Abstract: A tool for dry mixing and coating of powder mixtures comprising includes a fixing shaft and an approximately disc-shaped element fixed thereto and of a diameter d, having an upper surface, a lower surface and a peripheral surface connecting the upper and lower surfaces. The disc-shaped element has a plurality of grooves extending parallel to the shaft axis. Each groove has two groove walls extending from the peripheral surface to a groove bottom. A tooth is formed between two grooves. In order to provide a tool which is suitable for particularly low contamination dry mixing, dry dispersing and coating of powder mixtures, the disc-shaped element has a base portion and at least one wear element fixed to the base portion, wherein at least one portion of each groove wall, that adjoins the peripheral surface, is formed by the wear element.

Abstract: In known methods for producing a glass component, a void-containing intermediate product containing doped or non-doped SiO2 is inserted into a sheath tube composed of glass, which has a longitudinal axis and an inner bore, and is thermally treated therein. In order to subject the intermediate product to a thermal and/or reactive treatment that is reproducible and uniform in its effect from this starting point, it is proposed in one embodiment that into the sheath tube's inner bore a first gas-permeable gas diffuser is inserted which is displaceable along the sheath tube's longitudinal axis and is pressed against the intermediate product during the thermal treatment.

Abstract: A conversion device for converting linear movement in a stationary system into rotary movement about a pivot axis in a system which rotates about an axis of rotation that is not identical or parallel to the pivot axis. The conversion device has a lift element and a lift device with which the lift element can be moved with translatory movement relative to the stationary system. The lift element has first and second lift element portions connected together by a rotary bearing so that the first lift element portion can be rotated relative to the second lift element portion about the axis of the rotary bearing. The first lift element portion is connected to the lift device and the second lift element portion is connected to the conversion device. The conversion device is connected to a shaft positioned on the pivot axis so that a linear movement of the second lift element portion is converted into a rotary movement of the shaft about the pivot axis.

Abstract: A mixing device includes a container for receiving mixing material, with an emptying opening being arranged in the bottom thereof, and a closure cover for closing the emptying opening. The mixing device includes an emptying opening that can be easily and space-savingly opened and closed. The closure cover includes two closure cover portions which can be reciprocated relative to each other between a closed position in which the two closure cover portions are in contact with each other and together form the closure cover and an opened position in which the two closure cover portions are spaced from each other so that an opening is formed between the two closure cover portions for removal of the mixing material from the container.

Abstract: A conversion device for converting linear movement in a stationary system into rotary movement about a pivot axis in a system which rotates about an axis of rotation that is not identical or parallel to the pivot axis. The conversion device has a lift element and a lift device with which the lift element can be moved with translatory movement relative to the stationary system. The lift element has first and second lift element portions connected together by a rotary bearing so that the first lift element portion can be rotated relative to the second lift element portion about the axis of the rotary bearing. The first lift element portion is connected to the lift device and the second lift element portion is connected to the conversion device. The conversion device is connected to a shaft positioned on the pivot axis so that a linear movement of the second lift element portion is converted into a rotary movement of the shaft about the pivot axis.

Abstract: A method for transmitting data to produce an interactive image, to a computer program for implementing the method and a client-server system operating based on the method, wherein the data include data that are already recorded and data that are added as a result of continuous measurements, where a server produces a static image and transmits it to the client for display, produces dynamic image data and transmits this to the client for display, produces an updated static image based on data present at a relevant time point or as a combination of prior static image and the dynamic image data and transmits the updated static image to the client for display instead of the previous static image and the dynamic image data such that large volumes of static and dynamic data can be displayed on the client via a small data transfer between the server and the client.

Abstract: In known methods for producing a glass component, a void-containing intermediate product containing doped or non-doped SiO2 is inserted into a sheath tube composed of glass, which has a longitudinal axis and an inner bore, and is thermally treated therein. In order to subject the intermediate product to a thermal and/or reactive treatment that is reproducible and uniform in its effect from this starting point, it is proposed in one embodiment that into the sheath tube's inner bore a first gas-permeable gas diffuser is inserted which is displaceable along the sheath tube's longitudinal axis and is pressed against the intermediate product during the thermal treatment.

Abstract: A mixer includes a mixing container having an outlet opening; a closure cover, which can be moved back and forth between a closed position, in which the closure cover closes the outlet opening, and an open position, in which the closure cover uncovers the outlet opening so that mixture can be removed from the mixing container via the outlet opening; at least one cleaning nozzle to clean the closure opening and/or a mixture outflow region arranged outside the mixing container; and a liquid feed to feed cleaning fluid to the at least one cleaning nozzle. To provide a mixer and a method for enabling cost-effective, efficient, simple and operationally reliable cleaning of the mixture outflow region and of the closure opening, at least one cleaning nozzle is fastened to the closure cover such that it is moved together with the closure cover.

Abstract: A method of producing a capillary tube from glass includes zonally softening a tubular preform having an outer diameter DOD, an inner diameter DID and a diameter ratio Drel—with Drel=DOD/DID—in a heating zone heated to a draw temperature Tdraw and drawing off continuously from the softened region a capillary strand having an outer diameter dAD, an inner diameter dID and a diameter ratio drel—with drel=dOD/dID—at a draw speed vdraw and cutting the capillary to length therefrom. For cost-effective production of a thick-walled capillary by drawing from a preform without strict requirements for the geometry and dimensional accuracy of the preform, the capillary bore is subjected in the heating zone to a shrinkage process based on the action of draw temperature Tdraw and surface tension, such that the diameter ratio drel of the capillary strand is adjusted to a value greater than the diameter ratio Drel of the preform by at least a factor of 5.

Abstract: A mixer includes a mixing container having an outlet opening; a closure cover, which can be moved back and forth between a closed position, in which the closure cover closes the outlet opening, and an open position, in which the closure cover uncovers the outlet opening so that mixture can be removed from the mixing container via the outlet opening; at least one cleaning nozzle to clean the closure opening and/or a mixture outflow region arranged outside the mixing container; and a liquid feed to feed cleaning fluid to the at least one cleaning nozzle. To provide a mixer and a method for enabling cost-effective, efficient, simple and operationally reliable cleaning of the mixture outflow region and of the closure opening, at least one cleaning nozzle is fastened to the closure cover such that it is moved together with the closure cover.

Abstract: A measuring cell includes a cavity for receiving a test sample to be used in a particle detection apparatus. The measuring cell is configured as an optical waveguide for guiding a light beam. The waveguide has a core which has a refractive index nK, extends along a longitudinal axis of the waveguide, has a cross-sectional area AK of less than 80 ?m2 in a cross section perpendicular to the longitudinal axis, and which is surrounded by a cladding having a smaller refractive index than nK. The cavity forms a channel. The channel extends along the longitudinal axis, is formed inside of or in contact with the core, and has at least one open end with an opening area AH of less than 0.2 ?m2.

Abstract: A quartz glass tube as a semi-finished product for an optical component that has an inner bore extending along a tube center axis for the acceptance of a core rod and a tube wall limited by an inner casing surface and an outer casing surface is already known; within said tube wall an inner region made of a first quartz glass and an outer region made of a second quartz glass with a different index of refraction surrounding the inner region contact one another at a contact surface which runs around the center axis. In order to provide a quartz glass on this basis that facilitates the production of optical components for special applications such as laser-activated optical components in wand or fiber form, the invention states that the contact surface has a non-round course in the radial cross-section and the inner casing surface has a circular course.

Abstract: A method for operating a computer system, a computer program for implementing the method and a computer system which executes the computer program, wherein at least one software application which functions as a host application and at least one software application which functions as a guest application are executed on the computer system, where at least one guest application offers at least one addressable software function, the host application uses at least one addressable software function of the at least one guest application based on a configuration, and where a position of the use of the at least one software function is specified on a display unit as part of the configuration.

Abstract: A method for transmitting data to produce an interactive image, to a computer program for implementing the method and a client-server system operating based on the method, wherein the data include data that are already recorded and data that are added as a result of continuous measurements, where a server produces a static image and transmits it to the client for display, produces dynamic image data and transmits this to the client for display, produces an updated static image based on data present at a relevant time point or as a combination of prior static image and the dynamic image data and transmits the updated static image to the client for display instead of the previous static image and the dynamic image data such that large volumes of static and dynamic data can be displayed on the client via a small data transfer between the server and the client.

Abstract: A method for transmitting data to produce an interactive image, a computer program for implementing the method and a client-server system operating based on the method, wherein the server, when handling a large volume of data, produces an image based on the data and transmits the image to the client for display by the client, where in the event of a user action relative to the image, user action-specific coordinates are transmitted from the client to the server that determines in the data a data point associated with the user action-specific coordinates and the pertaining detailed information and transmits the detailed information to the client for display on the client such that large volumes of data can be displayed on the client via a small data transfer between the server and the client.

Abstract: A measuring cell includes a cavity for receiving a test sample to be used in a particle detection apparatus. The measuring cell is configured as an optical waveguide for guiding a light beam. The waveguide has a core which has a refractive index nK, extends along a longitudinal axis of the waveguide, has a cross-sectional area AK of less than 80 ?m2 in a cross section perpendicular to the longitudinal axis, and which is surrounded by a cladding having a smaller refractive index than nK. The cavity forms a channel. The channel extends along the longitudinal axis, is formed inside of or in contact with the core, and has at least one open end with an opening area AH of less than 0.2 ?m2.

Abstract: A quartz glass tube as a semi-finished product for an optical component that has an inner bore extending along a tube centre axis for the acceptance of a core rod and a tube wall limited by an inner casing surface and an outer casing surface is already known; within said tube wall an inner region made of a first quartz glass and an outer region made of a second quartz glass with a different index of refraction surrounding the inner region contact one another at a contact surface which runs around the centre axis. In order to provide a quartz glass on this basis that facilitates the production of optical components for special applications such as laser-activated optical components in wand or fibre form, the invention states that the contact surface has a non-round course in the radial cross-section and the inner casing surface has a circular course.

Abstract: Cylindrical optical components of quartz glass are known, which have an inner zone made of an inner zone glass, which extends in the direction of the longitudinal axis and is surrounded by a jacket zone made of a jacket zone glass, the average wall thickness thereof varying at least over a part of its length in the direction of the longitudinal axis of the component. The aim of the invention is to provide a method that allows a simple and cost-effective production of such an optical component from quartz glass.

Abstract: The present invention relates to a mixing device, comprising a vessel for receiving material for mixing, which can be rotated abut a vessel axis and has a discharge opening disposed in the base thereof, a mixing tool disposed in the interior of the vessel, and a closure lid for closing the discharge opening, where the vessel base and/or the closure lid are provided with a wear-resistant lining on the side facing the interior of the vessel. In order to provide a mixing device having a wear-resistant lining which is less prone to wear, and in the event of wear can be replaced more easily and above all more cost-effectively, according to the invention the wear-resistant lining consists of a main lining part and a wear element, wherein the wear element is disposed closer to the vessel axis than the main lining part.