Abstract: The invention relates to a rotor blade for a wind turbine. The rotor blade includes at least one fan (3) for generating an airflow in the rotor blade and at least one heating device (6) for heating at least one part of the airflow. The heating device (6) has at least one heating module (15).

Abstract: In order to force the cell of an electro-optic display device into a defined position against a stop means rigidly mounted on the housing, for the purpose of zebra-rubber contacting with a pc motherboard rigidly installed in the housing, without obstructing the installation of the cell behind the sight opening of the housing, or without posing the hazard of damaging the sharp glass fracture edges of the glass plates of the cell, at least one leaf-type spring is clamped opposite the stop, such spring supporting itself in the direction of the stop on the edge of a glass plate of the cell, on the one hand, and in the opposite direction against an abutment, on the other hand, such abutment being rigidly mounted on the housing. The spring is punched in the form of a flap with an approximately U-shaped section from the lateral zone of a foil flatly resting against the cell, such flap bridging the free space between the cell and the abutment.

Abstract: A turn angle indicator or angular displacement indicator and, more particularly, relates to a capacitive turn angle indicator, especially a positioning sensor for a flap or throttle valve, including a supporting plate fastened to the apparatus at a close narrow distance in front of a further supporting plate which is rotatable planar-parallel relative thereto and which is utilized for a mutually oppositely located narrow spoke or sector-shaped electrode pattern, and with a bearing structure for the rotatable supporting plate and which is fastened to the apparatus. The supporting plates are guided relative to each other through the intermediary of compressively-loaded distance spacers which are arranged in the region of the outer edges of the plates which extend in parallel with the axis of rotation of the rotatable plate.

Abstract: The invention relates to a sizing for the treatment of glass fibers, which are incorporated into thermoplastic materials as reinforcement. The sizing contains a Schiff's base, preferably in concentrations of 0.05 to 2% by weight, based on the dry matter. Through the use of a sizing with this component, the tensile and impact strength properties of the glass fiber-reinforced thermoplastic materials are improved significantly.Key WordsSizing, glass fibers, roving preparation, glass fiber reinforcement, thermoplastic materials, tensile properties, tenacity properties.