| 摘要 |
<p>PURPOSE:To make the change of setting in a discriminating code easy, by combining the 1st and 2nd curved surface plates having a plurality of windows. CONSTITUTION:The 1st curved surface plate A has a plurality of windows C1, C2 on split points equally dividing the 1st curve with a prescribed interval. The 2nd curved surface plate B has a plurality of windows with a certain arrangement on split points dividing the 2nd curve with a prescribed interval. The 1st and 2nd curves of the 1st and 2nd curved surface plates A, B are on the same curve and the 2nd curved surface plate B is bonded to the 1st curved surface plate A so as to be freely slided on the curve.</p> |
