Abstract: A safety helmet includes a helmet shell that fits a human head and reaches up to his/her forehead area and a moveable, transparent visor mounted on the helmet shell, wherein an adapter device for attaching helmet attachments is arranged on the helmet shell at the forehead area. A rail leading towards the back of the head designed for the bearing and guidance of the visor is arranged on the adapter device.

Abstract: A sewing machine includes a contact area for two superimposed material webs, which have edges and which are to be sewn together by the sewing machine, wherein, in order to align the edges of the material webs to each other, there is a bottom guide element under the contact area for the bottom material web and a top guide element for the top material web above the contact area, wherein the guide elements are each rotatably mounted about a rotation axis. The rotation axes of the guide elements are arranged extending perpendicular to the contact area.

Abstract: A sewing machine includes a contact area for two superimposed material webs, which have edges and which are to be sewn together by the sewing machine, wherein, in order to align the edges of the material webs to each other, there is a bottom guide element under the contact area for the bottom material web and a top guide element for the top material web above the contact area, wherein the guide elements are each rotatably mounted about a rotation axis. The rotation axes of the guide elements are arranged extending perpendicular to the contact area.

Abstract: A sewing machine includes a presser foot (2) mounted pivotably about a horizontally aligned axis (1), which is configured to cooperate with an undertransporting apparatus disposed on a support area (3) for a material to be sewn, which includes two material sliders (4, 5) mounted movably with respect to one another for the continuous transport of the material in a feed direction. Both material sliders (4, 5) are configured to be extended horizontally when viewed in the feed direction both in a region before and in a region after the axis (1) of the presser foot (2).

Abstract: The invention relates to a baton comprising at least two tube pieces, an outer tube piece and an inner tube piece which can be inserted into each other like a telescope and are interlockable in both the retracted and the deployed position. A radially displaceable locking top is disposed in the final region of the inner tube piece, which can be inserted into the outer tube piece, while a circumferential catching groove is arranged on the inside of the final region of the outer tube piece. The locking top is composed of several parts that are embodied like sectors of a circle and are joined so as to form a ring while the locking cap extends past the final region of the inner tube piece by means of a locking bulb. An expanding cone for the locking top is placed in side the inner tube piece across from the catching groove for the locking bulb, said expanding cone being movable to a limited extent in an axial direction and being fixed at the end of a positioning rod.

Abstract: The invention relates to a baton comprising at least two tube pieces, an outer tube piece and an inner tube piece which can be inserted into each other like a telescope and are interlockable in both the retracted and the deployed position. A radially displaceable locking top is disposed in the final region of the inner tube piece, which can be inserted into the outer tube piece, while a circumferential catching groove is arranged on the inside of the final region of the outer tube piece. The locking top is composed of several parts that are embodied like sectors of a circle and are joined so as to form a ring while the locking cap extends past the final region of the inner tube piece by means of a locking bulb. An expanding cone for the locking top is placed in side the inner tube piece across from the catching groove for the locking bulb, said expanding cone being movable to a limited extent in an axial direction and being fixed at the end of a positioning rod.