| 摘要 |
<p>The beam compass has two sections, which are linearly movable relative to each other, and carry a drawing implement resp. a needle arrangement. The first section (12) carries a first fastening unit (22, 24) for a first drawing head (18), and a second fastening unit for a second drawing head (28). The second compass section (14) has two selectively adjustable active needle positions, one being associated with the first, and one with the second drawing head. The fastening units are located on either side of the longitudinal axis of the first section. The second compass section carries one needle (44), and may be pushed onto the first section, in two working positions, staggered by 180 deg. relative to the axis of the first section.</p> |
