. "1887-01-22Z"^^ . . "Whitworth, Joseph"@en . "English engineer, entrepreneur" . . "Sir Joseph Whitworth, 1st Baronet (21 December 1803 \u2013 22 January 1887) was an English engineer, entrepreneur, inventor and philanthropist. In 1841, he devised the British Standard Whitworth system, which created an accepted standard for screw threads."@en . "1803-12-21Z"^^ . "1803Z"^^ . "Sir Joseph Whitworth"@en . . . . . "1887Z"^^ . . . "Sir Joseph Whitworth"@en . .