| 摘要 |
A plumb- or inclination-setting device for an apparatus such as a driling machine, crane, platform or the like, having a member which is tiltable in relation to the horizontal plane, said member being regulated from an operating position located at a distance from the tiltable member, comprises a housing attachable to the tiltable member. In the housing there is a level illuminated by a lamp or mirror and a means for magnification and reproduction of the level, so that convenient viewing of the enlarged image of this with the naked eye is permitted from the operating position. The housing has an aiming device movable in relation to and fixable to the housing, which aiming device is arranged for such advance setting that when the image of the level bubble is centered in the level housing, the tiltable member adopts a predetermined direction in both the horizontal and the vertical plane.
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