SAIL BOOM-JACK Russian patent published in 2015 - IPC B63H9/10 

FIELD: transport.

SUBSTANCE: invention relates to sea and river transport, namely to running rigging of sea and river vessels with sailing equipment. The sail boom-jack represents mechanism fixed on vessel structures and based on bobbin for unwinding and reverse winding on running rigging tackle, e.g. rope. The mechanism represents inertial mechanism for unwinding and reverse winding on running rigging tackle, e.g. rope, which is fixed by its stretching out end on forecastle or on sail boom. The mechanism is fixed on forecastle or sail boom.

EFFECT: effectiveness of sail-boom position control and lower risk of emergency situation occurrence.

3 cl, 2 dwg