CHUBB, CHARLES (d. 1845), English locksmith, started a hardware business at Winchester, subsequently removing to Port sea. Here he improved on the "detector" lock originally patented in 1818 by his brother, Jeremiah Chubb. He soon moved to London and then to Wolverhampton, where he employed two hundred workers. In 1835 he patented a process intended to render safes burglar-proof and fireproof, and eventually estab lished a large safe-factory in London. He died on May 16, and was succeeded in the business by his son, John Chubb (1816 72), who patented various improvements in the products of the firm.