Abstract: The present invention relates to a composition comprising a metal complex of a 1,3-diketone and an optionally substituted full ester of a monool or a diol and a monocarboxylic acid; wherein a mixture consisting of (a) and (b) has a viscosity of less or equal than 40 mPa·s when measured at 80° C.

Abstract: Electric lamp with a base at one end, having an inner vessel surrounded by an outer jacket, a base with electric connections supporting the inner vessel and the outer jacket, having the following features: a) the base has a base insulator with a central opening with a surrounding collar in which the inner vessel is held without cement; b) the base insulator has a circular, radially projecting segment with an associated upper and lower plateau with reference to the base; c) the outer jacket has a circular opening on the base side with a radially projecting edge that has an upper and lower contact surface with reference to the base, the lower contact surface of the edge being compatible with the upper plateau of the circular, radially projecting segment at the base insulator; and d) the outer jacket is fastened on the base by a cementless mechanical holding mechanism.

Abstract: Electric lamp with a base at one end, having an inner vessel surrounded by an outer jacket, a base with electric connections supporting the inner vessel and the outer jacket, having the following features: a) the base has a base insulator with a central opening with a surrounding collar in which the inner vessel is held without cement; b) the base insulator has a circular, radially projecting segment with an associated upper and lower plateau with reference to the base; c) the outer jacket has a circular opening on the base side with a radially projecting edge that has an upper and lower contact surface with reference to the base, the lower contact surface of the edge being compatible with the upper plateau of the circular, radially projecting segment at the base insulator; and d) the outer jacket is fastened on the base by a cementless mechanical holding mechanism.

Abstract: According to the state of the art, LC displays are known whose torsion angle is between about 180.degree. and 300.degree.. Such displays exhibit good independence of angle of view of white impression and contrast, but they are not gray scale capable and are not free of hysteresis. For that reason, the invention presents a display (10) whose product of plate separation (d) and anisotropy of the angle of refraction is equal to or greater than 0.45 and smaller than 0.65 .mu.m, whose torsion angle .phi. is between 260.degree. and 360.degree., whose liquid crystal molecules (18) have an approach angle .theta. between 7.degree. and 25.degree., and encompass a liquid crystal material between the substrate plates (11) in which the relationship of the elastic constant K.sub.3 to the elastic constant K.sub.1 is between 1.4 and 0.6. The angular relationships (.beta., .gamma.) of the polarization directions P.u, P.o with the respective orientation direction .eta..u, .eta..o is a function of torsion angle .phi..

Abstract: A method of producing a substrate plate for a liquid crystal cell with black matrix areas in which blackened polymer material is already deposited before the structured areas of photosensitive resist overlying the structured electrode areas are removed. Rather, these structured areas of photosensitive resist are removed only after the blackened polymer material has been hardened.This processing sequence has the advantage that no special alignment processes are needed in order to arrange the black matrix areas accurately between the electrode areas.

Abstract: In a process for applying orientation layers to cell plates (11.o, 11.u), the cell plates are arranged in relation to a centrifuge rotational axis (14) so that the plate planes lie parallel to the rotational axis. The centrifugal forces then act over the entire plate surfaces in the same direction in each case. This leads to a homogeneous pre-alignment of the orientation layer molecules.Because a homogeneous pre-alignment of orientation layer molecules can be achieved with this process, an improved orientation effect can be obtained.

Abstract: A black-white liquid crystal display (10) contains a nematic liquid crystal with a twist of 270.degree. between cell plates. The product of the liquid crystal layer thickness and anisotropy of the refractive index is about 0.38. A pretilt of about 15.degree. is present. The polarization directions (P1, P2) have an angle .beta. of 45.degree. to the orientation directions (Mo, Mu). This display features a very wide viewing angle range with relatively little dependence of the contrast on the viewing angle and there is an almost complete absence of color shift depending on the viewing angle. Due to the significant enhancement in viewing angle range in relation to contrast and color neutrality compared with all known cells, the display is called "Extended Viewing Angle" display (EVA display). It has a very high multiplexability.

Abstract: The invention relates to automatic sewing and/or joining of textiles, high polymer materials, leather and metals. The object of the invention is to automate the sewing opertion system, to improve the quality of the seam and to conserve labor. A self-regulating system has to be created. According to the invention, the sewing operation is carried out as a control process, in which the deviation of the produced seam shape from the stored seam shape serves as a control value for the transporting elements of the sewing goods. For this, one or a plurality of detection heads and light emitters are arranged in the area of the seaming point, and are connected to an information processing system. The seam shape initially arising is transformed into storable data, is stored together with other data of the seam, and the seam path arising from automatic sewing is compared with the stored data. Deviations from the desired seam path are at once automatically corrected.

Abstract: A method is provided for inhibiting the development of friction fatigue stress between the mating surfaces of paired machine parts, and particularly those subject to oscillatory loads. This is achieved by maintaining the mating surfaces separated by placing between them a material either of a different crystal structure than the parts separated, or a material of a greater hardness. The separating material may be in the form of a connecting element, or it may be coated onto one of the mating surfaces.