John Jones (c.1799-1856) was born in London. In 1839, when he was based in Westfield Terrace, Sheffield, he patented an ‘improved’ table knife. He described it as ‘decidedly the greatest improvement which for upwards of three centuries has been made in this article’. Because dinner dishes were concave and the cutting edge of the traditional blade was straight, Jones reasoned that this meant that only the point of the blade was in contact with the meat. His solution was to chang....