Abstract: A method of controlling a level of printing ink in an ink fountain, including, by the use of an ink metering device, topping off printing ink along an ink fountain roller that dips into the printing ink; by a level sensor, determining signals relating to the actual level along the ink fountain roller, feeding the signals relating to the actual level to a control device; in the control device, comparing the signals fed thereto with signals relating to a desired level; forming actuating signals from the derived comparative signals, for an actuating element in the ink metering device, so that printing ink is topped off along the ink fountain roller in accordance with ink acceptance from the ink fountain; from a container with a limited supply of printing ink, dispensing the printing ink for topping off and, if necessary or desirable, renewing the supply of ink in accordance with ink demand, which further includes, for each measurement location of the level sensor, determining the change in the actual level per u

Abstract: A method for metering printing ink into an ink duct of a printing press, in which a metering device mounted on a carriage is reciprocatingly displaceable in a longitudinal direction of an ink duct having ink zones arranged next to one another in rows, the metering device including at least one sensor for monitoring a fill level in the ink duct, and a device for filling the ink in the ink duct, includes combining a plurality of the ink zones into a metering region, remetering printing ink to the metering region if a minimal fill level is determined by the sensor, and supressing a fill level measurement and remetering for at least one further crossover of the remetered metering region; and a device for performing the method.

Abstract: Method and apparatus for the determination of the color value gradients of a picture element of a printed image when there are changes in the layer thicknesses of the inks used in the printing, the picture element (4) is photo-electrically scanned in the visible range of the spectrum and also in the near infrared range. From the scanning signals thereby obtained, color coordinates or an approximated subjectively equidistant color system and at least one infrared value is formed. The color value gradients are then calculated from these color coordinates and the at least one infrared value.

Abstract: A method for multicolor printing, wherein stored information from the surface of a printing material obtained from an earlier pass of the printing material is applied to subsequent passes of the printing material through the printing machine, and wherein the image signals obtained by means of an image pickup device from at least one surface of the printed material are stored in a steering-or control device, and wherein the stored image signals are applied to subsequent passes of the printed material through the printing machine. The invention can be applied to other devices for producing printed images.

Abstract: A re-breather that includes an inhalant counterlung (18) and an exhalant counterlung (20), with a mouthpiece (30) disposed therebetween. Gas flows from the counterlung (18) to the mouthpiece (30) for use by the diver, with exhalant from the diver directed to the counterlung (20). Gas forced out of the counterlung (20) is input to a canister/scrubber (10) for processing through a scrubbing material in an interior canister (14). The CO.sub.2 -depleted gas is passed back to the counterlung (18). The counterlung (18) has disposed therein a PPO.sub.2 sensor (68) which is directed toward a control system (66) for controlling a valve (46) to adjust the rate of flow of oxygen from a bottle (40) into the CO.sub.2 -depleted gas exiting the canister/scrubber 10 prior to input to the counterlung (18). The rate is varied to maintain the PPO.sub.2 level at a substantially constant level.

Abstract: Apparatus for use in a gravure press or other reproduction apparatus, comprising a roller apparatus which is at least partly electrically conductive and at least one electrical transfer device adjacent the surface of the roller and connected to a power source, in use, to enable a charge to be applied to the surface of the roller by each such transfer device, and means for moving the transfer device relative to the surface of the roller, in use, whereby to mitigate the adverse image-patterning effects on gravure printing, or other reproduction, of any spatial discontinuities in the level of charge transfer from the spaced transfer devices onto the roller.

Abstract: A device for applying a liquid to a print carrier sheet in a sheet-fed rotary printing machine. The device has an applicator cylinder, an impression cylinder assigned to the latter and at least one gripper. The applicator cylinder carries a cylinder sleeve which applies the liquid to the print carrier and which has at least one recess, into which the gripper penetrates when the applicator cylinder and the impression cylinder roll one on the other.

Abstract: The invention relates to a method and a device for feeding printing ink in an inking unit of a printing press having an ink fountain to which, for the purpose of metered filling, there is assigned a cartridge in a holder, the cartridge having a displaceable cartridge piston, which is acted upon pneumatically for the purpose of pressure discharge, and having at the other end a closable outlet opening. The device includes a holder for the cartridge, the holder having a controllable pneumatic connection, and a valve that is closed when the cartridge is being acted upon by pressure. Also provided are a spacing or distance sensor for determining the position of the cartridge piston in the upper part of the holder, and a pneumatic actuator for opening the cartridge valve, pressure being applied separately to the cartridge and to the actuator.

Abstract: This invention provides cellulose ester fibers having an intermediate degree of substitution per anhydroglucose unit (DS/AGU) along with pigments which act as photooxidation catalysts. The fibers are useful as filter materials for tobacco products. The filter materials thus provided are easily dispersible and biodegradable and do not persist in the environment.

Abstract: A correction curve (FIG. 19) is prepared by plotting .sup.12 CO.sub.2 concentrations and .sup.13 CO.sub.2 /.sup.12 CO.sub.2 concentration ratios which are determined on the basis of a calibration curve and .sup.13 CO.sub.2 and .sup.12 CO.sub.2 absorbances of gaseous samples having the same .sup.13 CO.sub.2 /.sup.12 CO.sub.2 concentration ratio but known different .sup.12 CO.sub.2 concentrations. A gaseous test sample containing .sup.13 CO.sub.2 and .sup.12 CO.sub.2 as component gases is introduced into a cell, and spectrometrically measured. A .sup.12 CO.sub.2 concentration of the gaseous test sample is determined by way of the spectrometric measurement. A concentration ratio correction value is obtained on the basis of the correction curve and the .sup.12 CO.sub.2 concentration of the gaseous test sample thus determined. A measured .sup.13 CO.sub.2 /.sup.12 CO.sub.2 concentration ratio is divided by the concentration ratio correction value thus obtained for correction of the .sup.13 CO.sub.2 /.sup.12 CO.sub.

Abstract: Provided herein is a novel breath test for assessing hepatic function. The test involves administration of a labeled methionine or methionine metabolite to a subject and measurement of the expired label.

Abstract: A nasal dilator comprising a backing substrate having a first face and a second face. On the first face, there is provided a fibrous pressure-sensitive adhesive layer that comprises an entangled web of pressure-sensitive adhesive fibers. The fibrous adhesive layer has a moisture vapor transmission rate (MVTR) of at least 1000 g/m.sup.2 /day, and an adhesion to skin of at least 20 g/2.5 cm. On the second face of the backing, there is provided a resilient spring which extends along the length of the backing and is attached to at least two end regions of the backing. The fibrous adhesive layer provides for a nasal dilator that can be repeatedly attached to a wearer's nose with minimal levels of skin damage or trauma upon removal and increased levels of comfort while being used.

Abstract: An appliance is provided for installation within the mouth of an individual to prevent obstruction of the natural airway of the individual and to enhance natural ventilation during sleep. The appliance is hollow and constructed of material which is custom-molded to the user. An external negative air supply is provided which connects to a tube extending from the appliance and draws air from the hollow appliance creating a partial vacuum in the user's retroglossal area urging the user's tongue and soft palate away from the user's posterior pharyngeal wall and thereby opening an airway to the user's nasal cavity. A sensor provides control information to the negative air supply by sensing relative pressure in the user's oral cavity. The natural breathing cycle is thus facilitated but not controlled by the appliance.

Abstract: A mask is provided for administering medication, particularly asthmatic medication, to equine animals, particularly horses. The mask has a body that fits over the nostrils of the horse. An aerosolization chamber is secured to the body and opens into the interior thereof, and is supplied with misted medications such as from a metered dose inhaler, for inhalation by the animal. The mask and body is also provided with one or more exhalation ports, and a strap or band or the like for securing the body to the animals face overlying the nostrils.

Abstract: An appliance is provided for installation within the mouth of an individual to prevent obstruction of the natural airway of the individual and to enhance natural ventilation during sleep. The appliance is hollow and is custom-molded to the oral cavity for biasing tissues surrounding the user's natural airway to keep the airway open. An external positive air supply is also provided which connects to a tube extending from the appliance and forces air through the hollow appliance to a rear opening of the appliance in the user's retroglossal area. A sensor provides control information to the positive air supply by sensing relative pressure in the user's oral cavity. The natural breathing cycle is thus enhanced but not controlled by the appliance.

Abstract: The precipitation system comprises a collection tube (1) which can be fitted onto the powder inhaler with a mouthpiece (3) and a centrifugal precipitator (2,6) arranged in the collection tube (1). This centrifugal precipitator has at least one spin-producing surface (2) which produces a spin flow in the collection tube (1), as a result of which the heavy coarse powder particles are precipitated on the inner wall of the collection tube (1) while the lighter fine powder particles pass into the mouthpiece (3) due to a flow which is essentially restricted to the area surrounding the tube axis.

Abstract: A tracheotomy tube water blocking system including a strap adapted for securement around a neck of a wearer. The strap has an aperture through a front portion thereof. The aperture has a cylindrical collar secured therein. The cylindrical collar has an open inner end and an open outer end. The open inner end is dimensioned for coupling with an existing tracheotomy tube of the wearer. An air flow tube is provided having a generally inverted L-shaped configuration. The air flow tube has an upper horizontal portion with an open inner end coupling with the open outer end of the cylindrical collar. The air flow tube includes a lower vertical portion extending downwardly from the upper horizontal portion. The lower vertical portion having an open lower end.

Abstract: A dustproof mask comprises a filter unit disposed inside a mask cover. The filter unit is provided with a baggy filter having an inhalation hole in a position corresponding to a mouth of a user. A boundary plate disposed adjacent the filter unit has vent holes opposing the inhalation hole. The user can only take in clean open air through the filter when the user inhales open air through the mouth and the user can only exhale inner air through the nostrils.

Abstract: A laryngeal mask of the type used to facilitate lung ventilation and the insertion of endo-tracheal tubes or related medical instruments through a patient's laryngeal opening as used during general anesthesia, intensive care, or critical patient care. The mask includes an inflatable positioning shield formed to fit within a patient's oropharynx and seal around the circumference of the laryngeal opening, the shield having an inflatable annular toroid peripheral portion, a contoured rear portion, and a recessed front. The mask also includes a flexible respiratory tube having an proximal end lumen, a gently curved tubular body of sufficient size to permit passage of endo-tracheal tubes, and related medical instruments, and a distal end passing through and secured to the proximal edge of the annular toroid peripheral portion.

Abstract: A flow regulating system including a valve and a method for maintaining a constant gas flow rate at varying gas pressure by means of differential gas pressure applied to opposed sides of a valve diaphragm.