Abstract: A self-propelled construction machine includes a machine frame and an operating drum arranged in a drum housing which is open downwards and is closed on both sides by an edge protector which is adjustable in height. A control assembly determines a reference value for the height of the ground surface relative to the machine frame on which the edge protector rests in a floating position, the height of the edge protector relative to the machine frame and the lowering speed of the edge protector. Furthermore, the control assembly is configured such that the height of the edge protector relative to the machine frame is determined at the point in time at which the lowering speed of the edge protector is less than a specified limit value. Preferred embodiments of the machine furthermore detect the edge protector sinking into the ground, and/or prevent the edge protector from digging into the ground.

Abstract: A self-propelled construction road milling machine, includes a machine frame and a milling drum housing, in which a milling drum is arranged. The machine includes a drive unit with which the height of the scraper blade of a scraper device can be adjusted in relation to the milling drum. A control unit for the drive unit adjusts the height of the scraper blade and a measurement device measures the distance between the lower edge of the scraper blade and the milled material. The control unit is designed in such a way that the scraper blade is height-adjustable depending on the height of the milled material remaining in the milled track. The control unit ensures that, on the one hand, the milled material can come out of the milling drum housing unimpeded behind the milling drum in the direction of work and, on the other hand, that the milling drum housing is shut above the material that is coming out.

Abstract: In an automotive milling machine, with a machine frame with longitudinal axis, with a chassis with wheels or tracked travelling drive units which support the machine frame, with a controller for the travelling, steering and milling operation, with a height-adjustable working drum, with a slewable last or single transport conveyor of specified length arranged in front of or behind the working drum as seen in the direction of travel of the milling machine, where the transport conveyor is, as a minimum, slewable sideways about an essentially vertical first axis under a slewing angle, it is provided for the following features to be achieved: the controller comprises a detection and control system which, as a minimum, detects the steering angle of the steering controller for the chassis or, as a minimum, the steering angle of the steering controller and the distance traveled or the travel speed, and controls the slewing angle of the transport conveyor in accordance with this no less than one parameter.

Abstract: A method for redundantly operating an automation system comprising one or more user computers, at least two gateway computers and a plurality of programmable logic controllers, the user computers and the gateway computers being connected to a first bus system of a first type and the gateway computers and the programmable logic controllers being connected to a second bus system of a second type, as a result of which the programmable logic controllers can be controlled and/or monitored by the user computers via one of the gateway computers, wherein to set up a communication link between one of the user computers and one or more of the programmable logic controllers, the user computer contacts a virtual gateway computer having a virtual identifier for all gateway computers of the automation system, which virtual gateway computer establishes a physical communication link to a selected one of the gateway computers.

Abstract: An injector, in particular a blow-in injector for gaseous fuel, including a first sealing element and a second sealing element, and in the closed state of the injector a first sealing region is configured between the first and second sealing element, at least one of the sealing elements having an elastic deformation region, the elastic deformation region being set apart from the sealing region between the first and second sealing element.

Abstract: A road milling machine includes a rear wheel or track mounted on a pivot arm such that the wheel or track is movable between a first outer end position projecting laterally relative to the machine frame, and a second inner end position which permits milling close to an edge. A travel drive of the rear wheel or track provides a driving force to move the wheel or track between the end positions.

Abstract: A road milling machine includes a rear wheel or track mounted on a pivot arm such that the wheel or track is movable between a first outer end position projecting laterally relative to the machine frame, and a second inner end position which permits milling close to an edge. A travel drive of the rear wheel or track provides a driving force to move the wheel or track between the end positions.

Abstract: A self-propelled construction road milling machine, includes a machine frame and a milling drum housing, in which a milling drum is arranged. The machine includes a drive unit with which the height of the scraper blade of a scraper device can be adjusted in relation to the milling drum. A control unit for the drive unit adjusts the height of the scraper blade and a measurement device measures the distance between the lower edge of the scraper blade and the milled material. The control unit is designed in such a way that the scraper blade is height-adjustable depending on the height of the milled material remaining in the milled track. The control unit ensures that, on the one hand, the milled material can come out of the milling drum housing unimpeded behind the milling drum in the direction of work and, on the other hand, that the milling drum housing is shut above the material that is coming out.

Abstract: The invention concerns a dosing system for adjusting a dose volume of a fluid medium. The dosing system has a longitudinal center axis (1), a dosing sleeve (3) with at least one communication opening (7), a dosing plunger (4), which can move axially in the dosing sleeve (3) between a retracted and a depressed position to take up and dispense the medium through the communication opening (7), and a retraction limiting element (5) to delimit a maximum axial retraction path of the dosing plunger (4). The retraction limiting element (5) in at least one position can be axially fixed to the dosing plunger (4) and can move radially to the longitudinal center axis (1) between an inner position, axially fixed on the dosing plunger (4), and an outer position relative to the dosing plunger (4). In the inner position, it is completely inside the dosing sleeve (3).

Abstract: In an automotive milling machine, with a machine frame with longitudinal axis, with a chassis with wheels or tracked travelling drive units which support the machine frame, with a controller for the travelling, steering and milling operation, with a height-adjustable working drum, with a slewable last or single transport conveyor of specified length arranged in front of or behind the working drum as seen in the direction of travel of the milling machine, where the transport conveyor is, as a minimum, slewable sideways about an essentially vertical first axis under a slewing angle, it is provided for the following features to be achieved: the controller comprises a detection and control system which, as a minimum, detects the steering angle of the steering controller for the chassis or, as a minimum, the steering angle of the steering controller and the distance travelled or the travel speed, and controls the slewing angle of the transport conveyor in accordance with this no less than one parameter.

Abstract: A road milling machine includes a rear wheel or track mounted on a pivot arm such that the wheel or track is movable between a first outer end position projecting laterally relative to the machine frame, and a second inner end position which permits milling close to an edge. A travel drive of the rear wheel or track provides a driving force to move the wheel or track between the end positions.

Abstract: The invention relates to a hydraulic accumulator device in the form of a membrane accumulator, comprising a membrane (16) which separates a pneumatic volume from a hydraulic volume. In order to improve said hydraulic accumulator device with respect to the degree of efficiency and/or manufacturing costs, the membrane (16) is tensioned between two holding bodies (4,5) which respectively comprise several recesses (11-14) and between which the membrane (16) is tensioned in order to produce several hydropneumatic membrane accumulators.

Abstract: An in-line vacuum coating system includes a vacuum chamber, a coating source and a substrate carrier for holding tubular substrates, the carrier being displaceable using the vacuum chamber. A sure method of simply and securely coupling a fixed rotational drive unit to a carrier that can be displaced at a constant rate of speed in an in-line vacuum coating system is accomplished by a fixed splined shaft rotatably installed and connectable to a rotational drive unit, and a gearwheel that can be engaged with the splined shaft and that is rotatably mounted on the carrier. The gearwheel is longitudinally displaceable to a predefined extent in spring-loaded fashion in a direction opposite to the direction of travel of the carrier.

Abstract: A method for redundantly operating an automation system comprising one or more user computers, at least two gateway computers and a plurality of programmable logic controllers, the user computers and the gateway computers being connected to a first bus system of a first type and the gateway computers and the programmable logic controllers being connected to a second bus system of a second type, as a result of which the programmable logic controllers can be controlled and/or monitored by the user computers via one of the gateway computers, wherein to set up a communication link between one of the user computers and one or more of the programmable logic controllers, the user computer contacts a virtual gateway computer having a virtual identifier for all gateway computers of the automation system, which virtual gateway computer establishes a physical communication link to a selected one of the gateway computers.

Abstract: People conveyor (2) having an endless people transportation band (4) and an endless handrail (6), a glass balustrade (8) arranged laterally to the transportation band (4) and supporting the handrail (6), and a profile (10, 12) having an U-shaped channel (38) for engaging the glass balustrade (8) and comprising an illumination cavity (44), wherein a plurality of LEDs is arranged in the illumination cavity (44).

Abstract: An in-line vacuum coating system includes a vacuum chamber, a coating source and a substrate carrier for holding tubular substrates, the carrier being displaceable using the vacuum chamber. A sure method of simply and securely coupling a fixed rotational drive unit to a carrier that can be displaced at a constant rate of speed in an in-line vacuum coating system is accomplished by a fixed splined shaft rotatably installed and connectable to a rotational drive unit, and a gearwheel that can be engaged with the splined shaft and that is rotatably mounted on the carrier. The gearwheel is longitudinally displaceable to a predefined extent in spring-loaded fashion in a direction opposite to the direction of travel of the carrier.

Abstract: The invention pertains to a plain porous bearing for motors and transmissions with a circular bearing bore that displays, distributed alternatingly across the bearing bore, highly compressed at least approximately closed-pore areas and slightly compressed, open-pore areas, where the bearing bore diameters of the highly and slightly compressed areas are at least approximately identical. Also provided is a procedure and device for production of the bearing.

Abstract: People conveyor (2) having an endless people transportation band (4) and an endless handrail (6), a glass balustrade (8) arranged laterally to the transportation band (4) and supporting the handrail (6), and a profile (10, 12) having an U-shaped channel (38) for engaging the glass balustrade (8) and comprising an illumination cavity (44), wherein a plurality of LEDs is arranged in the illumination cavity (44).

Abstract: A component having a layer system situated on the component is described, for increasing the resistance to wear of the component. The layer system in this context includes a phosphate layer and particles of solid lubricants, the layer system being free of any binding agent. A method for producing such a component is also described.

Abstract: A balustrade fastening arrangement for an escalator or passenger conveyor having a moveable skirt panel whereby the fastening arrangement secures an inner decking panel such that it overhangs the moving skirt panel between the skirt panel and the step.