 He died in the middle of 1758 in Broad Campden, where he had lived almost all his adult life.The protection of his invention by Hulls depended on the financial support of his neighbour named Freeman at Batsford Park.The patent for the invention by Hulls is dated 21 December 1736, and his account of it appeared as "Description and Draught of a new-invented Machine for carrying Vessels or Ships out of or into any Harbour, Port, or River against Wind and Tide, or in a Calm; for which his Majesty has granted Letters-patent for the sole benefit of the Author for the space of fourteen years" (London, 1737).