Robert Luke Howard
Robert Luke Howard (1834-1919) of Hayward Tyler and Co
1856 Patent. '1572. To Robert Luke Howard, of 85, Whitecross-street, in the county of Middlesex, Engineer, for the invention of "improvements in valves for regulating the flow of fluids."[1]
1856 Acquired the business of Hayward Tyler and Co
Later joined by his brother Eliot Howard