Immersed beacon for locating e.g. fishing gear, has electro-mechanical type releasing mechanism i.e. gear motor, controlling ratchet for blocking or allowing free rotation of winding drum around which mooring rope is spooled

摘要

The beacon (1) has a case enclosing a radio acoustic signal receiver (4), and a mooring rope (11) attached to a mooring point at one end. An electro-mechanical type releasing mechanism i.e. gear motor (7), is enclosed in a sealed tank (5) constituting a reserve of buoyancy. The mechanism controls a ratchet (8) for blocking or allowing free rotation of a winding drum (10) around which the rope is spooled. The gear motor drives the ratchet in cooperation with teeth (9) for forming a ratchet mechanism to ensure unwinding of the rope when a signal is sent to the receiver.