Abstract: A method for producing a foamed mineral binder composition includes the steps of: a) separately providing: (i) an aqueous foam; and (ii) an aqueous slurry including a mineral binder and a dispersed polymer; (b) mixing the slurry of the mineral binder with the aqueous foam to obtain the foamed mineral binder composition; whereby during the production of the foamed mineral binder composition, carbon dioxide and/or a carbonate is provided such that it is incorporated in the foamed mineral binder composition.

Abstract: Methods to improve the workability of a mineral binder composition include at least one mineral binder and additionally recycled powder, said methods comprising the steps of providing at least one mineral binder, admixing recycled powder, admixing at least one workability improver selected from the group consisting of polycarboxylates, lignosulphonates, sugar acids, sugars, or mixtures thereof, and admixing water.

Abstract: Methods for the retrieval of aggregates from waste construction material by grinding in a ball mill or on a compressive grinder, which are useful in the recycling of waste construction material, especially in the recycling of concrete or mortar. Also, cleaned aggregates obtained from waste construction material by grinding and their use on the production of new construction materials.

Abstract: A process for the production of backfilling pastes for underground operations, the process including or essentially consisting of the mixing of a) cement, b) tailings from underground operations, c) optionally extra water, d) at least one polycarboxylate ether, and e) calcium hydroxide; and a method for controlling the flow of a backfilling paste for underground operations, the method including at least one step of admixing an admixture including at least one polycarboxylate ether and calcium hydroxide to a mixture of cement, tailings, and water.

Abstract: The invention relates to a multi-pole electric motor with a rotor and a stator. Said stator consists of a plurality of coils and stator plates (1, 2, 3, 4) which are magnetically separate from one another and which extend from the coils to the rotor. The stator plates (1, 2, 3, 4) are linked with a non-magnetic metal fixture (11) in an area facing the rotor. According to the method of producing the electromotor described above, the stator plates (1, 2, 3, 4) which are interlinked by one or several webs (5) are produced as one workpiece, the workpiece is linked with the non-magnetic steel fixture (11) and the web(s) between or on the stator sheets (1, 2, 3, 4) is/are severed and/or completely removed.

Abstract: A head-up display in which the light of an image-forming device (10) can be projected onto a projection surface (12) via at least one mirror (1), and the at least one mirror (1) can be rotated about a first axis of rotation (3) by an adjusting device (2, 4, 5, 6, 7, 8), and so the position of an image that can be projected onto the projection surface (12) can be varied.

Abstract: A head-up display for vehicles, in which information from a display device is projected onto a transparent projection area, the display device has two transparent screens between which a liquid crystal substance and electrodes are arranged, polarized light penetrating through the liquid crystal substance, the liquid crystal substance rotating the polarized light penetrating through the liquid crystal substance in a plane of polarization in a manner dependent on the driving of the electrodes with a voltage. The polarized light emerging form the liquid crystal substance is not sent through a polarizer, but rather is polarized by the reflection at the transparent projection area or at one or more other reflectors which is or are arranged in the beam path of the polarized light between the liquid crystal substance and the transparent projection area.

Abstract: In the case of a head-up display in which the light of an image-forming device (10) can be projected onto a projection surface (12) via at least one mirror (1), and the at least one mirror (1) can be rotated about a first axis of rotation (3) by means of an adjusting device (2, 4, 5, 6, 7, 8), and so the position of an image that can be projected onto the projection surface (12) can be varied, it is provided that the adjusting device has at least one sloping segment (5, 6) that is mounted in a fashion capable of rotation about a second axis of rotation (9), the second axis of rotation (9) not being perpendicular to the surface of the at least one sloping segment (5, 6), that the at least one mirror (1) is connected to a supporting unit (2, 2a, 2b) , that the supporting unit (2, 2a, 2b) is pressed against the sloping segment (5, 6) at a spacing from the second axis of rotation, and that, by rotating the at least one sloping segment (5, 6) , the supporting unit (2, 2a, 2b) slides over the sloping segment (5, 6)

Abstract: In a head-up display for vehicles, in which information from a display device is projected onto a transparent projection area, the display device has two transparent screens, between which a liquid crystal substance and electrodes are arranged,

Abstract: In a distributing apparatus including a tubular manifold, for an applicator for direct or indirect application of a liquid or pasty application medium onto a traveling material web, notably a paper web or cardboard web, the cross section of the tubular manifold is variable. The adjustment of the manifold permits verying the rate of application of liquid or pastry medium across the distributors width.