which carries the strips to a cutting station. The robot hand has a lower stainless steel blade for insertion under the group of licorice strips to wedge the sticky strips from a board on which they are being carried by the lower conveyor. The robot hand includes an upper bar. The bar is moved relative to the blade after insertion of the blade under the licorice strips, thereby clamping the strips between the bar and the blade. The arm of the robot then lifts the hand and clamped group of licorice strips and deposits the front ends of the strips at the input of the upper conveyor.

Abstract: A planar interconnect using selective deposition of a refractory metal such as tungsten into oxide channels is disclosed. A layer of silicon dioxide as thick as the desired tungsten interconnect is placed on the surface of a substrate such as an integrated circuit wafer. Thereafter, a layer of silicon nitride about 100 nm thick is formed on the silicon dioxide. Channels are formed in the silicon dioxide by patterning and etching the composite dielectric layers. After the photoresist is removed, silicon or tungsten atoms at 40 KeV are implanted in the silicon dioxide channels, the silicon nitride acting as a mask. Typically, a dosage as high as 1.times.10.sup.17 cm.sup.-2 is used. The silicon or tungsten implant allows seeding of the tungsten or other refractory metal. The silicon nitride mask is selectively removed by a hot phosphoric acid solution, and a metal film is then selectively deposited to fill the channels in the silicon dioxide layer, which then forms a level of interconnects.

Abstract: In two-short perfect binding of books, excellent results in terms of binding strengths, cold flow and cold crack properties, ink solvent resistance and thermal degradation susceptibility may be achieved using as a first adhesive a water based primer, e.g. a synthetic rubber latex emulsion, and as a second adhesive a hot-melt adhesive comprising a segmented monoalkene-vinyl acetate copolymer, e.g. a segmented ethylene-vinyl acetate copolymer optionally in admixture with at least one other ethylene-vinyl acetate copolymer.

Abstract: A transformer current sensor having primary turns carrying a primary current for a superconducting coil and secondary turns only partially arranged within the primary turns. The secondary turns include an active winding disposed within the primary turns and a dummy winding which is not disposed in the primary turns and so does not experience a magnetic field due to a flow of current in the primary turns. The active and dummy windings are wound in opposite directions or connected in series-bucking relationship, and are exposed to the same ambient magnetic field. Voltages which might otherwise develop in the active and dummy windings due to ambient magnetic fields thus cancel out. The resultant voltage is purely indicative of the rate of change of current flowing in the primary turns.

Abstract: This invention relates to a process for producing phenolformaldehyde foams, also known as phenolic foams, of improved properties. The inventive feature resides in using a controlled combination of the various components in the curing reaction mixture and in controlling the temperature within the mass of the curing mixture. The process is applicable to production of block or laminated foams. Phenolic foams find increasing use in building applications where their thermal insulation and fire resistant properties are of value.

Abstract: A masking apparatus for forming multiple exposure photographic images includes a plurality of at least first and second planar cards of corresponding size and shape which can be registered in a precise, preselected position with respect to each other upon a camera. A generally circular aperture is formed in the first of the cards and an aperture is formed in the second of the cards which includes a partially circular periphery and a partially concave periphery. Registering is provided for sequentially mounting each card upon a camera in a position that places the apertures in different positions with respect to the film so that multiple exposure photographic images made with the camera occupy different spacial positions.

Abstract: This invention relates to flame retardant phenol aldehyde foams which have a k value below 0.020 W/mk. The foams have as flame retardants a blend of a halosubstituted diphenyl oxide and an organic phosphorus compound. The feature of the invention is that unlike conventional flame retardants, the blend now used does not adversely affect the low k value i.e. the low thermal conductivity of the foam.

Abstract: In the commercial production of licorice bites, each about 1 inch long, a group of extruded 54-inch licorice strips are lifted by a programmable controlled robot from the discharge end of a lower conveyor and deposited at the input end of an upper conveyor which carries the strips to a cutting station. The robot hand has a lower stainless steel blade for insertion under the group of licorice strips to wedge the sticky strips from a board on which they are being carried by the lower conveyor. The robot hand includes an upper bar having a food-grade rubber undersurface. The bar is lowered relative to the blade after insertion of the blade under the licorice strips, thereby clamping the strips between the lowered bar and the blade. The arm of the robot then lifts the hand and clamped group of licorice strips and deposits the front ends of the strips at the input of the upper conveyor.

Abstract: A data processing system includes means for verifying the authority of data-entry devices to input data and the authenticity of such data. The system includes a central data-processing computer, a plurality of data-entry devices connected to the central computer for providing input data, a central security system, connected to the central computer for identifying the data-entry devices and verifying that such devices are authorized to input data, and a programmable external security device connected to at least one of said authorized data-entry devices. The external security device is programmed by the central security system to exchange user-identifier and user transaction-related data with this data-entry device and with the central security system.

Abstract: A low headroom culvert is provided wherein a series of shallow arch-shaped flat metallic sections are overlappingly secured together. Torsion and buckle resistant reinforcing cross ribbing elements are affixed to the exterior culvert sections at selected points along the culvert to form girder-like beams. The improved culvert structure provides reduced hydraulic flow resistance, can be easily installed and requires less metal for its manufacture in comparison to culverts made of corrugated sheet.

Abstract: A video filter is provided for use in an image processing system wherein correlated video data is received by the video filter in a cellular format. The filter includes structure for simultaneously filtering at least four cells of the correlated video data.

Abstract: Method for automated hydro-blast de-coking of delayed coke drums wherein programmed central control receives input of drill stem tension, drill bit elevation and drill stem rotation along with indications as to hydraulic hoist power and air pressure input to the drill stem rotary motor, and functions to provide control outputs to automatically control the pilot and main bed cutting procedures attendant an entire drum de-coking operation.

Abstract: In licorice manufacturing equipment, a cylindrical multibladed cutter assembly for cutting licorice strips into bite length has its blades radially positioned in a cylindrical roller and its cutting edges transverse to the direction of movement of a conveyor carrying extruded licorice strips. For the purpose of preventing the severed bites of licorice from becoming wedged between the adjacent cutting blades, ejector rods are provided, one between each pair of cutting blades. Camming means cam the ejector rods radially outwardly at the circumferential position at which cutting takes place, thereby to dislodge and eject the licorice bites from the cutter.