Boat and propulsion means therefor

Claim 1

A BOAT COMPRISING, IN COMBINATION, TWO ELONGATE HULLS, A DECK CARRIED BY SAID HULLS AND EXTENDING THE LENGTH THEREOF AND EXTENDING THEREBETWEEN TO SPACE THE HULLS IN MIRROR IMAGE RELATION, SAID DECK HAVING A BOTTOM SURFACE WITH SAID SURFACE BETWEEN THE HULLS BEING PLANAR FOR THE LENGTH THEREOF, SAID HULLS BEING GENERALLY PARALLEL AND HAVING OPPOSITE OUTER PLANAR SIDES PARALLEL TO THE LONGITUDINAL CENTER LINE OF THE BOAT, SAID HULLS HAVING INNER ADJACENT SIDES CONTOURED TO COOPERATE WITH SAID BOTTOM SURFACE OF THE DECK TO FORM AN UNOBSTRUCTED VENTURI PASSAGE BETWEEN SAID HULLS, SAID INNER ADJACENT HULL SIDES HAVING SUBSTANTAILLY STRAIGHT PARALLEL PLANAR PORTIONS FORMING A VENTURI THROAT AND END PORTIONS ON THE RESPECTIVE HULLS IN DIVERGING RELATION EXTENDING FROM THE VENTURI THROAT TO RESPECTIVE ENDS OF THE HULLS AND FORMING ENLARGED ENTRY AND OUTLET PORTIONS OF THE VENTURI PASSAGE, AND PROPELLING MEANS OF CYCLOIDAL TYPE HAVING A PLURALITY OF DEPENDING PADDLES BODILY ROTATABLE ABOUT A VERTICAL AXIS, SAID PROPELLING MEANS BEING SUPPORTED ON SAID DECK ON THE CENTER LINE OF THE BOAT AT ONE OF SAID ENLARGED PORTIONS OF SAID VENTURI PASSAGE ADJACENT SAID VENTURI THROAT WITH ONLY THE PADDLES EXTENDING BELOW THE BOTTOM SURFACE OF THE DECK INTO SAID PASSAGE FOR PROPELLING WATER THROUGH SAID VENTURI PASSAGE AND THUS PROPEL THE BOAT IN OPERATION.