Abstract: Multilayer interference pigment consisting of a transparent carrier material coated with alternating layers of metal oxides of low and high refractive index, the difference in the refractive indices being at least 0.1, which is obtainable by alternate coating of the transparent carrier material with a metal oxide of high refractive index and with a metal oxide of low refractive index in a wet process by hydrolysis of the corresponding water-soluble metal compounds, separation, drying and, if desired, calcination of the resulting pigment.

Abstract: In a fuel feed unit (2) a bleed valve (9) is connected to a region which is constantly filled with fuel. This means that gases pass out of the fuel feed unit (2) through the bleed valve (9). However, penetration of gases when the fuel feed unit (2) is not operating, via leaks in the bleed valve (9), is reliably avoided.

Abstract: A machine tool having a C-shaped frame has a workpiece processing station adjacent the open end of the throat, and an elongated guide rail extends in a first axis perpendicularly to the throat. A carrier extends along the guide rail, and a multiplicity of guide units are spaced along and movable on the carrier in the first axis. Workpiece clamping units are carried by the guide units, and drive means moves the guide units on the carrier. The guide rail is movable in the throat along a second axis perpendicular to the first axis, and a second carrier supported on the frame extends in a second axis parallel to the throat. A multiplicity of guide elements is spaced along and movable on the second carrier and supports the guide rail for movement in the second axis of the second guide rail.

Abstract: The present invention relates to silver-colored luster pigments based on multiply coated platelet-shaped substrates, which has at least one layer sequence of TiO2, a colorless coating and another TiO2 layer. The pigment can optionally have an outer protective layer. These luster pigments are useful and to the use thereof in paints, coatings, printing inks, including security printing inks, plastics, ceramic materials, glasses, cosmetic formulations and for producing pigment preparations and dry product forms such as granules, chips, pellets and briquettes.

Abstract: The invention relates to a platelet-shaped pigment having high luster and high covering power or high transparency, consisting of a transparent, inorganic, platelet-shaped matrix which can contain an additional constituent, characterized in that the additional constituent is a soluble or insoluble colorant and in that the matrix is coated at least on one side with one or more thin, transparent or semi-transparent reflective layers of metal oxides or metals to achieve the luster.

Abstract: The invention relates to a pump having a pump casing, in which a pump chamber is formed, having an inlet leading to it and an outlet leading away from it. In the pump chamber there is a pump impeller, which is secured to a drive shaft, which can be driven in rotation and is mounted rotatably in bearings in the pump casing. Surfaces of the pump chamber which bear against the surfaces of the pump impeller and surfaces of the pump impeller which bear against the surfaces of the pump chamber have a coating of low thickness and high hardness which is applied by physical vapor deposition.

Abstract: Motion mechanism for machine tools, and machine tool with such a motion mechanism. A drive assembly installed on machine tools includes at least one drive unit (18, 25) and, at least one motion guide (6,7) associated with the drive unit (18, 25). The drive unit (18, 25) includes at least one toothed rack (16, 23) and, meshing therewith, at least one drive pinion (17, 24). Components of the motion guide (6, 7) include at least one support structure (8, 3) as well as multiple guide units (10, 21) positioned along the support structure (8, 3) and jointly movably by a drive unit (18, 25). The toothed rack (16, 23) encompasses toothed segments (15, 22) that are at least partially integrated in at least part of the guide units (10, 21), and the guide units concerned (10, 21) are kept in alignment relative to one another so as to form the toothed rack (16, 23).

Abstract: The invention relates to interference pigments with a great color strength that are based on multicoated platelet-shaped substrates that have at least one series of layers from (A) a highly refractive coating that consists of a mixture of TiO2 and Fe2O3 in ratio of 1:0.1 to 1:5 and optionally one or more metal oxides in amounts of ≦20% by weight based on layer (A), (B) a colorless coating with a refractive index n≦1.8, (C) a colorless coating with a refractive index of n 1.8, (D) an absorptive coating with a refractive index of n 1.8, and optionally (E) an outer protective layer.

Abstract: The present invention relates to interference pigments on the basis of multiply coated, platelet-shaped substrates which comprise at least one layer sequence comprising (A) a coating having a refractive index n≧2.0, (B) a colorless coating having a refractive index n≦1.8, and (C) a nonabsorbing coating of high refractive index, and, if desired, (D) an external protective layer.

Abstract: The present invention relates to an interference pigment based on multiply-coated platelet-shaped substrates, comprising at least one layer sequence of (A) a high refractive index coating comprising a mixture of TiO2 and Fe2O3 in a ratio of about 10:1 to about 3:1 and optionally one or more metal oxides in amounts of ≲ about 20% by weight based on the layer (A), (B) a colorless coating having a refractive index n ≲ about 1.8, and optionally (C) an outer protective layer.

Abstract: The invention relates to a transparent medium comprising multilayer pigments having angle-selective reflection or transmission properties and/or absorption properties, and to their use, in particular in transparent thermal insulation systems (TTIs).

Abstract: The invention relates to a platelet-like pigment having high lustre and high covering power or high transparency, consisting of a transparent, inorganic, platelet-like matrix which can contain an additional constituent, characterised in that the additional constituent is a soluble or insoluble colorant and in that the matrix is coated at least on one side with one or more thin, transparent or semi-transparent reflective layers of metal oxides or metals to achieve the lustre.

Abstract: The present invention relates to colored pigments based on multicoated platelet-shaped substrates which are distinguished by the fact that they comprise

Abstract: The present invention relates to silver-colored luster pigments based on multiply coated platelet-shaped substrates, which has at least one layer sequence of TiO2, a colorless coating and another TiO2 layer. The pigment can optionally have an outer protective layer. These luster pigments are useful and to the use thereof in paints, coatings, printing inks, including security printing inks, plastics, ceramic materials, glasses, cosmetic formulations and for producing pigment preparations and dry product forms such as granules, chips, pellets and briquettes.

Abstract: In a fuel delivery unit for a motor vehicle, having a delivery pump which has a preliminary stage and a main stage, an outlet channel of the preliminary stage is guided radially outward and configured such that it rises upward. An inlet channel of the main stage is guided laterally past the preliminary stage. In accordance with this design, impellers of the delivery pump can be arranged particularly low down and gas bubbles are guided away out of the preliminary stage in a very simple manner.

Abstract: A machine tool having a C-shaped frame has a workpiece processing station adjacent the open end of the throat, and an elongated guide rail extends in a first axis perpendicularly to the throat. A carrier extends along the guide rail, and a multiplicity of guide units are spaced along and movable on the carrier in the first axis. Workpiece clamping units are carried by the guide units, and drive means moves the guide units on the carrier. The guide rail is movable in the throat along a second axis perpendicular to the first axis, and a second carrier supported on the frame extends in a second axis parallel to the throat. A multiplicity of guide elements is spaced along and movable on the second carrier and supports the guide rail for movement in the second axis of the second guide rail.

Abstract: Feed pumps operating on the side channel or peripheral principle are known from use in fuel feed units of motor vehicles. These feed pumps often have rings of blade chambers, which are delimited by moving blades, said rings being located opposite one another in an impeller. Impellers, of which the moving blades of blade chambers located opposite one another are arranged in a V-shaped manner in relation to one another, already achieve high efficiencies. The new feed pump is to have improved efficiency, as compared with these. The moving blades of the feed pump are arranged at an angle to the axis of rotation of the impeller, this angle of the moving blades increasing from the radially inner to the radially outer region in proportion to the radial extent of the moving blade. The feed pump is suitable particularly for use in a fuel feed unit in a motor vehicle.

Abstract: In a peripheral pump, having a rotor (2) which rotates in a pump casing (1) and having two delivery chambers (11, 12), which extend on both sides of the end sides (3, 4) and each have circular cross sections, the delivery chambers (11, 12) have a communicating passage (13) between them, formed by an overlap of their cross sections. As a result, the liquid can flow without interference from one delivery chamber (11) into the other delivery chamber (12). One delivery chamber (11) is connected to an inlet duct, while the other delivery chamber (12) is connected to an outlet duct.

Abstract: The present invention relates to non-lustrous iron oxide-containing color pigments based on dry-milled inorganic plateletlike substrates having a particle size of <60 .mu.m, characterized in that the iron oxide compound is yellow FeO(OH) and/or Fe.sub.2 O.sub.3.

Abstract: The present invention relates to laser-markable plastics whose feature is that they comprise non-lustrous pigments based on phyllosilicates which have an irregular surface.