Abstract: The present invention relates to a ring roller mill which, among other things, can be used in connection with the manufacture of cement for grinding of mineral clinker materials, slags, and similar materials. The mill has a grinding ring 1 and a roller 2. Between the roller 2 and the grinding ring 1, the partially crushed material forms a grinding bed 4 and on each side of the grinding ring 1 dam rings 5 are fitted. On the outer side of the dam rings 5 are fitted collecting jackets 6, to which scoop plates 7 are fixed. The jacket collects the material which flows over the dam ring and by means of the scoop plates the material is lifted round with the collecting jacket. Since the speed of the jacket is lower than the critical speed, the material will drop off from the uppermost part of the jacket, being dispersed towards the bottom of the latter, and is subsequently returned to the grinding path.

Abstract: A combustion device in a lighter, such as a gas lighter, comprises a base portion, which is associated with a nozzle for jetting a fuel gas and is provided with a primary air hole for introducing primary air into the fuel gas having been jetted from the nozzle, and a combustion cylinder, in which the fuel gas containing the primary air mixed in is burned. The combustion cylinder has a multiple pipe structure comprising a combustion inner pipe, in which the fuel gas containing the primary air mixed in flows, and a combustion outer pipe, which is located around the outer periphery of the combustion inner pipe and at a predetermined spacing from the combustion inner pipe. The space, which is defined between the combustion inner pipe and the combustion outer pipe, is formed as a secondary air flow path, through which secondary air is supplied to a combustion flame.

Abstract: In a video frame grabber for digitizing analog video signals which have a pure analog video signal component and a synchronisation signal component, the synchronisation signals are digitized along with the pure analog video signals. Video gain and offset, sync gain, and sync threshold can be adjusted electronically. A variable time delay can be imposed on the sampling clock signals and on horizontal reference signals. Optimal values can be determined for the various parameters.

Abstract: A printhead structure (106) for use in a DEP (Direct Electrostatic Printing) device is provided, made from an insulating material comprising control electrodes in combination with printing apertures, characterized in that:(i) the printhead structure comprises individual control electrodes (106a), each of the individual control electrodes being combined with at least one aperture (107), on one side of the printhead structure,(ii) each of the individual control electrodes (106a) is located on the same side of the insulating material and(iii) the apertures are rectangles with an aspect ratio (AR), defined as the ratio of the width of the apertures in their long axis (WL) over the width of the apertures in a direction perpendicular to this long axis (WD), larger than 1. In a preferred embodiment each single control electrode controls two printing apertures with AR>1 and these two apertures are separated by a portion of the control electrode controlling them.

Abstract: A spinning device for the production of man-made fibers, in particular of cellulose regenerated fibers, including at least one spinning pump, at least one feed pipe line, at least one spinneret and a bath-like container for the precipitation bath whereby the feed pipe lines can be swivelled around at least one joint at any one time which is characterized in that the joint is movable in substantially horizontal and vertical direction. In one embodiment of the device the joint can be swivelled around one pivot respectively. With the device according to this invention, it is possible to simply swivel the spinnerets out of a deeper container which is required to enable a longer immersion path of the fibers.

Abstract: The invention is directed to antimicrobial peptides which correspond in sequence to selective amino acid sequences in viral transmembrane proteins. In particular, the proteins are derived from lentiviruses, primarily HIV and SIV. The peptides comprise arginine-rich sequences, which, when modeled for secondary structure, display a high amphipathicity and hydrophobic moment. They are highly inhibitory to microorganisms, while being significantly less active in regard to mammalian cells. As a result, the peptides of the invention may be defined as selective antimicrobial agents. The invention is also directed to antimicrobial peptides which are structural and functional analogs and homologs of the peptides and which exhibit selective inhibitory activity towards microorganisms. The invention is also directed to pharmaceutical compositions comprising the antimicrobial peptides of the invention and to methods for their use in inhibiting microbial growth and treatment of microbial infections.

Abstract: The generation of personalised documents, or documents including variable data, may require one or more varying overlay images to be printed on top of a background image. In order to avoid the generation of the background image for each document separately, a method is provided to store the background image permanently and to merge it with the overlay images just before printing. A transparency notion may be introduced to avoid masking of the background image by horizontally oriented rectangular overlays. The overlay image and the background image may be generated by a process of multilevel halftoning, suitable for printing by an electrophotographic printing device, using colored toner.

Abstract: Improved control of repeated program response to a user input is provided. One user input, such as the pressing and releasing of a key, causes a corresponding program response. Pressing of the key for longer than a predetermined interval causes a repetition of the response at a particular rate. Pressing of a second key while the repetition occurs causes the repetition to occur at a different rate. The improved control is possible independently of software and independently of motherboard hardware.

Abstract: In a communications system, a host computer in a data center communicates with a multiplicity of electronic postage meters via telephone dial-up lines to conduct telemeter setting (TMS) transactions. Through the communications, the host computer may collect statistical data from each meter, and may impose a cumulative postage amount limit, a time limit and/or a piece limit on the meter. To ensure security and data integrity, the communicated data between the meters and the host computer is selectively encrypted and/or authenticated.

Abstract: A method for determining the presence of microorganisms in a liquid sample. The liquid sample is first filtered through a filter having a pore size which is small enough to prevent passage of microorganisms through the filter but large enough to permit passage of any free reducing agents present in the sample whereby microorganisms present in the sample are retained on the filter. A chromogenic reagent having an oxidation potential such that the reagent can be reduced by microbial dehydrogenase and selected such that reduction of the chromogenic reagent yields a visibly colored product is then passed through the filter, and the filter is monitored for the formation of a visibly colored product indicative of the presence of microorganisms in the sample.

Abstract: A grate element for a grate surface, e.g. in clinker cooler, comprises a top plate which is shaped in the form of a box having a surface which is plane at one end, whereas at the other end it consists of in cross section downwardly curved slats which, between them, form slots. The grate element further comprises a corrugated bottom plate which is provided with longitudinal rows of slots and projections rising into the slots of the top plate, and gas channels which are defined by the underside of the slats of the top plate and the upper side of the bottom plate, and open at the slots in the two plates. Accordingly, the top plate of the grate element is effectively cooled, the pressure loss through the grate element is appropriately large, the grate element is protected against falling-through of material and maintenance work in connection with the replacement of grate elements is facilitated.

Abstract: In the embodiments disclosed in the specification, a locking arrangement for a head restraint which can be locked to a frame of a vehicle seat includes two parallel retaining bars received in corresponding tubular guides. A force-transmission element arranged within a hollow retaining bar transmits force from a knob in the head restraint to actuate a blocking member which is engageable with a latch array in the corresponding tubular guide.

Abstract: A method and plant for heat treatment of lime sludge (CaCO.sub.3) formed by the causticizing process during the manufacture of paper pulp. The lime sludge is dried and pulverized in a first process stage and preheated in a second process stage by means of hot exhaust gas coming from a kiln. In order to ensure that the temperature in the second process stage does not exceed a predetermined temperature lying within the range from 400.degree.-600.degree. C., the relationship between the amount of energy available in the exhaust gas for preheating in the second process stage and the amount of accumulated energy in the material which is to be preheated is regulated.

Abstract: A toner powder bottle having a base, a top, and intermediate side walls. A powder discharge opening is formed in the base. The bottle includes a bayonet connection for cooperating with a corresponding bayonet connection of a bottle receiving member to which the toner bottle is connected in use. Finger recesses are formed in the side walls adjacent the top, the finger recesses including lateral and axial function edges to facilitate axial and rotational manipulation of the bottle to enable connection of the bottle to the bottle receiving member.

Abstract: A recording material comprising on the same side of a support, called the heat-sensitive side, (1) one or more layers comprising an imaging composition essentially consisting of (i) a substantially light-insensitive organic silver salt being in thermal working relationship with (ii) a reducing agent, and (2) at said same side covering said imaging composition a protective later, characterized in that said protective layer mainly comprises an organic thermosetting or moisture-hardened polymer or an organic thermosetting or moisture-hardened polymer composition.

Abstract: Cardiac ventricular assist apparatus adapted to be placed by insertion through an incision in the wall of the upper abdomen below the rib cage and an incision in the inferior aspect of the pericardium proximate the heart apex comprises a distensible flexible bladder adapted to be passed through the incision in the pericardium to a position between the pericardial sac and the epicardium. The bladder is of a size such and shape such as to be engageable with a substantial portion of the outer surface of the left ventricle of a heart and is attached to a tube through which a gas can be introduced into it to compress the left ventricle and withdrawn from it to allow the ventricle to fill. A non-dietensible tube joined to the distal edge of the bladder is connected to a source of a fluid by which it can be inflated after insertion of the bladder to deploy the distal edge of the bladder from a collapsed condition in which it is emplaced within the pericardium to an extended condition partly encircling the heart.