Abstract: A non-impact printing method with selective emission of solid ink particles is disclosed. A rod of solid ink is spring-pressed in an insulating housing against an end wall with a nozzle therein. A pulsed high voltage applied between the ink rod and a counter-electrode (which can be behind a paper target) causes ink particles to be eroded from the rod and ejected through the nozzle onto the paper. The method includes incremental line-feed paper movement, movement of printing devices as just described along the printing line, and selective control of the high-voltage pulsing such as to form characters by a dot matrix technique.

Abstract: A method of measuring the beta-hydroxybutyrate concentration of a urine sample including, in one step, the oxidation of beta-hydroxybutyrate to acetone and acetoacetate and the removal of pre-existing acetone/acetoacetate.

Abstract: A fuel dispensing nozzle having an aspirator valve which closes an aspirator line when there is a high negative or positive pressure in the fuel tank being filled, the closing of the aspirator line decreasing pressure in a chamber so that a shaft is released whereby the nozzle automatically shuts off. The nozzle also has a poppet valve controlled with the fuel valve of the nozzle, which poppet valve seals a vapor return line through the nozzle when the fuel valve is shut off.

Abstract: A suspension system for vertically mounting RF transmission line on a tower has stabilizing guides at spaced intervals to prevent lateral movement of the line while permitting vertical movement to accommodate differential thermal expansion and contraction. The line is suspended by a series of vertically spaced adjustable spring loaded arms to support the line vertically without lateral loading on the stabilizing guides.

Abstract: Apparatus is described for the removal and recovery of pollutant oil and the like floating on the surface of a body of water, comprising: means capable of the physical withdrawal of pollutant oil and the like with or without additional water from the water surface to a recovery station on site; means for spraying hot water over such pollutant oil and the like at said recovery station; a receiving tank for the oil/water washings resulting; an oil/water separator/coalescer for separating oil containing a minor quantity of water only from the washings; means for receiving such separated oil; means for recirculating water from said separator/coalescer for heating and further spraying; and means for returning any excess purified water from said separator/coalescer to said body of water.

Abstract: A liquid jet gas pump providing suction to recover vapor through a line connected to dispensing nozzle, the pump having chambers for collecting liquid carried by returning vapor and a float therein so that the float, when the amount of liquid collected in the chambers becomes too great, blocks the suction path through the pump thereby shutting off the dispensing nozzle. The pump also has an internal connection from a diaphragm chamber to an internal area which is substantially at atmospheric pressure during pump operation thereby eliminating the need for an access vent from the diaphragm chamber to the atmosphere.

Abstract: A solid ink cartridge for a non-impact printer with emission of solid ink particles is disclosed. A rod of solid ink is spring-pressed in an insulating housing against an end wall with a nozzle therein. A pulsed high voltage applied between the ink rod and a counter-electrode (which can be behind a paper target) causes ink particles to be eroded from the rod and ejected through the nozzle onto the paper. The printer includes incremental line-feed paper movement, movement of printing devices as just described along the printing line, and selective control of the high-voltage pulsing such as to form characters by a dot matrix technique.

Abstract: A coin-operated arm wrestling device provides a table top, adjustable for height, having a "playing surface" to support the elbows of a pair of contestants, means at each end of the surface to register "falls," score signalling and keeping means and playing surface interrupting means to spoil the elbow supporting surface when a predetermined number of falls have been registered. The device is suitable for use in recreation centers and the like.

Abstract: A system for installing one or more side-by-side submerged pipelines from the shore while preventing abrasive contact between the pipe and any of the ground, the seabed or the equipment used. The line is assembled from joints on shore, clamped between timbers at spaced intervals, hauled down a track supported by the timbers to the water's edge where buoyant spherical wheels are detachably secured to the clamping timbers. The pipeline is pulled into the water, rolling on the wheels which maintain it in spaced relation to the seabed and which when the pipeline reaches its final destination, are released to float to the surface for retrieval. Additional lengths of pipe may be added periodically on the shore so that pipelines of any desired length can be installed. The wheel assemblies are released by pulling buoyed trip lines whose buoys floating on the surface mark the path of travel of the pipeline as it is pulled along the seabed.

Abstract: The printer comprises electrodes arrayed in circumferential rings and rows parallel to the axis of a cylinder. This axis corresponds to the vertical direction of characters printed on a sheet of paper. The print cylinder is moved in the direction of a line of print transversely to the direction of feed movement of the paper and rotates with respect to the paper in order to avoid sliding movement. A movable inked ribbon is disposed against the top face of the paper on which the printing is to be effected, and on the opposite side to the print cylinder. The inked ribbon is electrically conducting and connected to one terminal of the power supply which selectively energizes the electrodes. The ribbon is moved in the same direction as the print cylinder by means of drive rollers. The inked ribbon passes through an inking station for continuously renewing the layer of ink.

Abstract: In a copying machine having a movable carriage 5 for carrying the original, the correct velocity ratio between the carriage and the drive shaft 18 which advances the photosensitive sheet 21 (or photosensitive drum) is established by driving the carriage from a shaft 25 at overspeed through a friction clutch 38 and limiting the carriage velocity to the correct value by a coupling (rack 32, gears 40,43, one-way clutch 29) between the carriage 5 and the drive shaft 18. The correct velocity is thereby maintained irrespective of wear and tolerances in the drive to the carriage and the carriage guides.

Abstract: Separation of a suspension of two immiscible fluid components is accomplished in a cylindrical pressure vessel divided into a main chamber and, at one axial end, a secondary chamber. A series of sinusoidal plates in the main chamber provides a tortuous passage for fluid to the secondary chamber. The two components tend to separate during such passage, the less dense component collecting in the upper part of the main chamber and the denser component passing to the secondary chamber. The vessel is provided with an inlet to the main chamber, a first outlet from the main chamber for the less dense component and a second outlet for the denser component exiting from the secondary chamber.

Abstract: A device for pulling a submersible pump from a well casing comprises a pair of spaced, parallel legs adapted to straddle the rim of the casing and be clamped thereto by upper and lower clamps. A submersible pump in the well may be pulled by operating a winch mounted at the upper end of the device.

Abstract: A solar hot water heating system, utilizing preferably a gas-liquid, phase change medium in the collector, employs one heating and storage tank above the collector and a preheating and storage tank below the first tank and preferably also below the collector. A cold water source feeds the inlet of the preheating tank which has its outlet connected to the inlet of the heating tank. The hot water outlet of the heating tank not only supplies heated water where needed but has a connection for recirculating surplus hot water to the inlet of the preheating tank by means of a pump which is activated and deactivated by a switch sensitive to the temperature of the medium.

Abstract: A fusing rolls fixing unit having a toner antisticky liquid supply device wetting the surface of the fixing rolls to prevent adhesion of toner particles thereto. The antisticky liquid supply device is discontinuously operated for applying liquid to the fixing rolls only one time for each copy-run executed.

Abstract: An electrophotographic copying machine having duplexing mode of operation and first and second selectively enabled sheet supply stations. The first supply station has a feeding device which turns the copy sheet to be fed upside down before delivering it to the conveyor moving the copy-sheet toward transfer station. In the duplexing mode of operation sheets fed from the second station are one side imaged along the copy-sheet path and are collected in the first section. Then one side imaged copy sheets are fed from the first supply station and are imaged on the other side along the copy-sheet path. A storage tray with adjustable stops is provided in said first supply station to handle copy sheets of different formats.

Abstract: An aircraft ground guidance and parking system consisting of a lighting display unit adapted to be mounted at a parking station pointing directly down the on-course center line to be followed by the incoming taxying aircraft and at an elevation for viewing from the cockpit of the aircraft, the lighting display unit including an array of traffic lights, a scanning system for reading successive indicia on the side of the aircraft as it passes by a location at the parking station and thereby generating successive signals, and a control unit responsive to the signals to illuminate the traffic lights in successively different modes of operation to signal the pilot of the aircraft when to slow and to halt the aircraft, the lighting display unit further including an optical system for emitting narrow beams of light visible to the pilot of the aircraft through predetermined sectors at angles on both sides of the on-course center line and which selectively appear to extinguish or illuminate to indicate to the pilot hi

Abstract: A non-impact printing device with selective emission of solid ink particles is disclosed. A rod 19 of solid ink is pressed by a spring 20 in an insulating housing II against an end wall with a nozzle 13 therein. A pulsed high voltage applied between the ink rod and a counter-electrode 16 (which can be behind the paper 25) causes ink particles to be eroded from the rod and ejected through the nozzle on the paper. Printers are described which employ incremental line-feed paper movement, movement of printing devices as just described along the printing line, and selective control of the high-voltage pulsing such as to form characters by a dot matrix technique.

Abstract: A process for chemical enrichment of uranium with respect to a lighter one of its isotopes. The process consists in contacting uranium of valence state III and uranium of valence state IV, or a compound of uranium of valence state III and a different compound of uranium of valence state III. One of the phases which are contacted or the only phase is liquid. The system should be substantially free of elements which would cause uranium III to oxidize to valence IV.