Abstract: An improved gooseneck trailer hitch locking device for obstructing a gooseneck coupler to prevent undesired coupling by a towing vehicle, the locking device comprising lock bodies cooperating with and obstructing the front and rear facing portions of a gooseneck coupler, a lock pin securing the lock bodies to each other and having a lock device for preventing access to the lock pin and undesired removal of the lock bodies from the coupler. The lock bodies include apertures which can be aligned with each other and with a bore centrally disposed in a downward projection extending from one of the lock bodies. The lock pin is received by the bore and can be extended into the aligned apertures in the lock bodies when aligned to secure the lock bodies to each other.

Abstract: Classifying and processing post-consumer plastic scrap materials for subsequent utilization. Post-consumer plastic scrap of various kinds, such as colored HDPE, natural HDPE, green PET and clear PET are separating into constituent fractions, and each fraction is separately reduced to flakes. At least some of the fractions are separately washed to remove fragments of labels or other foreign matter previously in place on the plastic bottles or other containers making up those scrap constituents.

Abstract: Process of making and mounting an end rim of a cylindrical sieve (1) for paper pulp strainer and classifier characterized by the fact that the rim is of one piece, molded directly on the end of the cylinder with a hardenable or thermosetting plastic material.

Abstract: A fully hand portable security system includes a plurality of radio transmitter equipped detectors with batteries, configured to generate one or more radio signals indicating the sensing of a potentially hazardous environmental condition by the detector and a central controller including a weather resistant housing including a radio receiver, a processor and power supply circuitry, operator audible and visible alerting devices and connectors activating or deactivating various optional or other devices at the location and transmitting alarm or other trouble warning message to remote location. The controller is configured to be powered by either AC or DC power supply, including an external, hand portable battery providing a multiday power supply for operating the system for at least one week. Operation of the system is as simple as carrying the components to the area to be protected, hand install the detectors about the area, connecting the controller to the selected power supply and turning the controller on.

Abstract: In the press section of a paper making machine, there is a central roll, a first press roll beneath and a second press roll above the central roll defining respective first and second press nips. The first press nip or both nips may be extended nip presses. A water impervious press belt travels through the first press nip around the central roll and through the second press nip, meeting the central roll before the first nip and leaving the central roll after the second nip. A felt belt conducts the web to be dewatered into the first nip along with the press belt. The felt belt separates from the web after the first nip. Following the second press nip, the press belt carries the web to a place of removal where a dryer wire picks up the web. The distance from the second press nip to the place of removal is at least equal to the circumference of and is preferably greater than the circumference of the central roll.

Abstract: A pressure sorter for a suspension flow includes a cylindrical housing having at least one inlet opening and at least one outlet opening with a defined pressure drop therebetween. A rotationally symmetric screen basket defining an axis is disposed within the housing. The screen basket has a plurality of openings defining a total screen perforation passage area. The axis of the screen basket is positioned offset a distance of 6 to 12% of the diameter of the screen basket. The axis of the screen basket is disposed in a plane which extends through the housing axis and is perpendicular to the housing outlet opening. A rotor and suspension sorting space are disposed centrically within the screen basket. An accepts space is disposed radially outward of the screen basket between the screen basket and the housing.

Abstract: The invention relates to a method in a mobile radio system having both digital and analog radio channels. An object of the invention is that a connection established on a digital radio channel often shall be possible to maintain even when the time dispersion on available digital radio channels exceeds the designed maximum time dispersion of equalizers in receiving stations. According the invention equalizers in the receivers of the system may be designed for a smaller maximum time dispersion than the total time dispersion the whole system shall be capable to handle. Instead handoff is made to an other channel when the time dispersion of a used digital channel tends to become too big. When an other digital radio channel with low time dispersion is available handoff is preferably done to this channel. Alternatively or in the absence of such a digital radio channel handoff is performed to an analog radio channel.

Abstract: A method and apparatus for use in a cellular mobile radio telephone system for determining which of one of several mobile generated transmissions received in a mobile switching center, sent from the same mobile station via more than one base station, should be accepted. A determination is made based on the relative signal strengths of the signals received by the base stations and by the relative time of occurrence of the mobile generated transmissions.

Abstract: An improved method for preparing a catalyst which is superior for converting methane to ethane and ethylene is described. The method involves mixing a solution of a magnesium alkoxide in alcohol with a solution of a lithium compound in alcohol. Preferably, chlorine is introduced into the mixture. A solution of an aluminum alkoxide in an alcohol may also be added to the mixture. The magnesium alkoxide is hydrolyzed to produce a gel, and the gel is then calcined to produce the catalyst. Catalysts prepared by this method are superior for converting methane to ethane and ethylene, and have superior selectivities for ethylene and ethane over conventional lithium carbonate/magnesium oxide catalysts.

Abstract: An electronic circuit is described which will allow an acoustoptic deflector to be used in multi-frequency mode at high power levels with a minimum amount of intermodulation between each frequency. Reduction of interference between multiple separate signal frequencies is achieved by precise control of the individual phasing of each separate frequency relative to a common reference frequency. The relative phase of each frequency is also controlled so that a low maximum power is achieved for the combined signal that is presented to the acousto-optic deflector without decreasing the overall average power of the multiple signal frequencies. The present invention is useful in systems such as optical data storage on tape or disk, optical printing and imaging, and acousto-optic signal or information processing.

Abstract: As a new composition of matter, alkali metal or ammonium or tetraalkylammonium diazidoperfluorophthalocyanatoferrate. Method of oxidizing alkanes by contact with a catalyst comprising diazido derivative of a metal phthalocyanine, including halogenated phthalocyanines. Method of oxidizing alkanes by contact with a catalyst comprising a metal phthalocyanine or halide thereof, including halogenated phthalocyanines, and an alkali metal or ammonium or tetraalkylammonium azide.

Abstract: The invention relates to a method for increasing blood flow to the retina and choroid in subjects with decreased retinal or choroidal blood flow. The method involves the topical administration of metoclopramide and is useful for the treatment of low pressure glaucoma and ischemic retinal degeneration.

Abstract: A stationary optical antenna forming a part of a full duplex optical communication system, includes optical emitter and receptor devices having peak power axes, and a mounting arrangement for positioning the devices at an elevated location within a room with their axes directed downwardly at a given angle to a horizontal plane, based upon the height of the devices above the floor, thereby enabling remote portable transceivers to be able to communicate therewith within the same room. Baffles help prevent interference between the emitters and receptors, and a compensation circuit is employed to enable the optical communication to take place, even in bright light conditions.

Abstract: Compositions for producing foamed products which include filler and/or pigment additives and blowing agents which enhance the strength of weld lines which are produced when the compositions are molded. The products produced from the compositions have weld line that demonstrate superior strengths as compared to similar foamed products which do not utilized the particular blowing agents.

Abstract: A wire or felt forming section of a paper-making machine has breast rollers for guiding a respective one of two forming wires. The two rollers are disposed with a pulp gap formed between the two rollers and the wires are disposed just downstream of a pulp suspension ejecting nozzle of a headbox. Each roller is supported against the respective taut forming wire by a hydrostatic bearing. The hydrostatic bearing has two circumferentially separated resiliency chambers provided in a combined region of resiliency disposed over an arc of the circumference of the roller. A sealing strip after the region of resiliency prevents fluid from contacting the wire.

Abstract: The marking device has a housing supporting a marking head for movement longitudinally and laterally preselected amounts controlled by a pair of stepper motors. The marking head has a plurality of marking pins that are air actuated and controlled by appropriate solenoids. The marking device is arranged to move the head longitudinally in a raster pattern so that each of the pins is actuated to form a portion of a character upon longitudinal movement through a selected distance. The marking head is then moved to a parallel y axis and subsequently moved longitudinally in a reverse direction. During the movement in a reverse direction, all of the pins are actuated to form other portions of the characters in the array. With this arrangement, a plurality of characters are simultaneously formed by impressing dots on an object until the marking head moves forward and backward on different y axes to simultaneously form all of the characters in the array.

Abstract: The invention relates to a method for increasing blood flow to the retina and choroid in subjects with decreased retinal or choroidal blood flow. The method involves the topical administration of loxapine and is useful for the treatment of low pressure glaucoma and ischemic retinal degeneration.

Abstract: The present invention is an apparatus for examining a body part. The apparatus comprises a device for providing an anatomical image of the body part, such as an x-ray and a device for providing a physiological image of the body part in an adjacent relationship with said means for providing an anatomic image such that the body part remains in the same position during and between anatomic and physiological imaging. Preferably, the body part is infiltrated with a radiotracer and the device for providing a physiological image includes a device for detecting emissions of the radiotracers from the body part. In an alternative embodiment, the apparatus for examining a body part has a device for immobilizing the body part and a device for providing a physiological image of the body part. The providing device is in an adjacent relationship with the immobilizing means.

Abstract: A stabilized powdered endothermic blowing agent which is a mixture of a polycarboxylic acid and an inorganic carbonate, the polycarboxylic acid and inorganic carbonate each having been surface treated with a component which prevents water from being absorbed thereby The blowing agent is incorporated into a polymeric concentrate used for producing foamed products.

Abstract: A self-centering buffer pad assembly is constructed of conventional washable buffer pads releasably attached by hook-and-loop material to a support disk permanently covered with hook material; the replaceable buffer pads are lined with the less expensive loop material. The support disk has at its center a projecting tapered hub which acts to center the pad on the disk, and a threaded bushing for attachment of the assembly to a power tool.