This gorgeous tile and terracotta facade marks the former London showroom of steam engineer John James Royle. The premises in Cock Lane, Smithfield promoted his products made in Manchester: radiators, water heaters, industrial evaporators and the like. Indeed, Royle was such a prolific inventor that he took over a firm of patent attorneys in Manchester, now known as Wilson Gunn.
Royle's main business may have been commercial and industrial, but he is best remembered for a household innovation. It solved a problem facing many Victorian families: in a large household, a large teapot made sense - until you tried to lift it. His solution was the self-pouring teapot, initially produced as a novelty promotional item but later manufactured in thousands. It worked by a pumping mechanism: the lid, lifted and lowered, acted as a piston to increase pressure inside the pot, forcing tea out through its down-curved spout into the waiting cups below. The only disadvantage: the steam hole in the lid had to be covered with a finger, making pouring an uncomfortable if not dangerous experience.