Abstract: The present invention relates to an aircraft comprising a fuselage (100) comprising a fuselage axis (101), a first wing arrangement (110) and a second wing arrangement (120). The first wing arrangement (110) is mounted to the fuselage (100) such that the first wing arrangement (110) is tiltable around a first longitudinal wing axis (111) of the first wing arrangement (110) and such that the first wing arrangement (110) is rotatable around the fuselage axis (101). The second wing arrangement (120) comprises at least one propulsion unit (122), wherein the second wing arrangement (120) is mounted to the fuselage (100) such that the second wing arrangement (120) is tiltable around a second longitudinal wing axis (121) of the second wing arrangement (120) and such that the second wing arrangement (120) is rotatable around the fuselage axis (101).

Abstract: The present invention relates to a device for generating aerodynamic lift and in particular an aircraft (100) for vertical take-off and landing. A wing arrangement (110) comprises at least one propulsion unit (111), wherein the propulsion unit (111) comprises a rotating mass which is rotatable around a rotary axis (117). The wing arrangement (110) is mounted to a fuselage (101) such that the wing arrangement (110) is tiltable around a longitudinal wing axis (112) of the wing arrangement (110) and such that the wing arrangement (110) is rotatable with respect to the fuselage (101) around a further rotary axis that differs to the longitudinal wing axis (112). An adjusting mechanism adjusts a tilting angle of the wing arrangement (110) around the longitudinal wing axis (112) under influence of a precession force (Fp) which forces the wing arrangement (110) to tilt around the longitudinal wing axis (112).

Abstract: An aircraft for vertical take-off and landing. The aircraft comprises a first wing, a second wing and a fuselage. The first wing comprises a first longitudinal wing axis and the second wing comprises a second longitudinal wing axis. The first wing extends along the first longitudinal wing axis and the second wing extends along the second longitudinal wing axis from the fuselage. The first wing is tiltable with a first rotational direction around the first longitudinal wing axis and the second wing is tiltable with a second rotational direction around the second longitudinal wing axis. In a fixed-wing flight mode, the wings do not rotate around a second axis. In a hover flight mode, the wings are tilted around the longitudinal wing axis with respect to its orientation in the fixed-wing flight mode and that the wing rotates around the second axis.

Abstract: A worktable, particularly for workshops, has downwardly open, U-shaped frames for supporting a table plate. The U-shaped frames have a front frame spar, a rear frame spar and an upper transverse spar, which links the front and rear frame spars. In order to create a worktable, which can be manufactured particularly simply and inexpensively and has a particularly high stability, according to the invention, U-shaped girders are provided, which are positioned with an upwardly directed opening and are constructed for receiving and guiding the downwardly open, U-shaped frames.

Abstract: This invention relates to a support system for workplace furniture, particularly workshop furniture, with vertical girders, horizontal girders and transverse girders. In order to create a support system for workplace furniture, particularly workshop furniture, which satisfies extremely high stability demands and simultaneously ensures a variant-rich design, at least the vertical girders are formed by a cross profile, which has perpendicularly arranged profile legs. Horizontal girders, transverse girders and further furniture components can be directly or indirectly fixed by the aid of fixing blocks to the profile legs.

Abstract: Tensioning handle for a root-canalling instrument and comprising a grip (1) with an outside-threaded shank (2) at one end, an inside-threaded cap (3) that screws onto the shank, a bore (4) that extends axially through the shank and the cap, and a tensioner that surrounds a tool inserted in the bore and tightens around the shaft of the tool when the cap is screwed tight, characterized in that the tensioner comprises sleeves (10) that loosely surround the shaft (5) of the tool (6) and have opposing sloping surfaces (15 & 16) that displace them laterally when the cap is screwed on.