Articulated boat train and coupling tending to

Claim 1

A PROPELLED TRAIN OF BOATS COMPRISING A PLURALITY OF ARTICULATED COUPLING MEANS EACH OF WHICH INTERCONNECTS TWO SUCCESSIVE BOATS OF THE TRAIN AND INCLUDES ELASTIC MEANS FOR GENERATING BY THE RESILIENT REACTION THEREOF A RIGHTING TORQUE BETWEEN TWO SUCCESSIVE BOATS MISALIGNED UNDER THE ACTION OF A FORCE, SAID RIGHTING TORQUE HAVING A VARIABLE MAGNITUDE WHICH IS A FUNCTION OF THE DEGREE OF MISALIGNMENT BETWEEN SAID TWO SUCCESSIVE BOATS AND WHICH IS EFFECTIVE TO AUTOMATICALLY RE-ALIGN SAID BOATS AFTER THE REMOVAL OF SAID FORCE, AND TWO RUDDER ASSEMBLIES RESPECTIVELY PIVOTABLY SECURED TO THE FRONT END OF THE LEADING BOAT AND TO THE REAR END OF THE REAR BOAT OF THE TRAIN, SAID TRAIN BEING ADVANCEABLE ALONG AN ARCUATE PATH OF DETERMINABLE CURVATURE WITH THE RUDDER ASSEMBLIES PIVOTED TO ASSUME POSITIONS IN WHICH THE RIGHTING TORQUE GENERATED BY EACH COUPLING MEANS BALANCES THE MOMENT APPLIED TO SAID COUPLING MEANS BY THE PIVOTED RUDDER ASSEMBLIES.