| 摘要 |
<p>The system gives an alarm to occupants of a boat when there is danger of dragging its anchor or when water height is insufficient for the boat to float. A detector is provided comprising a box (8) with a cover (9) which is glued or screwed through which a length of cable (10) passes to permit attachment to the floating vessel. Two pistons (11, 12) separated by a partition (13) are attached to cables (14, 15) in turn connected to lead weights. These pistons act on electrical or electronic circuit (16) to signal open or closed circuit via a flexible electrical cable (17) to a connector (18) at control box containing alarms and located near occupants.</p> |
