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: Cutting tool for the severance of board-like or web-like workpieces (P), in particular of building boards, floorboards, rigid or flexible material or the like, also as sheet or web material, with a counterbearing, particularly in the form of a support (1d), and with at least one circular cutting blade (2) which is mounted rotatably above the counterbearing (1d) by means of a holding arrangement (3), in such a way that, in use, teeth of the circular cutting blade (2) penetrate into the board-like workpiece (P) to be severed, and, during the rotation of the circular cutting blade (2; 20), push the workpiece (P) forwards along the at least one circular cutting blade (2; 20), while at the same time the workpiece is sheared off on the counterbearing (1d). The holding arrangement (3) is connected to the counterbearing (1d) such that the forces occurring during severance can be absorbed.

Abstract: A machine tool having at least one motor-driven tool, having a gearing arrangement comprising a drive (1), a power-take-off (2), a first gear train (A) having a first directional clutch (3), by which the drive (1) is drive-connected to the power-take-off (2) whenever the drive (1) is rotated in a first direction (I), and a second gear train (B) having a second directional clutch (4), by which the drive (1) is drive-connected to the power-take-off (2) whenever the drive (1) is rotated in a second direction (II). The first and the second directional clutch (3, 4) are preferably realized as freewheels and arranged coaxially.