Kick-up rudder for sailboats

Claim 1

A KICK-UP RUDDER CONSTRUCTION FOR SAILBOATS, COMPRISING A VERTICAL-AXIS PIVOT PIN SECURED TO THE STERN OF THE SAILBOAT, A RUDDER BRACKET PIVOTED FOR HORIZONTAL SWINGING MOTION ABOUT THE AXIS OF SAID PIVOT PIN SAID BRACKET COMPRISING PARALLEL SPACED VERTICAL PLATES, A RUDDER BLADE HAVING ITS UPPER END RECEIVED BETWEEN SAID PLATES FOR VERTICAL PIVOTING MOTION OF SAID BLADE BETWEEN A DOWN-SWUNG LOWERED POSITION BENEATH THE BOAT AND AN UP-SWUNG RAISED POSITION AT LEAST SUBSTANTIALLY OUT OF THE WATER, A COMBINED PIVOT AXLE AND CLAMPING BOLT PASSING HORIZONTALLY THROUGH SAID PLATES AND SAID BLADE FRICTIONAL COMPRESSION WASHERS ADJUSTABLY CLAMPED AGAINST THE OUTER FACES OF SAID PLATES BY SAID BOLT AND A NUT THEREON, AND COOPERATING LOCALIZED DETENT FORMATIONS ON THE INNER FACE OF ONE OF SAID PLATES AND THE CORRESPONDING OUTER FACE OF SAID BLADE TO DEFINE REST POSITIONS OF SAID BLADE IN ITS RESPECTIVE LOWERED AND RAISED POSITIONS.