Abstract: A method may include supplying electric power to a first light source and a second light source of at least two light sources by at least one ballast so that the first light source and the second light source emit a first source light and a second source light with a first and second spectral light distribution, respectively. The method further includes superimposing the first and second source light using an optical unit such that the lighting device outputs light with a spectral superposition light distribution. The method further includes detecting the light outputted from the lighting device using a light distribution sensor that provides a sensor signal corresponding to a spectral light distribution of the detected light. The method further includes comparing the sensor signal to a predefined spectral light distribution and adjusting the electric power supplied to the respective light source by the ballast based on the comparison.

Abstract: A method may include supplying electric power to a first light source and a second light source of at least two light sources by at least one ballast so that the first light source and the second light source emit a first source light and a second source light with a first and second spectral light distribution, respectively. The method further includes superimposing the first and second source light using an optical unit such that the lighting device outputs light with a spectral superposition light distribution. The method further includes detecting the light outputted from the lighting device using a light distribution sensor that provides a sensor signal corresponding to a spectral light distribution of the detected light. The method further includes comparing the sensor signal to a predefined spectral light distribution and adjusting the electric power supplied to the respective light source by the ballast based on the comparison.

Abstract: A mold device produces cast parts, in particular cast parts of complex shape, such as engine blocks, for example with 2 to 8 cylinders arranged in a row, wherein the mold device can be used, in particular, in die casting machines. The mold device has both a movable clamping plate and a permanently fixed clamping plate with movable or permanently fixed mold halves arranged thereon, wherein a water jacket insert or contour insert is placed in the movable mold halves, and the contour insert (11) is movable linearly.

Abstract: A mold device produces cast parts, in particular cast parts of complex shape, such as engine blocks, for example with 2 to 8 cylinders arranged in a row, wherein the mold device can be used, in particular, in die casting machines. The mold device has both a movable clamping plate and a permanently fixed clamping plate with movable or permanently fixed mold halves arranged thereon, wherein a water jacket insert or contour insert is placed in the movable mold halves, and the contour insert (11) is movable linearly.

Abstract: An injection-molding device is for manufacturing V-engine blocks, in particular an injection-molding machine with a fixed and moving mold half, wherein the moving mold frame contains sliders and ejectors, along with center sleeve sliders angularly arranged relative to each other and a supporting plate for locking the center sleeve slider. Therefore, the force is introduced perpendicular via the center sleeve sliders, and absorbed via the supporting plate or moving identification plate. The moving mold half is secured on a mounting frame.

Abstract: A hemispherical goniophotometer is disclosed, in which two pivoting arms are articulated on a revolving rotating arm and are each fitted with a measurement head. The geometry of the arrangement is chosen such that the measurement heads can move along the envelope surface of a hemisphere during rotating of the rotating arm through 360° and pivoting of the pivoting arms through 180°.

Abstract: The invention relates to an injection-molding device for manufacturing V-engine blocks, in particular an injection-molding machine with a fixed and moving mold half, wherein the moving mold frame contains sliders and ejectors, along with center sleeve sliders angularly arranged relative to each other and a supporting plate for locking the center sleeve slider. Therefore, the force is introduced perpendicular via the center sleeve sliders, and absorbed via the supporting plate or moving identification plate. The moving mold half is secured on a mounting frame.

Abstract: A hemispherical goniophotometer is disclosed, in which two pivoting arms are articulated on a revolving rotating arm and are each fitted with a measurement head. The geometry of the arrangement is chosen such that the measurement heads can move along the envelope surface of a hemisphere during rotating of the rotating arm through 360° and pivoting of the pivoting arms through 180°.

Abstract: Electrical incandescent lamp, in particular a halogen incandescent lamp (4) having a lamp bulb (5) which has a coating (9) that reflects IR radiation, and having a flat luminous body (10) which defines a fictional plane of the light and is arranged inside the lamp bulb (5). The shape of the lamp bulb (5) with respect to those axes which lie in the plane of the light have no rotational symmetry, but the lamp bulb (5) in fact has a shape which differs from rotational symmetry but is matched to the flat geometry of the luminous body (10), that is to say a flattened shape, in particular the shape of an ellipsoid, whose shortest half-axis is oriented at right-angles to the fictional plane of the light of the luminous body (10).

Abstract: An electric incandescent lamp with a rotationally symmetrical lamp bulb and an IR radiation reflecting coating has an ellipsoidal partial contour. ellipsoidal partial contour of the lamp bulb is produced by an elliptical section, the semiaxis of which is oriented vertically to the longitudinal axis, i.e., vertically to the rotational axis of the lamp bulb, and is longer than the greatest radius of the lamp bulb. The length of the smallest semiaxis lies preferably in the range of R<b<R+5.multidot.w.sub.x, wherein R and w.sub.x denote the largest radius of the lamp bulb and the radius of the rotational symmetrical luminous element, respectively. The lamp is characterized by uniform back reflection of IR radiation onto the luminous element arranged centrally inside the lamp bulb, and thus by a uniform temperature distribution and increased efficiency.

Abstract: An electric filament incandescent in lamp, in particular a halogen incandent lamp (9) with a rotationally symmetrical lamp bulb (10) and I.R. radiation reflecting coating (14), has an ellipsoidal partial contour. The ellipsoidal partial contour of the lamp bulb is produced by an elliptical section, the large semiaxis, and, consequently focal axis of which is oriented vertically to the longitudinal axis, i.e. vertically to the rotational axis of the lamp bulb (10). The length of the large semiaxis (a) lies preferably in the range R<a<R+5.multidot.w.sub.r, wherein R and w.sub.r respectively stand for the greatest radius of the lamp bulb (10) and the radius of the cylindrical luminous element (15). The lamp (9) is characterized by uniform back reflection of the I.R. radiation onto the cylindrical luminous element (15) arranged centrically on-axis inside the lamp bulb (10), and thus by a regular temperature distribution, as well as by increased lamp efficiency.

Abstract: An electric incandescent lamp (4), in particular an incandescent halogen p, has a bulb or envelope (5), which is shaped as an ellipsoid or optionally ellipsoidlike (barrel-shaped body) and provided with an IR layer (8). Located inside the bulb (5) axially is a compact filament (2') of circular-cylindrical outer contour; the focal lines of the ellipsoid-like barrel-shaped body each coincide approximately with the last luminous winding on the two ends of the filament. This improves lamp efficiency. The compact filament is preferably in the form of a helical coil (2'), whose power supply lead (10b) remote from the seal is returned to inside the helical coil (2'), or is shaped like a double helix.

Abstract: A reflector incandescent lamp for high-voltage operation has substantially xially parallel radiant body sections and a reflector, whose facets are formed by approximately axially parallel cylindrical segments.

Abstract: A process and device for crushing bulk materials. The material to be crushed is fed from above to a first accelerating device which accelerates it into a first crusher, the fine particles in the crushed material produced by the first crusher being carried upwards by an air or gas stream. The larger particles trickle downwards and are then carried by an air or gas stream vertically upwards to another accelerating device which accelerates them into another crusher. The fine particles produced in the second crusher are swept upwards by the air or gas stream, while the larger particles trickle downwards and are brought round to the beginning of the cycle again. The invention concerns the combination of a vertical impact crusher with a separator, both of which are preferably located inside the same housing.

Abstract: An apparatus for the cooling of dust or finely granular bulk material, having a vertical cylindrical cooling jacket, the externally cooled cylindrical surface of which is fed with the material to be cooled from the inside by means of an annular conveyor worm which conducts the material upward and presses it by centrifugal force against the heat exchange surface. In order to be able to materials which are subject to explosion safely with the apparatus, the conveyor worm is arranged on the cylindrical surface of a cylindrical hollow body which is closed at its ends, fills the greatest part of the inside of the cooling jacket, and is driven by a motor.

Abstract: The invention relates to an apparatus for classifying powdered bulk materials, particularly ground clinker, limestone or cement raw material, by air sifting. The material to be classified is fed to the cover plate of a cylindrical rotor and charged into a sifting space having the shape of a cylindrical ring which extends between the rotor and a stationary vane ring which is spaced from and surrounds the rotor. While the coarse material descends in the sifting space, the fine material is conveyed into the inside of the rotor and fed to a subsequent separating device for the separating of fine material and sifting air. In order to simplify the construction and stocking, both the rotor and the housing surrounding it are assembled in building-block fashion from a plurality of identical sections, at least one tangential air inlet connection being associated with each housing section. Each housing section can have associated with it at least one cyclone of its own with its own fan.