| 摘要 |
<p>The device has a fixed part comprising a base (3) fixed to a floor in bottom of a lift shaft. A mobile part carries a pulley (7) in which an overspeed governor cable passes. The mobile part comprises rollers sliding in a C-shaped section of a vertical rail (4) of the fixed part. Plates (6) are stacked in a frame (5) of the mobile part, and are removable for adjusting the mass of the device. The mobile part has a vertical dimension equal to nominal diameter of the pulley, which is increased by 41 mm.</p> |
