Abstract: Tripod having a tripod head, a shaft, having telescopic shaft parts, attached to the tripod head via a locking mechanism, and at least three support legs mounted so as to be outwardly pivotably on the shaft. The support legs are connected to the tripod head via pulling members which can be wound up and unwound by a coil arranged rotatably on the tripod head and can be tensioned by a tensioning element. It is proposed that the coil is provided with a return spring acting in the winding direction of rotation of the coil, and a coupling mechanism is provided which can be transferred with an operating element from a rotation mode, in which the coil can be rotated in an unwinding direction of rotation and by the return spring in a winding direction of rotation, into a tensioning mode, in which the coil is locked with respect to the pulling members and the pulling members can be tensioned by the tensioning element.

Abstract: Tripod having a tripod head, a shaft, having telescopic shaft parts, attached to the tripod head via a locking mechanism, and at least three support legs mounted so as to be outwardly pivotably on the shaft. The support legs are connected to the tripod head via pulling members which can be wound up and unwound by a coil arranged rotatably on the tripod head and can be tensioned by a tensioning element. It is proposed that the coil is provided with a return spring acting in the winding direction of rotation of the coil, and a coupling mechanism is provided which can be transferred with an operating element from a rotation mode, in which the coil can be rotated in an unwinding direction of rotation and by the return spring in a winding direction of rotation, into a tensioning mode, in which the coil is locked with respect to the pulling members and the pulling members can be tensioned by the tensioning element.

Abstract: A process and an apparatus for molten slag gasification of solid fuels in a molten slag gasifier with increased output, an increased range of solid fuels that can be used and improved gas quality. The process is conducted such that, by means of a molten slag gasifier comprising a feed of the coarse-grained solid fuels and comprising a gas takeoff, both at the head of the molten slag gasifier, comprising a slag bath and comprising a slag bath takeoff at the bottom of the molten slag gasifier, comprising a feed for first gasifying means by means of gasifying means nozzles above the slag bath, comprising a filling of the fixed bed above the slag bath, in addition to the first gasifying means a second gasifying means are injected by way of at least one gasifying means nozzle that reaches into the upper region of the fixed bed.

Abstract: The invention relates to a process and apparatus for entrained flow gasification of solid fuels under pressure, characterized in that first and second gasification agents containing oxygen are supplied in at least two stages to a powdery gasification stream input from above without burners so that a first, upper gasification chamber and, connected to it, a second, lower gasification chamber are formed. There is partial gasification of the gasification materials because of the addition of the first gasification agents, which are apportioned in terms of quantity and composition; temperatures arise in the first, upper gasification chamber that are greater than 600° C. Furthermore, the carbon conversion of the first gasification products is limited to a maximum of 80% with reference to the carbon input of the gasification materials.

Abstract: A process and an apparatus for molten slag gasification of solid fuels in a molten slag gasifier with increased output, an increased range of solid fuels that can be used and improved gas quality. The process is conducted such that, by means of a molten slag gasifier comprising a feed of the coarse-grained solid fuels and comprising a gas takeoff, both at the head of the molten slag gasifier, comprising a slag bath and comprising a slag bath takeoff at the bottom of the molten slag gasifier, comprising a feed for first gasifying means by means of gasifying means nozzles above the slag bath, comprising a filling of the fixed bed above the slag bath, in addition to the first gasifying means a second gasifying means are injected by way of at least one gasifying means nozzle that reaches into the upper region of the fixed bed.

Abstract: Method for setting an electronic ballast, with which an electric lamp is operated which comprises programming first settings of at least one operational parameter of at least one first lamp type into the electronic ballast, setting and operating an electric lamp, which is connected to the electronic ballast, with the programmed first settings as long as a normal operating mode of the electronic ballast is set, changing the first settings of the operational parameters during a secondary operating mode of the electronic ballast, the secondary operating mode of the electronic ballast being set when the electronic ballast identifies a value for the resistance of a lamp filament and/or a substitute load of the electric lamp connected to the electronic ballast which is untypical in comparison with the normal operating mode, the change to the first settings being carried out depending on the identified untypical value for the corresponding resistance.

Abstract: Method for setting an electronic ballast, with which an electric lamp is operated which comprises programming first settings of at least one operational parameter of at least one first lamp type into the electronic ballast, setting and operating an electric lamp, which is connected to the electronic ballast, with the programmed first settings as long as a normal operating mode of the electronic ballast is set, changing the first settings of the operational parameters during a secondary operating mode of the electronic ballast, the secondary operating mode of the electronic ballast being set when the electronic ballast identifies a value for the resistance of a lamp filament and/or a substitute load of the electric lamp connected to the electronic ballast which is untypical in comparison with the normal operating mode, the change to the first settings being carried out depending on the identified untypical value for the corresponding resistance.

Abstract: The invention relates to a novel operating circuit for a low-pressure discharge lamp 1 with early EOL detection via a measurement of the DC voltage between the electrodes 2, 3. In this case, the DC voltage can be modified by an offset voltage 10 such that only one polarity has to be taken into account during measurement.

Abstract: The invention proposes a simpler way of removing heat from integrated power components. For this purpose, a heat transfer device, in particular a thermally conducting mat (3), is inserted between the components (2) to be cooled and a core of an inductive component (4). The heat produced by the power semiconductors (2) can thus be dissipated to the core of the inductive component (4).

Abstract: The invention relates to a novel operating circuit for a low-pressure discharge lamp 1 with early EOL detection via a measurement of the DC voltage between the electrodes 2, 3. In this case, an electrode interrogation can be carried out by checking a respective connection via the electrodes 2, 3 to a respective reference potential.

Abstract: The invention relates to a novel operating circuit for a low-pressure discharge lamp 1 with early EOL detection via a measurement of the DC voltage between the electrodes 2, 3. In this case, an electrode interrogation can be carried out by checking a respective connection via the electrodes 2, 3 to a respective reference potential.

Abstract: The invention relates to a novel operating circuit for a low-pressure discharge lamp 1 with early EOL detection via a measurement of the DC voltage between the electrodes 2, 3. In this case, the DC voltage can be modified by an offset voltage 10 such that only one polarity has to be taken into account during measurement.

Abstract: The invention relates to a circuit arrangement for operating at least one discharge lamp, which has a half-bridge inverter (T1, T2, A) with a downstream load circuit (LD, CR) and has a half-bridge capacitor (CK) and also a monitoring apparatus for monitoring a change in the voltage drop across the half-bridge capacitor (CK) which is caused by the occurrence of a rectifying action in the at least one discharge lamp LP. According to the invention, the monitoring apparatus has a first RC element (R1, C1) and a second RC element (R2, C2), which are connected to one another by a threshold switch (DC), and means for detecting the switching state of the threshold switch (DC). The first RC element (R1, C1) is connected to the center tap of the half-bridge inverter, and the second RC element (R2, C2) is connected to the half-bridge capacitor (CK).

Abstract: The invention relates to an coil former and at least one wire winding arranged on the coil former, the coil former (1) having a cylindrical sleeve (1a) whose cylinder axis runs parallel to the winding axis (A—A) of the at least wire winding, and at least two side walls (1b, 1c) arranged perpendicularly to the winding axis (A—A), and the cylindrical sleeve (1a) and the side walls (1b, 1c) forming at least one winding space for the at least one wire winding (2, 3). According to the invention, the at least two side walls (1b, 1c) each have at least one shoulder (1d, 1e), which subdivide the at least one winding space into a non-constricted first region (B1) and into at least one constricted second region (B2). In addition, the inductance element has electrical insulation (5), which bears on the at least one shoulder (1d, 1e) of the side walls (1b, 1c) and separates the non-constricted first region (B1) from the at least one constricted second region (B2).