Abstract: A rear wing device for a motor vehicle has a wing body which extends transversely with respect to a longitudinal direction of the vehicle and horizontally and is disposed laterally between two side parts extending parallel to the longitudinal direction and vertically. The wing body is fastened to each side part by a retaining device, wherein the retaining devices permit adjustment of an angle of attack of a profile of the wing body in relation to a horizontal orientation. The adjustability of the wing body can be improved in that each retaining device has a guide body which can be adjusted by an adjusting screw along the adjusting screw and is coupled via a first guide pin to a wing support to which the wing body is attached. The wing support can be adjusted in a manner guided by a second guide pin and a third guide pin in slideways.

Abstract: A rear wing device for a motor vehicle has a wing body which extends transversely with respect to a longitudinal direction of the vehicle and horizontally and is disposed laterally between two side parts extending parallel to the longitudinal direction and vertically. The wing body is fastened to each side part by a retaining device, wherein the retaining devices permit adjustment of an angle of attack of a profile of the wing body in relation to a horizontal orientation. The adjustability of the wing body can be improved in that each retaining device has a guide body which can be adjusted by an adjusting screw along the adjusting screw and is coupled via a first guide pin to a wing support to which the wing body is attached. The wing support can be adjusted in a manner guided by a second guide pin and a third guide pin in slideways.

Abstract: A dental milling instrument includes a base connected to a guide column for a vertically adjustable milling arm which receives a milling unit. The milling arm can be displaced by its supporting slide along a guideway of the guide column, by means of an electromotive height-adjusting drive. A threaded spindle, capable of being driven by an adjusting motor, is in engagement in a backlash-free and self-locking manner with a spindle nut provided in the supporting slide. Vertical positioning and vertical fixation are accomplished entirely from an operating panel provided on the base.

Abstract: A dental milling instrument includes a base connected to a guide column for a vertically adjustable milling arm which receives a milling unit. The milling arm can be displaced by its supporting slide along a guideway of the guide column, by means of an electromotive height-adjusting drive. A threaded spindle, capable of being driven by an adjusting motor, is in engagement in a backlash-free and self-locking manner with a spindle nut provided in the supporting slide. Vertical positioning and vertical fixation are accomplished entirely from an operating panel provided on the base.