Abstract: To pave a multi-layer road surface, a first pavement layer is paved along a roadway using a first road paver. A second pavement layer is paved over the first pavement layer using the first road paver or using a second road paver. Upon paving the first pavement layer, paving data is recorded that allows determining at least a progression track traveled during paving of the first pavement layer by a screed outer edge of the first road paver. The paving data is used to control the first road paver or the second road paver when the second pavement layer is paved.

Abstract: The disclosure relates to a road paver comprising a towing vehicle, at least one tow arm, a screed assembly attached to a tow point of the tow vehicle via the at least one tow arm, a leveling cylinder adapted to adjust a position, in particular a height, of the tow point, a screed lifting cylinder adapted to adjust a contact pressure of the screed assembly, a first measuring device adapted to determine a screed height of the screed assembly, a second measuring device adapted to determine an attack angle of the screed assembly, and a feedback control device adapted to control the leveling cylinder and the screed lifting cylinder. The disclosure further relates to a method for feedback controlling a position of a screed assembly and a use of a feedback control device for feedback controlling an attack angle and a screed height of a screed assembly.

Abstract: The invention relates to improvements in the technical field of supplying cannulas (2). For this purpose, there is proposed, inter alia, a supply device (1), the removal carriage (4) of which includes at least one cannula receptacle (6) for accommodating a cannula (2), said cannula receptacle (6) being connectable or connected to a vacuum source (7) in order for a cannula (2) to be fixed in the cannula receptacle (6).

Abstract: A method for adapting a leveling control of a road finishing machine comprises: detecting first ground profile data of a first ground profile of a foundation in a surrounding area of the road finishing machine at point in time t0, wherein the road finishing machine is located at position x0; detecting second ground profile data of a second ground profile of the foundation in a surrounding area of the road finishing machine at point in time t1, wherein the road finishing machine is located at position x1, and the second ground profile partially overlaps the first ground profile; determining a translational and rotational matrix which maps a movement of the road finishing machine in space from the point in time t0 to the point in time t1; creating corrected ground profile data from the ground profile data by means of the matrix; determining an analysis region LA comprising at least a section of the first ground profile data L0 and/or a section of the corrected ground profile data; analyzing the analysis re

Abstract: A road finishing machine with a screed for producing a paving layer on a subsoil includes a leveling system for height adjustment of the screed for compensating for irregularities in the subsoil. The leveling system includes a cascade control having either a central control loop between outer and inner control loops that includes a control unit to determine, on the basis of a detected actual value of a pulling point position of a pulling point of the screed to a predetermined reference, and on the basis of a desired value of the pulling point position, a desired value of a leveling cylinder position, or a pulling point control between the outer and inner control loops to determine, on the basis of the desired value of the pulling point position of the pulling point of the screed, the desired value of the leveling cylinder position.

Abstract: A road finishing machine comprises a screed for producing a paving layer on a subsoil on which the road finishing machine is movable in a laying direction, wherein the screed has a pulling arm fixed to the road finishing machine at a front pulling point by a levelling cylinder; at least one measuring means for performing a distance measurement, a storage means, and a controlling system. The controlling system is embodied to calculate a correction value in response to at least one distance measurement performed with respect to the subsoil and/or to a reference, which is performable at a measuring point in front of a front edge of the screed, to at least temporarily store the correction value in the storage means and calculate a desired levelling value for the measuring point taking into consideration the stored correction value, based on which the levelling cylinder of the screed is controllable.

Abstract: A torque transmission apparatus for transmission of a torque to a transmission of a vehicle which can be driven via a hybrid drive is disclosed. The torque transmission apparatus comprises an input shaft, a rotor shaft, and a clutch device. The input shaft can be connected or is connected in a torque-transmitting manner to an internal combustion engine. The rotor shaft can be connected or is connected in a torque-transmitting manner to an electric machine. The clutch device connects the input shaft and the rotor shaft at least temporarily in a torque-transmitting manner. The clutch device can be configured in a first operating state, to transmit a torque between the input shaft and a transmission shaft which is assigned to a transmission via the rotor shaft. The crutch device can also be configured in a further operating state to transmit a reduced torque or no torque between the input shaft and the transmission shaft.

Abstract: A torque measurement system for measuring a torque acting on a rotatable shaft is provided. The torque measurement system includes a first housing portion having a first end adapted to be fixedly coupled to the rotatable shaft and a second end. The torque measurement system includes a second housing portion having a first end spaced apart from the second end of the first housing portion so as to define a gap between the first housing portion and the second housing portion. The second housing portion is adapted to be fixedly coupled to the rotatable shaft. The torque measurement system includes at least one sensor that observes at least one of the second end of the first housing portion, the first end of the second housing portion and the gap and generates sensor signals based on the observation. The sensor signals are indicative of a torque acting on the rotatable shaft.

Abstract: A torque measurement system for measuring a torque acting on a rotatable shaft is provided. The torque measurement system includes a first housing portion having a first end adapted to be fixedly coupled to the rotatable shaft and a second end. The torque measurement system includes a second housing portion having a first end spaced apart from the second end of the first housing portion so as to define a gap between the first housing portion and the second housing portion. The second housing portion is adapted to be fixedly coupled to the rotatable shaft. The torque measurement system includes at least one sensor that observes at least one of the second end of the first housing portion, the first end of the second housing portion and the gap and generates sensor signals based on the observation. The sensor signals are indicative of a torque acting on the rotatable shaft.

Abstract: A wall fastening is disclosed for a hollow wall, which includes a first section forming a hook configured to remain in front of the hollow wall and a second section which extends through a bore in the hollow wall and configured to fasten behind the hollow wall. The second section is bent, after insertion, in a final installation position, such that a tip at an end of a final section of the second section presses against a rear side of the hollow wall at a lateral distance, with a definable radius, from the bore in the hollow wall.

Abstract: Floor covering, including hard floor panels which, at least at the edges of two opposite sides, are provided with coupling parts, cooperating which each other, substantially in the form of a tongue and a groove, wherein the coupling parts are provided with integrated mechanical locking elements which prevent the drifting apart of two coupled floor panels in a direction (R) perpendicular to the related edges and parallel to the underside of the coupled floor panels, and provide a snap-action coupling.

Abstract: Floor covering, including hard floor panels which, at least at the edges of two opposite sides, are provided with coupling parts, cooperating which each other, substantially in the form of a tongue and a groove, wherein the coupling parts are provided with integrated mechanical locking elements which prevent the drifting apart of two coupled floor panels in a direction (R) perpendicular to the related edges and parallel to the underside of the coupled floor panels, and provide a snap-action coupling.

Abstract: Floor covering, including hard floor panels which, at least at the edges of two opposite sides, are provided with coupling parts, cooperating which each other, substantially in the form of a tongue and a groove, wherein the coupling parts are provided with integrated mechanical locking elements which prevent the drifting apart of two coupled floor panels in a direction (R) perpendicular to the related edges and parallel to the underside of the coupled floor panels, and provide a snap-action coupling.

Abstract: A wall fastening is disclosed for a hollow wall, which includes a first section forming a hook configured to remain in front of the hollow wall and a second section which extends through a bore in the hollow wall and configured to fasten behind the hollow wall. The second section is bent, after insertion, in a final installation position, such that a tip at an end of a final section of the second section presses against a rear side of the hollow wall at a lateral distance, with a definable radius, from the bore in the hollow wall.

Abstract: A semiconductor gas sensor is provided that has a gas-sensitive gate electrode separated by a gap from a channel region and is embodied as a suspended gate field effect transistor or the gate electrode is arranged as a first plate of a capacitor with gap and a second plate of the capacitor is connected to a gate of the field effect transistor embodied as capacitively controlled and the gate electrode has a conductive carrier layer with a bearing adhesion promoter layer and a gas-sensitive layer bearing on the adhesion promoter layer, wherein the gate electrode as a gas-sensitive layer has a platinum/gold alloy with a gold proportion in a range of 1% to 20% and a polymer layer with a thickness of less than 100 nm is embodied on the surface of the platinum/gold alloy and the gap is filled with an oxygen-free gas mixture.

Abstract: Floor covering, including hard floor panels which, at least at the edges of two opposite sides, are provided with coupling parts, cooperating which each other, substantially in the form of a tongue and a groove, wherein the coupling parts are provided with integrated mechanical locking elements which prevent the drifting apart of two coupled floor panels in a direction (R) perpendicular to the related edges and parallel to the underside of the coupled floor panels, and provide a snap-action coupling.

Abstract: Floor covering, including hard floor panels which, at least at the edges of two opposite sides, are provided with coupling parts, cooperating which each other, substantially in the form of a tongue and a groove, wherein the coupling parts are provided with integrated mechanical locking elements which prevent the drifting apart of two coupled floor panels in a direction (R) perpendicular to the related edges and parallel to the underside of the coupled floor panels, and provide a snap-action coupling.

Abstract: Floor covering, including hard floor panels which, at least at the edges of two opposite sides, are provided with coupling parts, cooperating which each other, substantially in the form of a tongue and a groove, wherein the coupling parts are provided with integrated mechanical locking elements which prevent the drifting apart of two coupled floor panels in a direction (R) perpendicular to the related edges and parallel to the underside of the coupled floor panels, and provide a snap-action coupling.

Abstract: Floor covering, including hard floor panels which, at least at the edges of two opposite sides, are provided with coupling parts, cooperating which each other, substantially in the form of a tongue and a groove, wherein the coupling parts are provided with integrated mechanical locking elements which prevent the drifting apart of two coupled floor panels in a direction (R) perpendicular to the related edges and parallel to the underside of the coupled floor panels, and provide a snap-action coupling.