Abstract: An optoelectronic sensor for detecting objects in a detection zone is provided that comprises a light reception element for generating a received signal from light that is incident on the light reception element from the detection zone, a display device for highlighting the location of the detection zone for the human eye by a light pattern projected into the detection zone, and a control and evaluation unit for evaluating the received signal, In this respect, the light pattern has at least two partial patterns that are projected from different sources and that together mark a center of the detection zone independently of a distance into which the light pattern is projected into the detection zone.

Abstract: A linoleum composition comprising Bedford cement as a binder, wood flour as a filler, and wax in an amount effective to provide the wood flour filler with hydrophobic properties.

Abstract: Described herein are surface coverings comprising a carrier, a first linoleum composition, and a second linoleum composition; wherein the flow rate of the first linoleum composition is greater than the flow rate of the second linoleum composition.

Abstract: A safety lock out switch system for the prevention of an unexpected restart of an electrically powered machine in whose main power circuit it is installed. Therein the power-free status of the power supply output of the system is confirmed visually. The system is configured so it is flexible, thus being able to be used in the most various types or sizes of machines. Technical aspects and safety aspects were taken into account therein so that the installation can be carried out in practically every country in the world.

Abstract: A protective circuit arrangement includes at least two power contactors that have main make contact elements arranged in enable circuits. Each main make contact element of a power contactor is connected in series to a main make contact element of another power contactor in each respective enable current circuit. A respective coil circuit make contact element is provided in the coil current circuit of each coil of each power contactor, whereby the coil circuit make contact elements can be jointly actuated. The main make contact elements of each power contactor are disposed between two respective auxiliary contact units which each have a respective make contact element and a respective break contact element, and which are respectively configured as positively driven contacts. The make contact elements of all auxiliary contact units arc connected in series in a first indicator circuit, and the break contact elements of all auxiliary contact units are connected in series in a second indicator circuit.

Abstract: The invention relates to a circuit provided with a protective function which contains at least two power contactors that have main make contact elements arranged in release current circuits (4). According to the invention, each main make contact element (11; H12; H13) of a power contactor is connected in series to a main make contact element (H21; H22; H23) of another power contactor in the respective release current circuit (4). Each make contact element (S1; S2) is provided in the coil current circuit (1; 1′) of each coil (K 1; K2) of each power contactor, whereby the make contact elements can be jointly actuated. The main make contact elements of each power contactor are spatially arranged between two auxiliary contact units which each have a make contact element (T1; T3 or T2; T4) and a break contact element (VI; V3 or V2; V4), and which are configured as positively driven contacts.