Abstract: A power take-off device for use in a wave energy converter unit having a buoy includes a power take-off hull connectable to a mooring device, and connected to or connectable to the buoy, preferably by a link rope, and a power extracting device adapted to extract power as the buoy moves with the waves, by applying up to a predetermined maximum control force. A two-stage end-stop cushioning system comprises a first stage end-stop cushioning device having a first fluid cylinder adapted to apply an additional deceleration force on the device above the maximum control force, and a second stage end-stop cushioning device adapted to be extended like a spring in an end-stop operation after the first stage has been activated and when the power take-off force is higher than the above the maximum control force, to hold the buoy submerged through the crest of a large wave.

Abstract: A method for operating a working device and a working device. A working device, in particular for industrial applications, and a method for operating a working device, in which the operational safety and operational reliability are increased, are realized by carrying out at least the following method steps: detecting a safety-relevant operating situation using at least one sensor system of the working device, initiating a braking process, the braking process including using at least one drive motor of the working device to reduce speed when a critical operating situation has been detected, processing of at least one driving parameter determined after initiating the braking process, selecting between a continuation of the braking process or the initiation of an emergency braking process depending at least on the processed driving parameter.

Abstract: A power take-off device for use in a wave energy converter unit having a buoy includes a power take-off hull connectable to a mooring device, and connected to or connectable to the buoy, preferably by a link rope, and a power extracting device adapted to extract power as the buoy moves with the waves, by applying up to a predetermined maximum control force. A two-stage end-stop cushioning system comprises a first stage end-stop cushioning device having a first fluid cylinder adapted to apply an additional deceleration force on the device above the maximum control force, and a second stage end-stop cushioning device adapted to be extended like a spring in an end-stop operation after the first stage has been activated and when the power take-off force is higher than the above the maximum control force, to hold the buoy submerged through the crest of a large wave.

Abstract: A self-propelled floor processing device with an optical distance measuring device for detecting a distance between the floor processing device and an obstacle in the environment. The distance measuring device has a first triangulation device with a first light source, a first light receiver and a first lens, a second triangulation device with a second light source, a second light receiver and a second lens, and an evaluation device. Each lens bundles light of the light source reflected by an obstacle in the direction of the allocated light receiver, and images it on an imaging location on the light receiver. The evaluation device determines a distance to the obstacle based on the imaging location. The first triangulation device detects an obstacle in a close distance range to the floor processing device, and the second triangulation device detects an obstacle in a long distance range to the floor processing device.

Abstract: A brake assembly comprising a hat section having an annular portion with an outer edge, and radial ribs integral with the hat section and extending away from the outer edge, and a friction ring of predetermined thickness and positioned around said hat section in coaxial position, the ribs having ends projecting into said friction ring so that the friction ring is mounted on said ribs and can expand freely in a radial direction.

Abstract: A brake assembly comprising a hat section having an annular portion with an outer edge, and radial ribs integral with the hat section and extending away from the outer edge, and a friction ring of predetermined thickness and positioned around said hat section in coaxial position, the ribs having ends projecting into said friction ring so that the friction ring is mounted on said ribs and can expand freely in a radial direction.