| 摘要 |
<p>The handle (1) is mounted on the support piece (2) through a central pivot with a ring shaped piece or thick washer between spindle and handle. The handle has a rib projection (8) and the base has a rib projection (10), the thickness of both being less than the thickness of the washer. The projection (6) can be secured to either side of the handle and co-operates with a bracket on the fixed part of the window while turning handle (1) bring the rib (8) on the handle against the rib (10) on the base stopping rotation of the handle in the open position.</p> |
