Abstract: An air-guiding device for a motorcycle is provided to provide defined guidance of wind airflow in a region of a motorcycle fork. The air-guiding device include at least one rear guiding element in the longitudinal direction configured to be rigidly fastened to the motorcycle behind the motorcycle fork, and a front guiding element configured to be fastened indirectly or directly to the rear guiding element in front of the motorcycle fork in a manner which allows the front guiding element to rotate relative to the rear guiding element when the motorcycle fork is rotated about a vertical axis. The air guiding device may also be provided with a central guiding element behind the motorcycle for which is connected to the front guiding element and rotatable relative to the rear guiding element.

Abstract: An air-guiding device for a motorcycle is provided to provide defined guidance of wind airflow in a region of a motorcycle fork. The air-guiding device include at least one rear guiding element in the longitudinal direction configured to be rigidly fastened to the motorcycle behind the motorcycle fork, and a front guiding element configured to be fastened indirectly or directly to the rear guiding element in front of the motorcycle fork in a manner which allows the front guiding element to rotate relative to the rear guiding element when the motorcycle fork is rotated about a vertical axis. The air guiding device may also be provided with a central guiding element behind the motorcycle for which is connected to the front guiding element and rotatable relative to the rear guiding element.

Abstract: A guard device for a hand power tool, in the form of a sanding/grinding hand power tool, has a wheel guard enclosing at least part of a rotating tool in a radial direction; a guide for guiding the wheel guard along a work piece, and comprising a fastening device for mounting the wheel guard on the hand power tool, wherein the guide is joined with the wheel guard in torsion-resistant fashion, and the wheel guard is mounted in a fashion that allows it to move relative to the fastening device; and a depth-of-cut stop limiting the relative movement of the wheel guard and fastening device, and being lockable in position with positive engagement in preselected stepped positions.

Abstract: The invention is based on a guard device (33) for a power tool, in particular for a sanding power tool, having a protective cover (40) that is provided to at least partially encompass a disk-shaped, rotating tool, and having a dust removal tube (52), the longitudinal axis of which is located at an angle of up to 80° to the axis of rotation of the tool. It is proposed that part of the dust removal tube (52) passes through the plane of a flat side of the tool.

Abstract: The invention is based on a tool receiver for a grinder, in particular for a handheld angle grinder (10), having a carrier device (12, 14, 16, 182, 184, 300), via which an application tool (18, 32, 186, 188) can be actively connected to a drive shaft (54). It is proposed that the application tool (18, 32, 186, 188) be actively connectable to the carrier device (14, 16, 182, 184) via at least one detent element (24, 26, 190, 192, 194, 196, 198, 200, 302) movable against a spring force that snaps into place in an operating position of the application tool (18, 32, 186, 188) and immobilizes the application tool (18, 32, 186, 188) with positive engagement.

Abstract: The invention is based on a guard device (33) for a power tool, in particular for a sanding power tool, having a protective cover (40) that is provided to at least partially encompass a disk-shaped, rotating tool, and having a dust removal tube (52), the longitudinal axis of which is located at an angle of up to 80° to the axis of rotation of the tool.

Abstract: The invention is based on a guard device (33) for a hand power tool, in particular for a sanding/grinding hand power tool, comprising a wheel guard (40) that is provided to enclose at least part of a rotating tool in the radial direction, and comprising a guide means for guiding the wheel guard (40) along a work piece (30), as well as a fastening device for fastening the wheel guard (40) to the hand power tool.

Abstract: The invention is based on a tool receiver for a grinder, in particular for a handheld angle grinder (10), having a carrier device (12, 14, 16, 182, 184, 300), via which an application tool (18, 32, 186, 188) can be actively connected to a drive shaft (54).

Abstract: The invention relates to a catalyst for preparing organosiloxanes and polyorganosiloxanes which are obtained primarily by polycondensation processes. The catalyst of the invention is a reaction product of phosphonitrilic chloride with a compound of the general formula ?R.sub.3 SiO(R.sub.2 SiO).sub.m !.sub.3 P.dbd.O (I), where R are, independently of one another, identical or different, unsaturated and/or saturated monovalent hydrocarbon radicals having from 1 to 6 carbon atoms or hydrogen, with the proviso that only one hydrogen atom is bound to each silicon atom and m has a value between 0 and 1000. Volatile chlorine-containing silicon compounds formed during the reaction can, if required, be completely or partially removed.

Abstract: A gas laser has a coolable inner electrode for connection to a radio-frequency power source and a coolable outer electrode that is coaxial with and radially spaced from the inner electrode with an excitation space containing the gas to be excited in the radial space between the inner and outer electrodes. With a view to improving a laser of this type in such a way that excitation at higher power with retention of homogeneous discharge is possible, that gas decomposition is slower, and that any desired liquid coolant can be used regardless of the electrical conditions, the excitation space is radially bounded by two, tubular dielectric bodies which are coaxial with and radially spaced from each other.

Abstract: A gas laser has (1) a reflecting body with a reflecting surface, (2) excitation space structure cooperative with the reflecting body for defining an excitation space which is open opposite the reflecting surface of the reflecting body, (3) devices for lasingly exciting a gas in the excitation space and (4) a mirror assembly. The mirror assembly has a mirror having a reflecting surface facing the opening in the excitation space. A radial flange is about the mirror with the reflecting surface of the mirror on one axial side of the radial flange. At least one spacer and, preferably three, circumferentially-spaced bars project from the excitation space structure and engage the radial flange substantially axially for supporting it at least one of axially slidably and tiltably. Bellows sealingly connect the one axial side of the radial flange to the opening of the excitation space structure and its other axial side to a backplate immovably connected to the spacer bar on the other axial side of the radial flange.

Abstract: To permit flexibility in chemical testing steps, a plurality of automatic chemical apparatus units are arranged in modular form, each unit including a main sample receptacle transport conveyor to move the receptacle holding a sample to be tested in a main transport path, a plurality of test and treatment containers being associated with each unit, and a sampling transfer station is located to extract a sample of test substance from the sample receptacle and introduce it into one of the test and treatment containers, which test and treatment container is then moved in a separate test and treatment conveyor path along a plurality of testing and treatment stations until the entire analysis of the removed sample is completed, at which time a new sample receptacle is moved along the main path to the sampling transfer station for introducing a new sample into a subsequent test and treatment receptacle.