Abstract: The invention relates to a method and to a measuring device for determining an angle (W; W10) from measured lengths (L1, L2, L3; L10, L20) and/or angles (?, ?) by way of trigonometric conditions. In a first embodiment, it is provided that a minimum length (L1) between a measuring point (P2) and a first wall surface (1), and a minimum length (L2) between the measuring point (P2) and a second wall surface (2), and a length (L3) between the measuring point (P2) and an intersecting point of the first wall surface (1) with the second wall surface (2) are determined from a measurement sequence of individual measurements. Based on these lengths, the required angle (W) between the first wall surface (1) and the second wall surface (2) is determined.

Abstract: The invention relates to a method and to a measuring device for determining an angle (W; W10) from measured lengths (L1, L2, L3; L10, L20) and/or angles (?, ?) by way of trigonometric conditions. In a first embodiment, it is provided that a minimum length (L1) between a measuring point (P2) and a first wall surface (1), and a minimum length (L2) between the measuring point (P2) and a second wall surface (2), and a length (L3) between the measuring point (P2) and an intersecting point of the first wall surface (1) with the second wall surface (2) are determined from a measurement sequence of individual measurements. Based on these lengths, the required angle (W) between the first wall surface (1) and the second wall surface (2) is determined.

Abstract: A device for abrasive-blasting of workpieces including a chamber (which is to be evacuated during operation) having a first opening, a nozzle pipe unit with a nozzle pipe which can be inserted through the first opening into the chamber, and a container for the accommodation of blasting material, in which case the container for the accommodation of blasting material is mounted, or can be mounted, to the nozzle pipe unit in such a manner that the blasting material can flow freely out of the container into an inlet of the nozzle pipe unit.

Abstract: A device for abrasive-blasting of workpieces including a chamber (which is to be evacuated during operation) having a first opening, a nozzle pipe unit with a nozzle pipe which can be inserted through the first opening into the chamber, and a container for the accommodation of blasting material, in which case the container for the accommodation of blasting material is mounted, or can be mounted, to the nozzle pipe unit in such a manner that the blasting material can flow freely out of the container into an inlet of the nozzle pipe unit.

Abstract: A device for the machining of surfaces comprises a first housing unit (1), at which the device is to be supported, and a second housing unit (2), in which at least one tool holding fixture (9) for the grinding tool respectively polishing tool is rotatable mounted. The first and the second housing unit (1, 2) are joined with one another relatively rotatable to each other. Furthermore the device comprises a driving unit to drive the at least one tool holding fixture (9) and to drive the second housing unit (2) for rotation relative to the first housing unit (1). As a result of the superposition of the rotation of the individual tool holding fixtures with the rotation of the housing units, in which the tool holding fixtures are mounted, arise a better and faster machining result, a good superposition of the grinding marks and thus a symmetrical grinding pattern.

Abstract: This device for the treatment of surfaces is specifically conceived as an addition to motor-driven hand tools. It includes a device mounting that can be installed securely in position on a housing component of a motorized driving unit in such a way as to be removable at will. The device also includes a tool mounting, which is designed specifically for an instrument that rubs and polishes surfaces. The device further includes a peripheral component, extending from the center, which is connected to the tool mounting in a manner such that the turning of the peripheral component, around a rotation axis, of this peripheral component sets the tool mounting in motion. The tool mounting is mounted in relation to the device mounting, in a manner such that it can be tilted, and a mechanism is envisioned, which will basically prevent the tool mounting from turning about on the rotation axis of the peripheral component, and which will simultaneously allow for the tilting of the tool reception.

Abstract: This device for the treatment of surfaces is specifically conceived as an addition to motor-driven hand tools. It includes a device mounting that can be installed securely in position on a housing component of a motorized driving unit in such a way as to be removable at will. The device also includes a tool mounting, which is designed specifically for an instrument that rubs and polishes surfaces. The device further includes a peripheral component, extending from the center, which is connected to the tool mounting in a manner such that the turning of the peripheral component, around a rotation axis, of this peripheral component sets the tool mounting in motion. The tool mounting is mounted in relation to the device mounting, in a manner such that it can be tilted, and a mechanism is envisioned, which will basically prevent the tool mounting from turning about on the rotation axis of the peripheral component, and which will simultaneously allow for the tilting of the tool reception.

Abstract: The device for the machining of surfaces, in particular through grinding or polishing, comprises a first housing unit (1), at which the device is to be supported, and a second housing unit (2), in which at least one tool holding fixture (9) for the grinding tool respectively polishing tool is rotatable mounted. The first and the second housing unit (1, 2) are joined with one another relatively rotatable to each other. Furthermore the device comprises driving means to drive the at least one tool holding fixture (9) and to drive the second housing unit (2) for rotation relative to the first housing unit (1). As a result of the superposition of the rotation of the individual tool holding fixtures with the rotation of the housing units, in which the tool holding fixtures are mounted, arise a better and faster machining result, a good superposition of the grinding marks and thus a symmetrical grinding pattern.

Abstract: An apparatus to process, in particular, curved surfaces using one or more grinding or polishing tools which includes a housing (2) having a drive system (3, 20, 19, 12) powering at least one tool seat (1) particularly for a grinding or polishing tool (W) into rotation about a longitudinal axis (4). For the purpose of multi-sided pivoting displacement of the axis of rotation (4) within a predetermined angular range (&agr;), the tool seat (1) rests pivotably in a holder (5) of the housing (2), the holder (5) including a shell (7) having an outer contour in the shape of a spherical segment and being pivotably received in an inner contour of a seat (8) also in the shape of a spherical segment. The drive system (3, 20, 19, 12) includes a pivoting ball-joint (6) coupling it to the tool seat (1) in order to drive the seat into rotation in every pivoted position.

Abstract: The present invention relates to a device and a method for abrasive blasting, in particular for the sand-blasting of relatively small workpieces, for example in the hobby sector (model building). The device comprises a chamber (2), which is closed in an essentially airtight manner on all sides and has at least one, and preferably a plurality of, closable openings (3), it being possible to evacuate the chamber. A blasting pipe unit (5), which can be introduced into the chamber via one of the openings and which has an inlet (12) for the blasting agent, an inlet (13) for air and an outlet opening (14) for the blasting agent, is connected to a blasting-agent container (8) via a feed line (7). Both the method and the device operate using subatmospheric pressure, so that it is possible, for example, to use a commercially available vacuum cleaner for evacuating the chamber.