| 摘要 |
<p>The ventilated marine hatch cover (10) has a well (11) constructed therein and a ventilator (10A) located in the well. The ventilator has an upstanding coaming (14), a cowl (15) associated with the coaming and moveable between a raised ventilating position and a closed position in which the cowl overlies the coaming, means (17-23) to return the cowl in the raised position and quick release means (24) associated with said retaining means whereby the retaining means can be quickly disengaged to permit the cowl to fall by gravity to the closed position, all of said means and the cowl, when in the closed position, being level with or below the level of the hatch cover (10) within the well (11) thereof.</p> |
