Abstract: A safety barrier is provided. The barrier has a length, a width, and a height. The barrier has an end connection at an end of the safety barrier, which end connection is arranged to be connected with a corresponding end connection of another safety barrier. The end connection comprises a receiving space adapted to receive at least a portion of an end connection of another safety barrier, and to only enable connection and disconnection with the corresponding end connection of another safety barrier by movement of the safety barriers relative to each other in direction of the height of the safety barrier. A distance through the receiving space between wall surfaces of the receiving space in the direction of the length of the safety barrier is at a minimum between upper and lower ends of the end connection and is greater at the ends.

Abstract: A heavy-duty barrier, which is movable, comprising a base part, which comprises a ballast, and a fence part attached to the base part. The fence part comprises a fixed bar structure and a rigid connection element, which is movably attached to the bar structure, and which is connectable with a complementary connection element of a neighbouring heavy-duty barrier. The connection element comprises an attachment portion movably attached to a bar portion of the bar structure, and a hook portion arranged to be engaged with a corresponding hook portion of the complementary connection element.

Abstract: The invention relates to a composite washer (100) for force indication and preventing a fastener from loosening. The composite washer comprising a top part (120) which has a circumferential extension around an axis, an elastic part (130) which has a circumferential extension around the axis a base part (140) which has a circumferential extension around the axis, wherein the top part, the elastic part and the base part are connected to each other, wherein the elastic part is arranged in-between the top part and the base part, wherein there is a central opening (102) which has an extension along the axis throughout the top part, the elastic part and the base part.

Abstract: A heavy-duty barrier, which is movable, comprising a base part, which comprises a ballast, and a fence part attached to the base part. The fence part comprises a fixed bar structure and a rigid connection element, which is movably attached to the bar structure, and which is connectable with a complementary connection element of a neighboring heavy-duty barrier. The connection element comprises an attachment portion movably attached to a bar portion of the bar structure, and a hook portion arranged to be engaged with a corresponding hook portion of the complementary connection element.

Abstract: A safety barrier is provided. The barrier has a length, a width, and a height. The barrier has an end connection at an end of the safety barrier, which end connection is arranged to be connected with a corresponding end connection of another safety barrier. The end connection comprises a receiving space adapted to receive at least a portion of an end connection of another safety barrier, and to only enable connection and disconnection with said corresponding end connection of another safety barrier by movement of the safety barriers relative to each other in direction of the height of the safety barrier. A distance through the receiving space between wall surfaces of the receiving space in the direction of the length of the safety barrier is at a minimum between upper and lower ends of the end connection and is greater at the ends.