| 摘要 |
<p>The hinged door consists of a dished circular plate, fitted at its edge with circular seal ring. The door fits in the circular opening to the pressure vessel. The door flange is fitted with a circular groove to take the radial locking bolts. Each of the bolts is connected to the operating lever. The central bracket has a sleeve (20) which can slide on the spindle (21), mounted on the door plate. The bolts are operated by the wheel which snews the central bush (25) along the bolt (22).</p> |
