Joseph Whitworth, British engineer and inventor

Joseph Whitworth, British engineer and inventor

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Credit: SCIENCE PHOTO LIBRARY

Caption: Joseph Whitworth. Portrait of Sir Joseph Whitworth (1803-1887), British engineer and inventor. Whit- worth had a major impact on engineering, pioneering the use of precise measurement. From 1834 he obtained many patents for machinery components and his company was generally regarded as Britain's leading manufacturer of machine tools. In 1841, he invented the standardised screw thread that still bears his name. During the 1850s he designed improved rifles and artillery. For these he subjected molten steel to pressure during solidification, the metal then being known as Whitworth Steel. On his death he gave large amounts of money to charitable causes.

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Keywords: engineer, portraits, screw thread, sir joseph, steel making, surname w, whitworth

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